FORMATION OF MOLECULAR COMPOSITES THROUGH HYDROGEN-BONDING INTERACTIONS

被引：62

作者：

PAINTER, PC

TANG, WL

GRAF, JF

THOMSON, B

COLEMAN, MM

机构：

[1] Department of Materials Science and Engineering, The Pennsylvania State University, Pennsylvania 16802, University Park

来源：

MACROMOLECULES | 1991年 / 24卷 / 13期

关键词：

D O I：

10.1021/ma00013a029

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 phase behavior of blends of poly(glutamates) (PMLG, PELG, and PBLG) with poly(vinylphenol) (PVPh) has been investigated by using FTIR and optical microscopy. The former polymers are alpha-helical rigid rods with flexible side chains and the latter is a random-coil polymer. The equilibrium number of hydrogen bond interactions was found between the side-chain esters of PMLG, PELG, and the OH group of PVPh in blends of these polymers but not found between PBLG and PVPh, indicating that this latter system is phase separated. The results of polarizing microscope observations demonstrated that at high rigid-rod concentrations the miscible blends displayed anisotropy. An association model has been applied to obtain a theoretical phase diagram for these systems.

引用

页码：3929 / 3936

页数：8

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