Structural characterization of drawn (ethylene-vinyl alcohol) copolymer by high-resolution solid-state 13C NMR

被引：2

作者：

Kurosu, H

Fukushima, K

Matsuo, M

Ando, I

Amiya, S

机构：

[1] Nara Womens Univ, Fac Human Life & Environm, Dept Text & Apparel Sci, Nara 630, Japan

[2] Tokyo Inst Technol, Dept Polymer Chem, Meguro Ku, Tokyo 152, Japan

[3] Kuraray Co Ltd, Analyt Res Ctr, Kurashiki, Okayama, Japan

来源：

JOURNAL OF MOLECULAR STRUCTURE | 2002年 / 602卷

关键词：

(ethylene-vinyl alcohol) copolymer; drawn EVOH; solid-state NMR; structure;

D O I：

10.1016/S0022-2860(01)00738-4

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

High-resolution solid-state C-13 NMR spectra of drawn (ethylene-vinyl alcohol) copolymer (EVOH) and their C-13 spin-lattice relaxation times (T-1) were measured in order to elucidate the structure and dynamics of EVOH in the drawn state. It is found that the C-13 chemical shift of the CH carbon for drawn EVOH moved upfield as compared with that of undrawn EVOH. Further, the mobility for the CH carbons of low molecular motion components are increased by drawing the EVOH sample. From these experimental results, the changes in the structure and dynamics of the drawn EVOH sample can be elucidated. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：233 / 237

页数：5

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