Jaroslav Mosnacek | Slovak Academy of Sciences (original) (raw)

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Research paper thumbnail of Fotochemicky indukovaná radikálová polymerizácia s prenosom atómu (metyl)akrylátov v prítomnosti kyslíka

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Research paper thumbnail of Mac 2012 photoATRP si

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Research paper thumbnail of Methods of Preparation of α-Diketones and α-Diketone Monomers

Chemicke Listy

α-Diketones are widely used in various branches of industry as photoinitiators in radical polymer... more α-Diketones are widely used in various branches of industry as photoinitiators in radical polymerization, paint curing, preparation of highly sensitive photoresists, polymer grafting, dental resins, as macrophotoinitiators, etc. In this review, various methods of α-diketone preparation are presented and classified according to the starting material structure. Oxidation of ketones having in the α-position the methylene group, the hydroxy group, a halogen atom or other functional groups is described. Methods of preparation of unsaturated α-dicarbonyl compounds are described as well.

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Research paper thumbnail of Mac Copolymerization of LL Lactide with Caprolactone 2005 2027 supp inf

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Research paper thumbnail of Photodegradation and photochemical crosslinking of polylactide (FOTODEGRADÁCIA A FOTOCHEMICKÉ SIEŤOVANIE POLYLAKTIDU)

Chemicke Listy

Thanks to biocompatibility, biodegradability and availability, renewable sources like polylactide... more Thanks to biocompatibility, biodegradability and availability, renewable sources like polylactide materials have been increasingly used in various applications, such as packaging, agriculture and biomedicine. Controlled degradation of polylactide materials is very important in most of their applications. To affect their degradation rate the materials are exposed to various types of radiation. The influence of UV and visible light on changes in molecular characteristics of polylactides is reviewed. While UV radiation at λ < 300 nm leads to fast degradation of polylactide by direct photolysis, irradiation with daylight (λ > 300 nm), which is not absorbed by polylactide, leads to only slow degradation by radical processes due to the presence of impurities, fillers or photosensitizers. Polylactide can be crosslinked only after introduction of C=C bonds into polylactide chains by functionalization or copolymerization.

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Research paper thumbnail of The synthesis and properties of Tulipalin - based hydrogels

Hydrogels are hydrophilic polymers with intrinsic three-dimensional structure extensively studied... more Hydrogels are hydrophilic polymers with intrinsic three-dimensional structure extensively studied as biomaterials or in agriculture as superabsorbent materials. We are described the synthesis of novel superabsorbent hydrogels based on biorenewable monomer - Tulipalin A (α-methylene-γ-butyrolactone). Tulipalin was synthesized following a procedure described by Murray. [1] The aim of the present work was to develop a synthetic method in order to synergistically combine the swelling properties of Tulipalin with practical advantages of acrylamide. These hydrogels were prepared by free radical polymerization (Figure 1) of the hydrolyzed Tulipalin (2-hydroxyethylacrylate) and acrylamide using V-50 as a water soluble initiator and BIS (N,N´-methylenebis(acrylamide)) as a crosslinker. The effect of chemical composition (acrylamide : hydrolyzed Tulipaline ratio), the concentration of monomers in water (15, 30 %) and amounts of crosslinker (0.5, 1, 1.5 %) and initiator (0.2, 0.4 %) were inves...

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Research paper thumbnail of SUPERABSORBENT HYDROGELS BASED ON RENEWABLE MONOMER TULIPALIN A

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Research paper thumbnail of A facile controllable coating of carbonyl iron particles with poly(glycidyl methacrylate): a tool for adjusting MR response and stability properties

J. Mater. Chem. C, 2015

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Research paper thumbnail of Photochemically cross-linked poly(ε-caprolactone) with accelerated hydrolytic degradation

European Polymer Journal, 2015

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Research paper thumbnail of Synthesis of Photoactuating Acrylic Thermoplastic Elastomers Containing Diblock Copolymer-Grafted Carbon Nanotubes

