Spectroscopic Studies of the Structures of Butyl and Bromobutyl Rubbers-Reference-Cited by-同舟云学术

Spectroscopic Studies of the Structures of Butyl and Bromobutyl Rubbers

Published:1990-05-01 Issue:2 Volume:63 Page:265-275
ISSN:1943-4804
Container-title:Rubber Chemistry and Technology
language:en
Short-container-title:

Author:

Cheng D. M.¹,Gardner I. J.¹,Wang H. C.¹,Frederick C. B.¹,Dekmezian A. H.¹,Hous P.²

Affiliation:

1. 1Exxon Chemical Co., Polymers Groups, P.O. Box 45, Linden, New Jersey 07036

2. 2Exxon Chemical International Co., Polymer Group, B-1920, Machelen, Belgium

Abstract

Abstract The 1H-NMR results show that the majority of the isoprene units of butyl rubber are incorporated in 1,4 addition. Approximately 6% of the isoprene units undergo 1,2 enchainment. Based on our study of blends of polyisoprene with polyisobutylene, 1H-NMR provides an excellent method for determining isoprene unsaturation in butyl rubber. Furthermore, based on 1H-NMR measurement, FTIR procedures have been developed to quantify the isoprene content of butyl polymers and the concentrations of the three major bromobutyl isomers.

Publisher

Rubber Division, ACS

Subject

Materials Chemistry,Polymers and Plastics

Link

http://meridian.allenpress.com/rct/article-pdf/63/2/265/1945142/1_3538257.pdf

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