Visualization of residual anisotropic interactions in crosslinked natural rubbers by dipolar local field measurements and H-2 natural abundance NMR spectroscopy

被引：27

作者：

Malveau, C ^{[1
]}

Tekely, P ^{[1
]}

Canet, D ^{[1
]}

机构：

[1] UNIV NANCY 1,LAB METHODOL RMN,CNRS,URA 406,LESOC,F-54506 VANDOEUVRE NANCY,FRANCE

来源：

SOLID STATE NUCLEAR MAGNETIC RESONANCE | 1997年 / 7卷 / 04期

关键词：

residual NMR interactions; dipolar local field; deuteron natural abundance NMR spectra; crosslinked elastomers; solid-state NMR;

D O I：

10.1016/S0926-2040(96)01282-9

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

An extension of the exploitation of indirect observation of H-1 nuclei through C-13 resonances is presented in the case of crosslinked elastomers. It is demonstrated that, by using this method in vulcanized elastomers above T-g, a direct visualization of residual dipolar interactions on different functional groups as well as their dependence on motional constraints is available. It is also shown that H-2 natural abundance NMR spectra of elastomers provide similar information on motional constraints by way of residual quadrupolar interactions. (C) 1997 Elsevier Science B.V.

引用

页码：271 / 280

页数：10

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