End-group analysis of poly(methyl methacrylate) prepared with benzoyl peroxide by 750 MHz high-resolution H-1 NMR spectroscopy

被引：34

作者：

Hatada, K

Kitayama, T

Ute, K

Terawaki, Y

Yanagida, T

机构：

[1] Department of Chemistry, Faculty of Engineering Science, Osaka University, Toyonaka

来源：

MACROMOLECULES | 1997年 / 30卷 / 22期

关键词：

D O I：

10.1021/ma970672i

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

H-1 NMR spectra of poly(methyl methacrylate) prepared with benzoyl peroxide in toluene at 100 degrees C were measured on a 750 MHz high-resolution NMR spectrometer. End groups resulting from initiation, chain transfer, and termination reactions were assigned, and the numbers of end groups per polymer molecule were estimated. End-group signals showed splittings due to stereochemical sequences near the chain ends, the analysis of which indicated that the raceme dad at the chain end attached with C6H5- was higher than that with C6H5COO-.

引用

页码：6754 / 6759

页数：6

共 28 条

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