EFFECT OF HIGH HYDROSTATIC-PRESSURE ON THE PHENYLENE MOTION IN POLYCARBONATE AS REVEALED BY H-2 SPIN-LATTICE RELAXATION

被引：19

作者：

HANSEN, MT

KULIK, AS

PRINS, KO

SPIESS, HW

机构：

[1] MAX PLANCK INST POLYMER RES,POSTFACH 3148,W-6500 MAINZ,GERMANY

[2] UNIV AMSTERDAM,VAN DER WAALS ZEEMAN LAB,1018 XE AMSTERDAM,NETHERLANDS

来源：

POLYMER | 1992年 / 33卷 / 10期

关键词：

POLYCARBONATE; MOLECULAR MOTIONS; H-2; NMR; HIGH PRESSURE;

D O I：

10.1016/0032-3861(92)90897-6

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 temperature dependence of the deuteron n.m.r. spin-lattice relaxation time of polycarbonate was measured as a function of hydrostatic pressure, which causes a denser packing of the polymer. Observed activation volumes and activation energies illustrate the marked density dependence of the amplitude of phenylene motions.

引用

页码：2231 / 2233

页数：3

共 20 条

[1]

ABRAGAM A, 1961, PRINCIPLES NUCLEAR M

[2]

CARLOWITZ B, 1986, KUNSTSTOFF TABELLEN, P76

[3]

HANSEN MT, 1991, THESIS U MAINZ

[4]

HANSEN MT, IN PRESS MACROMOLECU