Philip Brown | The Ohio State University (original) (raw)

Papers by Philip Brown

Research paper thumbnail of Durable, superoleophobic polymer–nanoparticle composite surfaces with re-entrant geometry via solvent-induced phase transformation

Superoleophobic plastic surfaces are useful in a wide variety of applications including anti-foul... more Superoleophobic plastic surfaces are useful in a wide variety of applications including anti-fouling, self-cleaning, anti-smudge, and low-drag. Existing examples of superoleophobic surfaces typically rely on poorly adhered coatings or delicate surface structures, resulting in poor mechanical durability. Here, we report a facile method for creating re-entrant geometries desirable for superoleophobicity via entrapment of nanoparticles in polycarbonate surfaces. Nanoparticle incorporation occurs during solvent-induced swelling and subsequent crystallization of the polymer surface. The resulting surface was found to comprise of re-entrant structures, a result of the nanoparticle agglomerates acting as nucleation points for polymer crystallization. Examples of such surfaces were further functionalized with fluorosilane to result in a durable, super-repellent surface. This method of impregnating nanoparticles into polymer surfaces could prove useful in improving the anti-bacterial, mechanical, and liquid-repellent properties of plastic devices.

Research paper thumbnail of Designing bioinspired superoleophobic surfaces

Research paper thumbnail of Bioinspired, roughness-induced, water and oil super-philic and super-phobic coatings prepared by adaptable layer-by-layer technique

Coatings with specific surface wetting properties are of interest for anti-fouling, anti-fogging,... more Coatings with specific surface wetting properties are of interest for anti-fouling, anti-fogging, antiicing, self-cleaning, anti-smudge, and oil-water separation applications. Many previous bioinspired surfaces are of limited use due to a lack of mechanical durability. Here, a layer-by-layer technique is utilized to create coatings with four combinations of water and oil repellency and affinity. An adapted layer-by-layer approach is tailored to yield specific surface properties, resulting in a durable, functional coating. This technique provides necessary flexibility to improve substrate adhesion combined with desirable surface chemistry. Polyelectrolyte binder, SiO 2 nanoparticles, and silane or fluorosurfactant layers are deposited, combining surface roughness and necessary chemistry to result in four different coatings: superhydrophilic/superoleophilic, superhydrophobic/superoleophilic, superhydrophobic/superoleophobic, and superhydrophilic/superoleophobic. The superoleophobic coatings display hexadecane contact angles >150° with tilt angles <5°, whilst the superhydrophobic coatings display water contact angles >160° with tilt angles <2°. One coating combines both oleophobic and hydrophobic properties, whilst others mix and match oil and water repellency and affinity. Coating durability was examined through the use of micro/macrowear experiments. These coatings display transparency acceptable for some applications. Fabrication via this novel combination of techniques results in durable, functional coatings displaying improved performance compared to existing work where either durability or functionality is compromised.

Research paper thumbnail of Mechanically durable, superomniphobic coatings prepared by layer-by-layer technique for self-cleaning and anti-smudge

Journal of colloid and interface science, Jan 15, 2015

Superomniphobic surfaces are of interest for anti-fouling, self-cleaning, anti-smudge and low-dra... more Superomniphobic surfaces are of interest for anti-fouling, self-cleaning, anti-smudge and low-drag applications. Many bioinspired surfaces developed previously are of limited use due to a lack of mechanical durability. From a previously developed technique, an adapted layer-by-layer approach involving charged species with electrostatic interactions between layers is combined with an uncharged fluorosilane layer to result in a durable, superomniphobic coating. This technique can provide the flexibility needed to improve adhesion to the substrate with the addition of a low surface tension coating at the air interface. In this work, polyelectrolyte binder, SiO2 nanoparticles, and fluorosilane layers are deposited, providing the combination of surface roughness and low surface tension to result in a superomniphobic coating with droplets of liquids with surface tensions from 72 to 21 mNm(-1) displaying contact angles exceeding 155° with low tilt angles. The durability of these coatings w...

