Jerome Lando - Academia.edu (original) (raw)
Papers by Jerome Lando
Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures, 1995
Polymer Engineering and Science, 1995
Page 1. Double Yield Points in Poly(Tetramethy1ene Terephthalate) and Its Copolymers Under Tensil... more Page 1. Double Yield Points in Poly(Tetramethy1ene Terephthalate) and Its Copolymers Under Tensile Loading *SHIGERU MURAMATSU and JEROME B. LAND0 Department of Macromolecular Science Case Western Reserve University Cleveland, Ohio 441 06-7202 ...
Journal of Polymer Science Part B: Polymer Physics, 2002
To synthesize the copolyester of poly(-hydroxybutyrate) (PHB) and poly(⑀caprolactone) (PCL), the... more To synthesize the copolyester of poly(-hydroxybutyrate) (PHB) and poly(⑀caprolactone) (PCL), the transesterification of PHB and PCL was carried out in the liquid phase with stannous octoate as the catalyzer. The effects of reaction conditions on the transesterification, including catalyzer concentration, reaction temperature, and reaction time, were investigated. The results showed that both rising reaction temperature and increasing reaction time were advantageous to the transesterification. The sequence distribution, thermal behavior, and thermal stability of the copolyesters were investigated by 13 C NMR, Fourier transform infrared spectroscopy, differential scanning calorimetry, wide-angle X-ray diffraction, optical microscopy, and thermogravimetric analysis. The transesterification of PHB and PCL was confirmed to produce the block copolymers. With an increasing PCL content in the copolyesters, the thermal behavior of the copolyesters changed evidently. However, the introduction of PCL segments into PHB chains did not affect its crystalline structure. Moreover, thermal stability of the copolyesters was little improved in air as compared with that of pure PHB.
Journal of Polymer Science Part A: Polymer Chemistry, 1999
A series of side chain liquid crystalline copolymers having different spacer lengths, copolymer c... more A series of side chain liquid crystalline copolymers having different spacer lengths, copolymer compositions, and chromophore types were synthesized and characterized both in the bulk and at the gas-water interface. Liquid crystalline properties were identified by differential scanning calorimetry (DSC), optical microscopy, and X-ray diffraction (XRD). Copolymer with spacer lengths 4, 5, 10, and 11 showed smectic A (S A ) phases with a bâ tonnet texture. The liquid crystalline (LC) phase stabilized as the spacer increased. Copolymers with different compositions were investigated both as monolayers and transferred films. The isotherms suggest nanodomain formation at the gas-water interface in copolymers with high nitrobiphenyl (NBP) content.
Journal of Applied Polymer Science, 1968
... PETER KOVACIC,* MICHAEL B. FELDMAN, Department of Chemistry, and JAN I-'. ICOVACIC, and ... more ... PETER KOVACIC,* MICHAEL B. FELDMAN, Department of Chemistry, and JAN I-'. ICOVACIC, and JEROME B. LANDO, Division of Polymer Science ... increase in crystallinity the half-width of the strongest crystalline reflection decreased, indicating an increase in crys-tallite size. ...
Journal of Applied Physics, 1980
Analytical Chemistry, 1983
ABSTRACT
Macromolecules, 1993
Page 1. Macromolecules 1993,26, 5105-5117 5105 Isothermal Thickening and Thinning Processes in Lo... more Page 1. Macromolecules 1993,26, 5105-5117 5105 Isothermal Thickening and Thinning Processes in Low Molecular Weight Poly(ethy1ene oxide) Fractions Crystallized from the Melt. 4. End-Group Dependence Stephen ZD ...
Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures, 1995
Polymer Engineering and Science, 1995
Page 1. Double Yield Points in Poly(Tetramethy1ene Terephthalate) and Its Copolymers Under Tensil... more Page 1. Double Yield Points in Poly(Tetramethy1ene Terephthalate) and Its Copolymers Under Tensile Loading *SHIGERU MURAMATSU and JEROME B. LAND0 Department of Macromolecular Science Case Western Reserve University Cleveland, Ohio 441 06-7202 ...
Journal of Polymer Science Part B: Polymer Physics, 2002
To synthesize the copolyester of poly(-hydroxybutyrate) (PHB) and poly(⑀caprolactone) (PCL), the... more To synthesize the copolyester of poly(-hydroxybutyrate) (PHB) and poly(⑀caprolactone) (PCL), the transesterification of PHB and PCL was carried out in the liquid phase with stannous octoate as the catalyzer. The effects of reaction conditions on the transesterification, including catalyzer concentration, reaction temperature, and reaction time, were investigated. The results showed that both rising reaction temperature and increasing reaction time were advantageous to the transesterification. The sequence distribution, thermal behavior, and thermal stability of the copolyesters were investigated by 13 C NMR, Fourier transform infrared spectroscopy, differential scanning calorimetry, wide-angle X-ray diffraction, optical microscopy, and thermogravimetric analysis. The transesterification of PHB and PCL was confirmed to produce the block copolymers. With an increasing PCL content in the copolyesters, the thermal behavior of the copolyesters changed evidently. However, the introduction of PCL segments into PHB chains did not affect its crystalline structure. Moreover, thermal stability of the copolyesters was little improved in air as compared with that of pure PHB.
Journal of Polymer Science Part A: Polymer Chemistry, 1999
A series of side chain liquid crystalline copolymers having different spacer lengths, copolymer c... more A series of side chain liquid crystalline copolymers having different spacer lengths, copolymer compositions, and chromophore types were synthesized and characterized both in the bulk and at the gas-water interface. Liquid crystalline properties were identified by differential scanning calorimetry (DSC), optical microscopy, and X-ray diffraction (XRD). Copolymer with spacer lengths 4, 5, 10, and 11 showed smectic A (S A ) phases with a bâ tonnet texture. The liquid crystalline (LC) phase stabilized as the spacer increased. Copolymers with different compositions were investigated both as monolayers and transferred films. The isotherms suggest nanodomain formation at the gas-water interface in copolymers with high nitrobiphenyl (NBP) content.
Journal of Applied Polymer Science, 1968
... PETER KOVACIC,* MICHAEL B. FELDMAN, Department of Chemistry, and JAN I-'. ICOVACIC, and ... more ... PETER KOVACIC,* MICHAEL B. FELDMAN, Department of Chemistry, and JAN I-'. ICOVACIC, and JEROME B. LANDO, Division of Polymer Science ... increase in crystallinity the half-width of the strongest crystalline reflection decreased, indicating an increase in crys-tallite size. ...
Journal of Applied Physics, 1980
Analytical Chemistry, 1983
ABSTRACT
Macromolecules, 1993
Page 1. Macromolecules 1993,26, 5105-5117 5105 Isothermal Thickening and Thinning Processes in Lo... more Page 1. Macromolecules 1993,26, 5105-5117 5105 Isothermal Thickening and Thinning Processes in Low Molecular Weight Poly(ethy1ene oxide) Fractions Crystallized from the Melt. 4. End-Group Dependence Stephen ZD ...