Stereochemical configuration of poly(maleic acid) as studied by C-13 NMR

被引：11

作者：

deGroot, J

Hollander, JG

deBleijser, J

机构：

[1] Leiden Institute of Chemistry, Gorlaeus Laboratories, University of Leiden, NL-2300 RA Leiden

来源：

MACROMOLECULES | 1997年 / 30卷 / 22期

关键词：

D O I：

10.1021/ma970495l

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The tacticity of poly(maleic acid) has been resolved by 150-MHz C-13 NMR spectroscopy in 0.1 N HCl solution at 60 degrees C by using the chemical shifts from the backbone carbon atoms and the carboxyl carbon atoms. The racemic propagation is found to be preferred by a factor 2 over mesomeric propagation. The resonances of the carboxyl carbon atoms can be assigned to configurations of heptad sequences along the polymer chain.

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页码：6884 / 6887

页数：4

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