POLYMERS WITH THERMOSENSITIVE C-C BONDS

被引：0
|
作者：
BRAUN, D [1 ]
KUHN, KJ [1 ]
MEID, H [1 ]
HELLMANN, EH [1 ]
HELLMANN, GP [1 ]
机构：
[1] UNIV MAINZ,INST PHYS CHEM,D-55128 MAINZ,GERMANY
来源：
JOURNAL OF POLYMER MATERIALS | 1994年 / 11卷 / 03期
关键词：
POLYMER FRAGMENTATION; THERMAL STABILITY; INITIATORS; GLASSY POLYMERS;
D O I：
暂无
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Controlled fragmentation of copolycarbonates of bisphenol A and thermosensitive diols derived from diphenylethane initiators was studied together with dissociation of monomeric model compounds. Fragmentation was carried out in solution and in bulk under extremely different conditions of matrix viscosity. The kinetics of degradation were studied with gas chromatography, gel permeation chromatography, differential scanning calorimetry, UV spectroscopy, and small angle neutron scattering. Fragmentation of the copolymers in bulk states showed always ''cage effects'' and, in the glassy state, also ''delayed-response effects': which are typical for solid-state reactions.
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页码：197 / 205
页数：9
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