Research paper thumbnail of Mechanically durable, superoleophobic coatings prepared by layer-by-layer technique for anti-smudge and oil-water separation

Scientific reports, 2015

Superoleophobic surfaces are of interest for anti-fouling, self-cleaning, anti-smudge, low-drag, ... more Superoleophobic surfaces are of interest for anti-fouling, self-cleaning, anti-smudge, low-drag, anti-fog, and oil-water separation applications. Current bioinspired surfaces are of limited use due to a lack of mechanical durability. A so-called layer-by-layer approach, involving charged species with electrostatic interactions between layers, can provide the flexibility needed to improve adhesion to the substrate while providing a low surface tension coating at the air interface. In this work, a polyelectrolyte binder, SiO2 nanoparticles, and a fluorosurfactant are spray deposited separately to create a durable, superoleophobic coating. Polydiallyldimethylammonium chloride (PDDA) polyelectrolyte was complexed with a fluorosurfactant layer (FL), which provides oil repellency while being hydrophilic. This oleophobic/superhydrophilic behavior was enhanced through the use of roughening with SiO2 particles resulting in a superoleophobic coating with hexadecane contact angles exceeding 15...

Research paper thumbnail of Topographical length scales of hierarchical superhydrophobic surfaces

Applied Surface Science

The morphology of hydrophobic CF4 plasma fluorinated polybutadiene surfaces has been characterise... more The morphology of hydrophobic CF4 plasma fluorinated polybutadiene surfaces has been characterised using atomic force microscopy (AFM). judicious choice of the plasma power and exposure duration leads to formation of three different surface morphologies (Micro, Nano, and Micro + Nano). Scaling theory analysis shows that for all three surface topographies, there is an initial increase in roughness with length scale followed by a levelling-off to a saturation level. At length scales around 500nm, it is found that the roughness is very similar for all three types of surfaces, and the saturation roughness value for the Micro + Nano morphology is found to be intermediate between those for the Micro and Nano surfaces. Fast Fourier Transform (FFT) analysis has shown that the Micro + Nano topography comprises a hierarchical superposition of Micro and Nano morphologies. Furthermore, the Micro +Nano surfaces display the highest local roughness (roughness exponent alpha=0.42 for length scales ...

Research paper thumbnail of Ultrafast Oleophobic–Hydrophilic Switching Surfaces for Antifogging, Self-Cleaning, and Oil–Water Separation

ACS Appl. Mater. Interfaces, 2014

ABSTRACT Smooth copolymer-fluorosurfactant complex film surfaces are found to exhibit fast oleoph... more ABSTRACT Smooth copolymer-fluorosurfactant complex film surfaces are found to exhibit fast oleophobic-hydrophilic switching behavior. Equilibration of the high oil contact angle (hexadecane = 80°) and low water contact angle (&lt;10°) values occurs within 10 s of droplet impact. These optically transparent surfaces display excellent antifogging and self-cleaning properties. The magnitude of oleophobic-hydrophilic switching can be further enhanced by the incorporation of surface roughness to an extent that it reaches a sufficiently high level (water contact angle &lt;10° and hexadecane contact angle &gt;110°), which, when combined with the inherent ultrafast switching speed, yields oil-water mixture separation efficiencies exceeding 98%.

Research paper thumbnail of Atomized Spray Plasma Deposition of Structurally Well-Defined Bioactive Coatings

Plasma Chemistry and Plasma Processing, 2014

ABSTRACT Abstract Structurally well-defined bioactive films have been prepared in a single solven... more ABSTRACT Abstract Structurally well-defined bioactive films have been prepared in a single solventless step by atomizing precursor molecules into a non-equilibrium electrical discharge. By way of example, atomized spray plasma deposition is used to form poly(alkyl acrylate) arrays for phospholipid immobilization, and poly(N-acryloylsarcosine methyl ester) protein-resistant surfaces. Graphical Abstract

Research paper thumbnail of Oxidative atomized spray deposition of electrically conductive poly(3,4-ethylenedioxythiophene)

Chemical Communications, 2013

Atomized spray deposition of 3,4-ethylenedioxythiophene monomer in the presence of triflic anhydr... more Atomized spray deposition of 3,4-ethylenedioxythiophene monomer in the presence of triflic anhydride vapour yields electrically conducting poly(3,4-ethylenedioxythiophene) layers.

Research paper thumbnail of Combining plasmachemical emulsion-templating with ATRP to create macroporous lipophilic surfaces

Journal of Colloid and Interface Science, 2014

Well-defined alkyl chain side group polymer brushes have been tethered onto high surface area mac... more Well-defined alkyl chain side group polymer brushes have been tethered onto high surface area macroporous pulsed plasmachemical emulsion-templated poly(vinylbenzyl chloride) initiator layers (typically 600-700 m2 g(-1)) using atom transfer radical polymerisation (ATRP). Immobilisation of phospholipids onto these bioactive surfaces is found to occur through interdigitation, and the efficacy of lipid binding is governed by the alkyl side group chain length of the polymer brushes.

