Solid-state NMR study of ethylene-vinyl alcohol copolymers

被引：0
|
作者：
Zhang, QJ [1 ]
Lin, WX
Chen, Q
机构：
[1] E China Normal Univ, Analyt Ctr, Shanghai 200062, Peoples R China
[2] E China Normal Univ, Key Lab Educ, Minist Opt & Magnet Resonance Spect, Shanghai 200062, Peoples R China
来源：
ACTA POLYMERICA SINICA | 2000年 / 06期
关键词：
ethylene-vinyl alcohol copolymer; hydrogen-bonding interaction; NMR; chain structure;
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：
A series of ethylene-vinyl alcohol copolymers (EVOH) with different comonomer contents were studied by both solution state and solid-state high-resolution C-13-NMR spectroscopy. A new assignment of C-13-CP/MAS spectrum of EVOH was given. It was demonstrated that the triple splitting of the signal of methine carbon of the vinyl alcohol unit in C-13-CP/MAS spectrum is caused by sequence distribution, tacticity and intra- and inter- molecular hydrogen-bonding interactions.
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页码：800 / 804
页数：5
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