HIGH-RESOLUTION C-13 NUCLEAR MAGNETIC-RESONANCE STUDIES OF POLYMERS IN THE SOLID-STATE - AROMATIC POLYESTERS

被引：101

作者：

FYFE, CA ^{[1
]}

LYERLA, JR ^{[1
]}

VOLKSEN, W ^{[1
]}

YANNONI, CS ^{[1
]}

机构：

[1] IBM CORP,RES LAB,SAN JOSE,CA 95193

来源：

MACROMOLECULES | 1979年 / 12卷 / 04期

关键词：

D O I：

10.1021/ma60070a044

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

High-resolution 13C NMR spectra have been obtained for the insoluble, highly crystalline homopolymer of p-hydroxybenzoic acid, two methoxy derivatives of this polymer, and two copolymers with biphenylene terephthalate by use of proton dipolar decoupling, magic-angle spinning, and 13C crosspolarization techniques. Resolution is sufficient that the majority of carbons in the homopolymer repeat units appear as individual resonance lines. The widths of resonance lines (⪕15Hz) are 3-6 times more narrow than those obtained for glassy polymers—a result which is attributed to both the rigidity of these aromatic polyesters and the homogeneous local environment associated with crystal habit. © 1979, American Chemical Society. All rights reserved.

引用

页码：757 / 761

页数：5

共 13 条

[1]

ANDREW ER, 1976, MTP INT REV SCI 2, V4, P173

[2] OBSERVATIONS IN SOLID POLYETHYLENES BY C-13 NUCLEAR MAGNETIC-RESONANCE WITH MAGIC ANGLE SAMPLE SPINNING [J].