Assignment of 13C NMR resonances to aliphatic carbon atoms of polybutadiene

被引：0

作者：

Khachaturov, AS ^{[1
]}

Ivanova, VP ^{[1
]}

Podkorytov, IS ^{[1
]}

Osetrova, LV ^{[1
]}

机构：

[1] SV Lebedev Synthet Rubber Res Inst, St Petersburg 198035, Russia

来源：

VYSOKOMOLEKULYARNYE SOEDINENIYA SERIYA A & SERIYA B | 1998年 / 40卷 / 06期

关键词：

D O I：

暂无

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

High-frequency (125 MHz) high-resolution C-13 NMR spectra of polybutadiene with varying amounts of 1,2 units were studied. Methine and methylene subspectra were separated using DEFT (Distortionless Enhancement by Polarization Transfer) techniques. Comparison of the NMR spectra of polyalkenamers, linear polybutadiene, and related structures made it possible to calculate the substituent parameters for the carbons that are up to four bonds away from the branching junction. The assignment of C-13 NMR resonances to aliphatic carbons incorporated into the diads or triads of 1,2 or 1,4-units was made.

引用

页码：964 / 969

页数：6

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