XE-129 NMR AS A PROBE OF POLYMER BLENDS

被引：39

作者：

WALTON, JH ^{[1
]}

MILLER, JB ^{[1
]}

ROLAND, CM ^{[1
]}

机构：

[1] USN,RES LAB,DIV CHEM,WASHINGTON,DC 20375

来源：

JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS | 1992年 / 30卷 / 06期

关键词：

NUCLEAR MAGNETIC RESONANCE (NMR) WITH XE-129 AS PROBE OF POLYMER BLENDS; BLENDS; XE-129 AS NMR PROBE OF; RUBBERY POLYMER BLENDS;

D O I：

10.1002/polb.1992.090300602

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 miscibility of two-component polymer blends has been investigated using xenon-129 (Xe-129) nuclear magnetic resonance (NMR) to probe the phase morphology. The chemical shift of Xe-129 dissolved in a given polymer is unique, thus heterogeneous blends with large domain sizes exhibit two Xe-129 NMR lines. When a single resonance is obtained, the data are consistent with miscibility, yielding an upper bound on the domain size. The temperature dependence of the relative solubilities and chemical shifts of Xe-129 dissolved in the pure components may allow a determination of the phase morphology in blends exhibiting a single resonance. The method is used to demonstrate that polychloroprene and 25% epoxidized 1,4-polyisoprene form a miscible blend.

引用

页码：527 / 532

页数：6

共 42 条

[1] THEORY OF NUCLEAR MAGNETIC RESONANCE CHEMICAL SHIFT OF XE IN XENON GAS [J].