NMR and X-ray diffraction study of the crystalline structure of polyacrylonitrile

被引:0
作者
Berestova, SS
Shchirets, VS
Selikhova, VI
Polyakov, DK
Polyakova, GR
Zubov, YA
Polikarpov, VV
机构
来源
VYSOKOMOLEKULYARNYE SOEDINENIYA SERIYA A & SERIYA B | 1996年 / 38卷 / 09期
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中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
An attempt was made to establish the correlation between the tacticity of the molecular chain of polyacrylonitrile (PAN) obtained with different types of initiating systems and the crystallite dimensions. X-ray and NMR spectroscopic studies showed that the lateral dimensions of the crystallites are controlled mainly by the temperature of polymerization (and crystallization, respectively), whereas the longitudional dimensions along the molecular chain, by the polymer microtacticity.
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页码:1612 / 1613
页数:2
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