FRACTIONATION AND CHARACTERIZATION OF POLYACETAL COPOLYMERS BY COLUMN ELUTION METHOD

被引：4
|
作者：
OGAWA, T
机构：
[1] Faculty of Engineering, Kanazawa Institute of Technology, Nonoichi, Ishikawa, 921, 7‐1, Ohgigaoka
来源：
JOURNAL OF APPLIED POLYMER SCIENCE | 1990年 / 40卷 / 9-10期
关键词：
D O I：
10.1002/app.1990.070400909
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Sufficient fractionation was attained for polyacetal copolymers by the column elution method. The characteristics of molecular weight, composition, and sequence length of the original copolymers were evaluated through the analyses of fractions by 1H‐NMR, GPC, and DSC. Comonomer content in polymer fractions decreased with the increase of molecular weight in any samples, and the copolymer prepared by gas‐phase polymerization showed broad compositional distribution as compared with that by solution polymerization. Copyright © 1990 John Wiley & Sons, Inc.
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收藏
页码：1519 / 1527
页数：9
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