ACS Macro Letters, 2014

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Research paper thumbnail of Influence of surface modification of carbon nanotubes on interactions with polystyrene- b -polyisoprene- b -polystyrene matrix and its photo-actuation properties

Polymers for Advanced Technologies, 2014

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Research paper thumbnail of Cholesteryl-coated carbonyl iron particles with improved anti-corrosion stability and their viscoelastic behaviour under magnetic field

Colloid and Polymer Science, 2014

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Research paper thumbnail of <title>Photoactuators on the base of polymeric elastomers and multiwall carbon nanotubes</title>

Nano-Opto-Mechanical Systems (NOMS), 2011

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Research paper thumbnail of Influence of expanded graphite (EG) and graphene oxide (GO) on physical properties of PET based nanocomposites

Polish Journal of Chemical Technology, 2014

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Research paper thumbnail of Electrical Properties of Lithium Ferrite Nanoparticles Dispersed in a Styrene-Isoprene-Styrene Copolymer Matrix

NATO Science for Peace and Security Series A: Chemistry and Biology, 2014

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Research paper thumbnail of Self-standing elastomeric composites based on lithium ferrites and their dielectric behavior

Journal of Applied Physics, 2014

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Research paper thumbnail of Viscoelastic and photo-actuation studies of composites based on polystyrene-grafted carbon nanotubes and styrene-b-isoprene-b-styrene block copolymer

Polymer, 2014

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Research paper thumbnail of Modification and photostabilization of low density polyethylene film by photodecomposition of various diazo-compounds and methyl azidocarboxylate

Polymer Degradation and Stability, 2007

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Research paper thumbnail of Synthesis, morphology and mechanical properties of linear triblock copolymers based on poly(α-methylene-γ-butyrolactone)

Polymer, 2009

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Research paper thumbnail of Star-like poly (n-butyl acrylate)-b-poly (α-methylene-γ-butyrolactone) block copolymers for high temperature thermoplastic elastomers applications

Polymer, 2010

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Research paper thumbnail of Fotochemicky indukovaná radikálová polymerizácia s prenosom atómu (metyl)akrylátov v prítomnosti kyslíka

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Research paper thumbnail of Mac 2012 photoATRP si

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Research paper thumbnail of Methods of Preparation of α-Diketones and α-Diketone Monomers

Chemicke Listy

α-Diketones are widely used in various branches of industry as photoinitiators in radical polymer... more α-Diketones are widely used in various branches of industry as photoinitiators in radical polymerization, paint curing, preparation of highly sensitive photoresists, polymer grafting, dental resins, as macrophotoinitiators, etc. In this review, various methods of α-diketone preparation are presented and classified according to the starting material structure. Oxidation of ketones having in the α-position the methylene group, the hydroxy group, a halogen atom or other functional groups is described. Methods of preparation of unsaturated α-dicarbonyl compounds are described as well.

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Research paper thumbnail of Mac Copolymerization of LL Lactide with Caprolactone 2005 2027 supp inf

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Research paper thumbnail of Photodegradation and photochemical crosslinking of polylactide (FOTODEGRADÁCIA A FOTOCHEMICKÉ SIEŤOVANIE POLYLAKTIDU)

Chemicke Listy

Thanks to biocompatibility, biodegradability and availability, renewable sources like polylactide... more Thanks to biocompatibility, biodegradability and availability, renewable sources like polylactide materials have been increasingly used in various applications, such as packaging, agriculture and biomedicine. Controlled degradation of polylactide materials is very important in most of their applications. To affect their degradation rate the materials are exposed to various types of radiation. The influence of UV and visible light on changes in molecular characteristics of polylactides is reviewed. While UV radiation at λ < 300 nm leads to fast degradation of polylactide by direct photolysis, irradiation with daylight (λ > 300 nm), which is not absorbed by polylactide, leads to only slow degradation by radical processes due to the presence of impurities, fillers or photosensitizers. Polylactide can be crosslinked only after introduction of C=C bonds into polylactide chains by functionalization or copolymerization.

