Determination of orientational order in deformed glassy PMMA from solid-state NMR data

被引：13

作者：

Wendlandt, M ^{[1
]}

van Beek, JD ^{[1
]}

Suter, UW ^{[1
]}

Meier, BH ^{[1
]}

机构：

[1] ETH, Dept Mat, CH-8093 Zurich, Switzerland

来源：

MACROMOLECULES | 2005年 / 38卷 / 20期

关键词：

D O I：

10.1021/ma0512105

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The orientational distribution function for polymer chain segments in plain-strain compressed glassy poly(methyl methacrylate) is evaluated, as a function of two polar angles, from a series of one-dimensional deuterium NMR spectra. The experimental data are analyzed using a tailored regulatory approach. For low degrees of orientational order, the choice of the regularization scheme is shown to become critical and two-dimensional Tikhonov-Phillips regularization yielded the best results for the present study.

引用

页码：8372 / 8380

页数：9

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