Research paper thumbnail of Evaporation of picoliter droplets on surfaces with a range of wettabilities and thermal conductivities

Physical Review E, 2012

The evaporation of picolitre water and ethanol droplets generated by Drop-on-Demand inkjet printi... more The evaporation of picolitre water and ethanol droplets generated by Drop-on-Demand inkjet printing was investigated on substrates with apparent contact angles between 10 • and 135 • and thermal conductivities between 0.25−149 W m −1 K −1 . Drying times were calculated from a diffusionlimited model for droplets with both pinned and moving contact lines as a function of droplet diameter and apparent contact angle. Droplets with a moving contact line take longer to dry on hydrophilic substrates than pinned droplets. The difference in drying times between evaporative modes vanishes at large apparent contact angles. Hence, similar drying times are obtained for both modes on hydrophobic substrates. The predicted drying times for glass and silicon substrates were in good quantitative agreement with experimental data, suggesting that thermal effects are negligible for substrates of these base materials. However, on a PTFE substrate which has a lower thermal conductivity more relevant to inkjet printing, evaporative cooling reduces the evaporation rate causing drying times to be under-predicted by isothermal models.

Research paper thumbnail of Nanoplasma surface electrification

Journal of Materials Chemistry, 2012

ABSTRACT Charge nanopatterning onto polymer film surfaces has been accomplished by using an SPMpr... more ABSTRACT Charge nanopatterning onto polymer film surfaces has been accomplished by using an SPMprobe tip to create localised corona discharge electrification. The efficacy of surface charging is shown to strongly correlate to the polymer substrate hydrophilicity. This has led to a predictive structure-behaviour relationship.

Research paper thumbnail of Superhydrophobic Hierarchical Honeycomb Surfaces

Langmuir, 2012

Two-dimensional hexagonally ordered honeycomb surfaces have been created by solvent casting polyb... more Two-dimensional hexagonally ordered honeycomb surfaces have been created by solvent casting polybutadiene films under controlled humidity. Subsequent CF(4) plasmachemical fluorination introduces cross-linking and surface texturing, leading to hierarchical surfaces with roughness on both the 10 μm (honeycomb) and micrometer (texturing) length scales. For microliter droplets, these display high water contact angle values (&gt;170°) in combination with low contact angle hysteresis (i.e., superhydrophobicity) while displaying bouncing of picoliter water droplets. In the case of picoliter droplets, it is found that surfaces which exhibit similar static contact angles can give rise to different droplet impact dynamics, governed by the underlying surface topography. These studies are of relevance to technological processes such as rapid cooling, delayed freezing, crop spraying, and inkjet printing.

Research paper thumbnail of Impact of Picoliter Droplets on Superhydrophobic Surfaces with Ultralow Spreading Ratios

Langmuir, 2011

The impact of picoliter-sized water droplets on superhydrophobic CF(4) plasma fluorinated polybut... more The impact of picoliter-sized water droplets on superhydrophobic CF(4) plasma fluorinated polybutadiene surfaces is investigated with high-speed imaging. Variation of the surface topography by plasmachemical modification enables the dynamics of wetting to be precisely controlled. Final spreading ratios as low as 0.63 can be achieved. A comparison of the maximum spreading ratio and droplet oscillation frequencies to models described in the literature shows that both are found to be much lower than theoretically predicted.

Research paper thumbnail of A Substrate-Independent Lift-Off Approach for Patterning Functional Surfaces

ACS Applied Materials & Interfaces, 2011

A lift-off method for creating multifunctional patterned surfaces has been devised. It entails co... more A lift-off method for creating multifunctional patterned surfaces has been devised. It entails consecutive pulsed plasmachemical deposition of a reactive bottom layer and a protective top release layer. By way of example, a bottom/top layer combination comprising pulsed plasma deposited poly(glycidyl methacrylate)/poly(pentafluorostyrene) has been shown to display selective adhesive lift-off of the latter. Application of a prepatterned adhesive template yields well-defined arrays of reactive epoxide functionality surrounded by a passive fluoropolymer background or vice versa.

