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Structural changes in poly(L-alanine) induced by heat treatment

✍ Scribed by Masuhiro Tsukada; Masanobu Nagura; Hiroshi Ishikawa


Publisher
John Wiley and Sons
Year
1987
Tongue
English
Weight
558 KB
Volume
25
Category
Article
ISSN
0887-6266

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## Abstract It has been shown that certain structural (X‐ray diffraction) and physical (infrared dichroΓ―sm, α‐relaxation dynamics) characteristics of poly(vinyl chloride) undergo irreversible changes upon sample drawing. This behaviour reveals some non‐equilibrium character of the polymer, even in