Determination of residual dipolar interaction from transverse 1H NMR relaxation in elastomers

被引：10

作者：

Hayashi, Shigenobu ^{[1
]}

Komori, Yoshihiko ^{[2
]}

机构：

[1] Natl Inst Adv Ind Sci & Technol, Res Inst Instrumentat Frontier, Tsukuba, Ibaraki 3058565, Japan

[2] Sumitomo Rubber Ind Ltd, Res & Dev HQ, Chuo Ku, Kobe, Hyogo 6510071, Japan

来源：

SOLID STATE NUCLEAR MAGNETIC RESONANCE | 2009年 / 36卷 / 04期

关键词：

Solid-state NMR; Elastomers; Residual dipolar coupling; Spin-spin relaxation; Spin-lattice relaxation; SPIN-LATTICE RELAXATION; NMR RELAXATION; DYNAMICS; LIQUID; TIMES;

D O I：

10.1016/j.ssnmr.2009.11.001

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：

The formula expressing the proton transverse magnetization decay for elastomers is reconsidered. It is improved by incorporating the relaxation contribution. The spin-spin relaxation times T-2 are estimated from spin-lattice relaxation times in the laboratory frame T-1 and spin-lattice relaxation times in the rotating frame T-1 rho measured at the low static magnetic field. The improved formula together with distributed residual dipolar couplings is applied to several samples of elastomers, and residual dipolar couplings are estimated. A good correlation between a swelling ratio and the residual dipolar coupling is obtained. (C) 2009 Elsevier Inc. All rights reserved.

引用

页码：167 / 171

页数：5

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