Chain folding in semicrystalline oxyethylene/oxybutylene diblock copolymers

被引：96
作者：
Mai, SM
Fairclough, JPA
Viras, K
Gorry, PA
Hamley, IW
Ryan, AJ
Booth, C
机构：
[1] Univ Manchester, Dept Chem, Manchester M13 9PL, Lancs, England
[2] Univ Sheffield, Dept Chem, Sheffield S3 7UF, S Yorkshire, England
[3] Natl & Kapodistrian Univ Athens, Dept Chem, Phys Chem Lab, GR-15771 Athens, Greece
[4] SERC, Daresbury Lab, CCLRC, Warrington WA4 4AD, Cheshire, England
[5] Univ Leeds, Sch Chem, Leeds LS2 9JT, W Yorkshire, England
来源：
MACROMOLECULES | 1997年 / 30卷 / 26期
关键词：
D O I：
10.1021/ma971158f
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
The chain folding behavior of oxyethylene/oxybutylene (E/B) diblock copolymers, with one crystallizable E block and one noncrystallizable B block, has been studied by simultaneous SAXS and WAXS, low-frequency Raman spectroscopy, and differential scanning calorimetry. Two models, normal density (ND) and crystal/liquid-crystal (CLC) models were used to explore the results, consideration being given to the difference in the cross-sectional area of the two chains and the need to fill space at approximately normal density. It was found that both models can describe the data for the longer copolymers, but the CLC model is better for the shorter copolymers.
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收藏
页码：8392 / 8400
页数：9
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