Mechanism and kinetics of stabilization reactions of polyacrylonitrile and related copolymers .3. Comparison among the various types of copolymers as viewed from isothermal DSC thermograms and FT-IR spectral changes

被引：35

作者：

Kakida, H ^{[1
]}

Tashiro, K ^{[1
]}

机构：

[1] OSAKA UNIV,DEPT MACROMOL SCI,GRAD SCH SCI,TOYONAKA,OSAKA 560,JAPAN

来源：

POLYMER JOURNAL | 1997年 / 29卷 / 07期

关键词：

polyacrylonitrile; acrylonitrile-acrylamide copolymer; acrylonitrile-methacrylic acid; copolymer; carbon fiber; stabilization; DSC; FT-IR;

D O I：

10.1295/polymj.29.557

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 [高分子化学与物理]; 080501 [材料物理与化学]; 081704 [应用化学];

摘要：

Relationship between thermal behavior and structural change was studied by an organized combination of iso thermal DSC thermograms and FT-IR spectra so as to investigate the stabilization reactions of acrylonitrile/acrylamide (AN/AAM) copolymer in comparison with those of acrylonitrile/methacrylic acid (AN/MAA) copolymer and polyacrylonitrile (PAN). The isothermal DSC exothermic thermogram of the AN/AAM copolymer was broader than that of the AN/MAA copolymer and a little sharper than that of PAN, indicating that structural changes during stabilization proceed in the AN/AAM sample more slowly than that in the AN/MAA copolymer and more rapidly than PAN homopolymer.

引用

页码：557 / 562

页数：6

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