Research paper thumbnail of Durable, superoleophobic polymer–nanoparticle composite surfaces with re-entrant geometry via solvent-induced phase transformation

Superoleophobic plastic surfaces are useful in a wide variety of applications including anti-foul... more Superoleophobic plastic surfaces are useful in a wide variety of applications including anti-fouling, self-cleaning, anti-smudge, and low-drag. Existing examples of superoleophobic surfaces typically rely on poorly adhered coatings or delicate surface structures, resulting in poor mechanical durability. Here, we report a facile method for creating re-entrant geometries desirable for superoleophobicity via entrapment of nanoparticles in polycarbonate surfaces. Nanoparticle incorporation occurs during solvent-induced swelling and subsequent crystallization of the polymer surface. The resulting surface was found to comprise of re-entrant structures, a result of the nanoparticle agglomerates acting as nucleation points for polymer crystallization. Examples of such surfaces were further functionalized with fluorosilane to result in a durable, super-repellent surface. This method of impregnating nanoparticles into polymer surfaces could prove useful in improving the anti-bacterial, mechanical, and liquid-repellent properties of plastic devices.

Research paper thumbnail of Designing bioinspired superoleophobic surfaces

Research paper thumbnail of Bioinspired, roughness-induced, water and oil super-philic and super-phobic coatings prepared by adaptable layer-by-layer technique

Coatings with specific surface wetting properties are of interest for anti-fouling, anti-fogging,... more Coatings with specific surface wetting properties are of interest for anti-fouling, anti-fogging, antiicing, self-cleaning, anti-smudge, and oil-water separation applications. Many previous bioinspired surfaces are of limited use due to a lack of mechanical durability. Here, a layer-by-layer technique is utilized to create coatings with four combinations of water and oil repellency and affinity. An adapted layer-by-layer approach is tailored to yield specific surface properties, resulting in a durable, functional coating. This technique provides necessary flexibility to improve substrate adhesion combined with desirable surface chemistry. Polyelectrolyte binder, SiO 2 nanoparticles, and silane or fluorosurfactant layers are deposited, combining surface roughness and necessary chemistry to result in four different coatings: superhydrophilic/superoleophilic, superhydrophobic/superoleophilic, superhydrophobic/superoleophobic, and superhydrophilic/superoleophobic. The superoleophobic coatings display hexadecane contact angles >150° with tilt angles <5°, whilst the superhydrophobic coatings display water contact angles >160° with tilt angles <2°. One coating combines both oleophobic and hydrophobic properties, whilst others mix and match oil and water repellency and affinity. Coating durability was examined through the use of micro/macrowear experiments. These coatings display transparency acceptable for some applications. Fabrication via this novel combination of techniques results in durable, functional coatings displaying improved performance compared to existing work where either durability or functionality is compromised.

Research paper thumbnail of Mechanically durable, superomniphobic coatings prepared by layer-by-layer technique for self-cleaning and anti-smudge

Journal of colloid and interface science, Jan 15, 2015

Superomniphobic surfaces are of interest for anti-fouling, self-cleaning, anti-smudge and low-dra... more Superomniphobic surfaces are of interest for anti-fouling, self-cleaning, anti-smudge and low-drag applications. Many bioinspired surfaces developed previously are of limited use due to a lack of mechanical durability. From a previously developed technique, an adapted layer-by-layer approach involving charged species with electrostatic interactions between layers is combined with an uncharged fluorosilane layer to result in a durable, superomniphobic coating. This technique can provide the flexibility needed to improve adhesion to the substrate with the addition of a low surface tension coating at the air interface. In this work, polyelectrolyte binder, SiO2 nanoparticles, and fluorosilane layers are deposited, providing the combination of surface roughness and low surface tension to result in a superomniphobic coating with droplets of liquids with surface tensions from 72 to 21 mNm(-1) displaying contact angles exceeding 155° with low tilt angles. The durability of these coatings w...

