CATIONIC COPOLYMERS OF ISOBUTYLENE .1. NUCLEAR MAGNETIC-RESONANCE INVESTIGATION OF THE STRUCTURE AND MONOMER DISTRIBUTION IN ISOBUTYLENE-BUTADIENE COPOLYMER

被引：20

作者：

CORNO, C ^{[1
]}

PRIOLA, A ^{[1
]}

CESCA, S ^{[1
]}

机构：

[1] ASSORENI,SAN DONATO MILANESE,I-20097 MILAN,ITALY

来源：

MACROMOLECULES | 1979年 / 12卷 / 03期

关键词：

D O I：

10.1021/ma60069a012

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 structure of isobutylene (I)-butadiene (B) copolymers, obtained with a cationic catalyst, has been examined by 1H and 13C NMR spectroscopy. The spectra of these copolymers and their hydrogenated derivatives were investigated. From the assignment of these spectra, a detailed description has emerged of the sequence distribution of isobutylene and trans-1, 4- and 1, 2-butadiene units in the chain. The data for the triad fractions centered on isobutylene and trans-l, 4-butadiene units show that the monomeric units are distributed in an essentially block manner. The great complexity of the I-B system does not allow us to describe it by the two-component copolymerization model. © 1979, American Chemical Society. All rights reserved.

引用

页码：411 / 418

页数：8

共 21 条

[1]

CESCA S, 1979, ADV POLYM SCI, V32, P1

[2] C-13 NUCLEAR MAGNETIC-RESONANCE SPECTROSCOPY OF POLYDIENES, MICROSTRUCTURE OF POLYBUTADIENE [J].