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Research paper thumbnail of The synthesis and properties of Tulipalin - based hydrogels

Hydrogels are hydrophilic polymers with intrinsic three-dimensional structure extensively studied... more Hydrogels are hydrophilic polymers with intrinsic three-dimensional structure extensively studied as biomaterials or in agriculture as superabsorbent materials. We are described the synthesis of novel superabsorbent hydrogels based on biorenewable monomer - Tulipalin A (α-methylene-γ-butyrolactone). Tulipalin was synthesized following a procedure described by Murray. [1] The aim of the present work was to develop a synthetic method in order to synergistically combine the swelling properties of Tulipalin with practical advantages of acrylamide. These hydrogels were prepared by free radical polymerization (Figure 1) of the hydrolyzed Tulipalin (2-hydroxyethylacrylate) and acrylamide using V-50 as a water soluble initiator and BIS (N,N´-methylenebis(acrylamide)) as a crosslinker. The effect of chemical composition (acrylamide : hydrolyzed Tulipaline ratio), the concentration of monomers in water (15, 30 %) and amounts of crosslinker (0.5, 1, 1.5 %) and initiator (0.2, 0.4 %) were inves...

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Research paper thumbnail of SUPERABSORBENT HYDROGELS BASED ON RENEWABLE MONOMER TULIPALIN A

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Research paper thumbnail of A facile controllable coating of carbonyl iron particles with poly(glycidyl methacrylate): a tool for adjusting MR response and stability properties

J. Mater. Chem. C, 2015

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Research paper thumbnail of Photochemically cross-linked poly(ε-caprolactone) with accelerated hydrolytic degradation

European Polymer Journal, 2015

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Research paper thumbnail of Synthesis of Photoactuating Acrylic Thermoplastic Elastomers Containing Diblock Copolymer-Grafted Carbon Nanotubes

ACS Macro Letters, 2014

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Research paper thumbnail of Influence of surface modification of carbon nanotubes on interactions with polystyrene- b -polyisoprene- b -polystyrene matrix and its photo-actuation properties

Polymers for Advanced Technologies, 2014

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Research paper thumbnail of Cholesteryl-coated carbonyl iron particles with improved anti-corrosion stability and their viscoelastic behaviour under magnetic field

Colloid and Polymer Science, 2014

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Research paper thumbnail of <title>Photoactuators on the base of polymeric elastomers and multiwall carbon nanotubes</title>

Nano-Opto-Mechanical Systems (NOMS), 2011

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Influence of expanded graphite (EG) and graphene oxide (GO) on physical properties of PET based nanocomposites

Polish Journal of Chemical Technology, 2014

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Research paper thumbnail of Electrical Properties of Lithium Ferrite Nanoparticles Dispersed in a Styrene-Isoprene-Styrene Copolymer Matrix

NATO Science for Peace and Security Series A: Chemistry and Biology, 2014

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Self-standing elastomeric composites based on lithium ferrites and their dielectric behavior

Journal of Applied Physics, 2014

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Viscoelastic and photo-actuation studies of composites based on polystyrene-grafted carbon nanotubes and styrene-b-isoprene-b-styrene block copolymer

Polymer, 2014

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Modification and photostabilization of low density polyethylene film by photodecomposition of various diazo-compounds and methyl azidocarboxylate

Polymer Degradation and Stability, 2007

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Synthesis, morphology and mechanical properties of linear triblock copolymers based on poly(α-methylene-γ-butyrolactone)

Polymer, 2009

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Research paper thumbnail of Star-like poly (n-butyl acrylate)-b-poly (α-methylene-γ-butyrolactone) block copolymers for high temperature thermoplastic elastomers applications

Polymer, 2010

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