Research paper thumbnail of Mechanically durable, superoleophobic coatings prepared by layer-by-layer technique for anti-smudge and oil-water separation

Scientific reports, 2015

Superoleophobic surfaces are of interest for anti-fouling, self-cleaning, anti-smudge, low-drag, ... more Superoleophobic surfaces are of interest for anti-fouling, self-cleaning, anti-smudge, low-drag, anti-fog, and oil-water separation applications. Current bioinspired surfaces are of limited use due to a lack of mechanical durability. A so-called layer-by-layer approach, involving charged species with electrostatic interactions between layers, can provide the flexibility needed to improve adhesion to the substrate while providing a low surface tension coating at the air interface. In this work, a polyelectrolyte binder, SiO2 nanoparticles, and a fluorosurfactant are spray deposited separately to create a durable, superoleophobic coating. Polydiallyldimethylammonium chloride (PDDA) polyelectrolyte was complexed with a fluorosurfactant layer (FL), which provides oil repellency while being hydrophilic. This oleophobic/superhydrophilic behavior was enhanced through the use of roughening with SiO2 particles resulting in a superoleophobic coating with hexadecane contact angles exceeding 15...

Research paper thumbnail of Topographical length scales of hierarchical superhydrophobic surfaces

Applied Surface Science

The morphology of hydrophobic CF4 plasma fluorinated polybutadiene surfaces has been characterise... more The morphology of hydrophobic CF4 plasma fluorinated polybutadiene surfaces has been characterised using atomic force microscopy (AFM). judicious choice of the plasma power and exposure duration leads to formation of three different surface morphologies (Micro, Nano, and Micro + Nano). Scaling theory analysis shows that for all three surface topographies, there is an initial increase in roughness with length scale followed by a levelling-off to a saturation level. At length scales around 500nm, it is found that the roughness is very similar for all three types of surfaces, and the saturation roughness value for the Micro + Nano morphology is found to be intermediate between those for the Micro and Nano surfaces. Fast Fourier Transform (FFT) analysis has shown that the Micro + Nano topography comprises a hierarchical superposition of Micro and Nano morphologies. Furthermore, the Micro +Nano surfaces display the highest local roughness (roughness exponent alpha=0.42 for length scales ...

Research paper thumbnail of Ultrafast Oleophobic–Hydrophilic Switching Surfaces for Antifogging, Self-Cleaning, and Oil–Water Separation

ACS Appl. Mater. Interfaces, 2014

ABSTRACT Smooth copolymer-fluorosurfactant complex film surfaces are found to exhibit fast oleoph... more ABSTRACT Smooth copolymer-fluorosurfactant complex film surfaces are found to exhibit fast oleophobic-hydrophilic switching behavior. Equilibration of the high oil contact angle (hexadecane = 80°) and low water contact angle (&lt;10°) values occurs within 10 s of droplet impact. These optically transparent surfaces display excellent antifogging and self-cleaning properties. The magnitude of oleophobic-hydrophilic switching can be further enhanced by the incorporation of surface roughness to an extent that it reaches a sufficiently high level (water contact angle &lt;10° and hexadecane contact angle &gt;110°), which, when combined with the inherent ultrafast switching speed, yields oil-water mixture separation efficiencies exceeding 98%.

Research paper thumbnail of Atomized Spray Plasma Deposition of Structurally Well-Defined Bioactive Coatings

Plasma Chemistry and Plasma Processing, 2014

ABSTRACT Abstract Structurally well-defined bioactive films have been prepared in a single solven... more ABSTRACT Abstract Structurally well-defined bioactive films have been prepared in a single solventless step by atomizing precursor molecules into a non-equilibrium electrical discharge. By way of example, atomized spray plasma deposition is used to form poly(alkyl acrylate) arrays for phospholipid immobilization, and poly(N-acryloylsarcosine methyl ester) protein-resistant surfaces. Graphical Abstract

Research paper thumbnail of Oxidative atomized spray deposition of electrically conductive poly(3,4-ethylenedioxythiophene)

Chemical Communications, 2013

Atomized spray deposition of 3,4-ethylenedioxythiophene monomer in the presence of triflic anhydr... more Atomized spray deposition of 3,4-ethylenedioxythiophene monomer in the presence of triflic anhydride vapour yields electrically conducting poly(3,4-ethylenedioxythiophene) layers.

Research paper thumbnail of Combining plasmachemical emulsion-templating with ATRP to create macroporous lipophilic surfaces

Journal of Colloid and Interface Science, 2014

Well-defined alkyl chain side group polymer brushes have been tethered onto high surface area mac... more Well-defined alkyl chain side group polymer brushes have been tethered onto high surface area macroporous pulsed plasmachemical emulsion-templated poly(vinylbenzyl chloride) initiator layers (typically 600-700 m2 g(-1)) using atom transfer radical polymerisation (ATRP). Immobilisation of phospholipids onto these bioactive surfaces is found to occur through interdigitation, and the efficacy of lipid binding is governed by the alkyl side group chain length of the polymer brushes.

