LOCAL PACKING IN GLASSY POLYCARBONATE BY CARBON DEUTERIUM REDOR NMR

被引：42

作者：

SCHMIDT, A ^{[1
]}

KOWALEWSKI, T ^{[1
]}

SCHAEFER, J ^{[1
]}

机构：

[1] WASHINGTON UNIV,DEPT CHEM,ST LOUIS,MO 63130

来源：

MACROMOLECULES | 1993年 / 26卷 / 07期

关键词：

D O I：

10.1021/ma00059a036

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Carbon-deuterium internuclear dipolar couplings have been measured in a homogeneous mixture of 5% [carbonyl-C-13]polycarbonate and 95%, [methyl-d6]polycarbonate using rotational-echo double-resonance NMR. The observed C-13-H-2 couplings can be interpreted in terms of intermolecular distances. The distance from the carbonyl carbon of one polycarbonate chain to the average deuterium position of the closest methyl group of the nearest-neighbor polycarbonate chain is 3.8 angstrom.

引用

页码：1729 / 1733

页数：5

共 21 条

[1]

[Anonymous], 1979, SCALING CONCEPTS POL

[2] MEASUREMENT OF C-13-N-15 COUPLING BY DIPOLAR-ROTATIONAL SPIN-ECHO NMR [J].