Variable-temperature study of a gel-spun ultra-high molecular-mass polyethylene fiber by solid state NMR

被引：7

作者：

Cheng, JL ^{[1
]}

Fone, M ^{[1
]}

Fu, YG ^{[1
]}

Chen, W ^{[1
]}

机构：

[1] UNIV TENNESSEE,DEPT CHEM,KNOXVILLE,TN 37996

来源：

JOURNAL OF THERMAL ANALYSIS | 1996年 / 47卷 / 03期

关键词：

chain motion and conformation; mass fractions; polyethylene fiber; variable-temperature solid-state NMR; C-13; NMR; PHASE;

D O I：

10.1007/BF01981803

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Solid-state C-13 nuclear magnetic resonance (C-13 NMR) methods have been applied to study a gel-spun ultra-high molecular-mass polyethylene fiber. The mass fractions of the crystalline (orthorhombic and monoclinic), intermediate, and amorphous phases have been determined at temperatures between 296 and 413 K. The mobility of the polymer chains in the crystalline and the intermediate phases have been measured within the same temperature range, 296-413 K. Discussions on the chain conformation and the rate of motion are carried out based on the C-13 chemical shift and spin-lattice relaxation time, respectively.

引用

页码：673 / 683

页数：11

共 15 条

[1]

Adams WW., 1987, MRS Bull, V12, P22, DOI DOI 10.1557/S0883769400066707

[2] THE MORPHOLOGY OF GEL-SPUN POLYETHYLENE FIBERS, INVESTIGATED BY SOLID-STATE C-13 NMR [J].