C-13 NMR-STUDY OF THE GRAFT-COPOLYMERIZATION OF A MIXTURE OF METHYL-METHACRYLATE WITH ETHYL ACRYLATE ON AMYLOSE

被引：15

作者：

GONI, I

GURRUCHAGA, M

ROMAN, JS

VALERO, M

GUZMAN, GM

机构：

[1] Dpto de Ciencia y Technología de Polímeros, Fac. de Química de San Sebastián, Univ. del Pais Vasco, San Sebastián, 20080

来源：

POLYMER | 1993年 / 34卷 / 03期

关键词：

AMYLOSE; GRAFT COPOLYMER; C-13; NMR; STARCH; ACRYLIC MONOMER; COPOLYMERIZATION;

D O I：

10.1016/0032-3861(93)90543-J

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 study of the simultaneous grafting of ethyl acrylate with methyl methacrylate onto amylose with Ce(IV) ammonium nitrate as initiator was attempted. Grafting yields obtained using gravimetric and C-13 n.m.r. spectroscopic methods were compared and similar results were obtained. A study of the microstructure of the grafted products obtained involving either the quantitative determination of the grafted copolymer composition or the qualitative study of the sequence distribution and the stereochemical configuration of grafted copolymer sequences has been carried out. The alpha-methyl group carbon, the quaternary carbon and the carbonyl group carbon have been found to be sensitive to the relative stereochemical configuration of the chain segments.

引用

页码：512 / 517

页数：6

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