ISSN:
0021-8995
Keywords:
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
Sorption, permeation, and diffusion behaviors of poly(γ-methyl glutamate) were examined in the light of superstructure including conformation. Highly crystalline PMG, chloesteric twisted structure, low crystalline PMG, which are all composed of α helix, and β form PMG were prepared using cast solvent of chloroform, dichloromethane-dimethylformamide, and dimethylformamide and treating by formic acid, respectively. The large amount sorbed and the sorption capacity were interpreted by an existence of a microvoid in PMG cast film from chloroform. On the other hand, β form PMG had small amount sorbed. The sorption behavior was remarkably influenced by superstructure as well as conformation, while the effect of only conformation on the permeation behavior was recognized. A peculiar permeation was detected around 100°C for all the samples.
Additional Material:
5 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/app.1985.070300701
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