Research paper thumbnail of Evaporation of picoliter droplets on surfaces with a range of wettabilities and thermal conductivities

Physical Review E, 2012

The evaporation of picolitre water and ethanol droplets generated by Drop-on-Demand inkjet printi... more The evaporation of picolitre water and ethanol droplets generated by Drop-on-Demand inkjet printing was investigated on substrates with apparent contact angles between 10 • and 135 • and thermal conductivities between 0.25−149 W m −1 K −1 . Drying times were calculated from a diffusionlimited model for droplets with both pinned and moving contact lines as a function of droplet diameter and apparent contact angle. Droplets with a moving contact line take longer to dry on hydrophilic substrates than pinned droplets. The difference in drying times between evaporative modes vanishes at large apparent contact angles. Hence, similar drying times are obtained for both modes on hydrophobic substrates. The predicted drying times for glass and silicon substrates were in good quantitative agreement with experimental data, suggesting that thermal effects are negligible for substrates of these base materials. However, on a PTFE substrate which has a lower thermal conductivity more relevant to inkjet printing, evaporative cooling reduces the evaporation rate causing drying times to be under-predicted by isothermal models.

Research paper thumbnail of Nanoplasma surface electrification

Journal of Materials Chemistry, 2012

ABSTRACT Charge nanopatterning onto polymer film surfaces has been accomplished by using an SPMpr... more ABSTRACT Charge nanopatterning onto polymer film surfaces has been accomplished by using an SPMprobe tip to create localised corona discharge electrification. The efficacy of surface charging is shown to strongly correlate to the polymer substrate hydrophilicity. This has led to a predictive structure-behaviour relationship.

Research paper thumbnail of Superhydrophobic Hierarchical Honeycomb Surfaces

Langmuir, 2012

Two-dimensional hexagonally ordered honeycomb surfaces have been created by solvent casting polyb... more Two-dimensional hexagonally ordered honeycomb surfaces have been created by solvent casting polybutadiene films under controlled humidity. Subsequent CF(4) plasmachemical fluorination introduces cross-linking and surface texturing, leading to hierarchical surfaces with roughness on both the 10 μm (honeycomb) and micrometer (texturing) length scales. For microliter droplets, these display high water contact angle values (&gt;170°) in combination with low contact angle hysteresis (i.e., superhydrophobicity) while displaying bouncing of picoliter water droplets. In the case of picoliter droplets, it is found that surfaces which exhibit similar static contact angles can give rise to different droplet impact dynamics, governed by the underlying surface topography. These studies are of relevance to technological processes such as rapid cooling, delayed freezing, crop spraying, and inkjet printing.

Research paper thumbnail of Impact of Picoliter Droplets on Superhydrophobic Surfaces with Ultralow Spreading Ratios

Langmuir, 2011

The impact of picoliter-sized water droplets on superhydrophobic CF(4) plasma fluorinated polybut... more The impact of picoliter-sized water droplets on superhydrophobic CF(4) plasma fluorinated polybutadiene surfaces is investigated with high-speed imaging. Variation of the surface topography by plasmachemical modification enables the dynamics of wetting to be precisely controlled. Final spreading ratios as low as 0.63 can be achieved. A comparison of the maximum spreading ratio and droplet oscillation frequencies to models described in the literature shows that both are found to be much lower than theoretically predicted.

Research paper thumbnail of A Substrate-Independent Lift-Off Approach for Patterning Functional Surfaces

ACS Applied Materials & Interfaces, 2011

A lift-off method for creating multifunctional patterned surfaces has been devised. It entails co... more A lift-off method for creating multifunctional patterned surfaces has been devised. It entails consecutive pulsed plasmachemical deposition of a reactive bottom layer and a protective top release layer. By way of example, a bottom/top layer combination comprising pulsed plasma deposited poly(glycidyl methacrylate)/poly(pentafluorostyrene) has been shown to display selective adhesive lift-off of the latter. Application of a prepatterned adhesive template yields well-defined arrays of reactive epoxide functionality surrounded by a passive fluoropolymer background or vice versa.