Solution and solid state nuclear magnetic resonance investigation of poly(methylmethacrylate)/poly(ethylene oxide) blends

被引：4

作者：

Diniz, TMFF ^{[1
]}

Tavares, MIB ^{[1
]}

机构：

[1] Univ Fed Rio de Janeiro, IMA, Ctr Technol, Rio De Janeiro, Brazil

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 2003年 / 90卷 / 11期

关键词：

poly(methylmethacrylate); poly(ethylene oxide); nuclear magnetic resonance; blends compatibility;

D O I：

10.1002/app.13004

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

It is well known that nuclear magnetic resonance spectroscopy (NMR) is a powerful method to characterize blends compatibility at the molecular level. In this work binary blends formed by poly(methylmethacrylate)/ poly(ethylene oxide), PMMA/PEO, were investigated by different solution and solid state NMR techniques to obtain information on blends homogeneity and compatibility. It was characterized that the values of T(1)(H)rho obtained by variable contact time and delayed contact time experiments, for each composition, were distinct and this fact suggests that regions with different molecular mobilities exist, as a consequence of blending interaction. (C) 2003 Wiley Periodicals, Inc.

引用

页码：2955 / 2958

页数：4