Calibration of 1H NMR spin diffusion coefficients for mobile polymers through transverse relaxation measurements

被引：138

作者：

Mellinger, F ^{[1
]}

Wilhelm, M ^{[1
]}

Spiess, HW ^{[1
]}

机构：

[1] Max Planck Inst Polymer Res, D-55021 Mainz, Germany

来源：

MACROMOLECULES | 1999年 / 32卷 / 14期

关键词：

D O I：

10.1021/ma9820265

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Solid-slate H-1 NMR spin diffusion experiments are useful tools for the elucidation of domain sizes of heterogeneous polymers. For quantitative determination of domain sizes, however, reliable values of the spin diffusion coefficients are required. In this paper, spin diffusion coefficients are calibrated for mobile polymers through the transverse relaxation rate T-2(-1) of H-1 magnetization measured by a Carr-Purcell-Meiboom-Gill sequence. Different regimes were observed fbr T-2(-1) below and above 1 kHz.

引用

页码：4686 / 4691

页数：6

共 26 条

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