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
收藏
页码：8372 / 8380
页数：9
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