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Studies upon the fine structure and selected physical and physicochemical properties of butrylchitin membranes
Author(s) -
Urbańczyk G.,
LippSymonowicz B.,
Jeziorny A.,
UrbaniakDomagala W.,
Wrzosek H.
Publication year - 1994
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1994.070541011
Subject(s) - membrane , materials science , swelling , volume fraction , crystal (programming language) , ultimate tensile strength , casting , polymer chemistry , differential scanning calorimetry , chemical engineering , chemistry , composite material , biochemistry , thermodynamics , computer science , engineering , programming language , physics
Abstract The effect of varying the molecular weight of butyrylchitin membranes cast from methylene chloride on their properties has been investigated. Characterization analyses include X‐ray, scanning calorimetry and tensile stress‐strain. The crystal structure of the butyrylchitin was shown to consist of fringed micelles, irrespective of the molecular weights examined, and of lower crystal volume fraction than usually found for chitin membranes, 0.3 versus 0.5, respectively. The membranes exhibit greater ductility and less swelling in physiological salt solution with increasing molecular weight. © 1994 John Wiley & Sons, Inc.