ITSTUDIES ON THE EFFECT OF UREA ON THE COMPATIBILITY OF PMMA/PVC MIXTURES IN DMF BY A DILUTE- SOLUTION VISCOMETRY METHOD

作     者：RajaiBaraka JamilK.J.Salem HaniHilles OmarMelad 

作者机构：Al-Azhar University Department of Chemistry P.O Box 1277 GAZA PA Via IsraelAl-Azhar University Department of Chemistry P.O Box 1277 GAZA PA Via IsraelAl-Azhar University Department of Chemistry P.O Box 1277 GAZA PA Via IsraelAl-Azhar University Department of Chemistry P.O Box 1277 GAZA PA Via Israel 

出 版 物：《Chinese Journal of Polymer Science》 (高分子科学（英文版）)

年 卷 期：2002年第20卷第5期

页      面：467-472页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

主　　题：Urea addition Polymer blend compatibility Intrinsic viscosity and dilute solution viscometry method 

摘      要：The interaction between poly(methymethacrylate) (PMMA) and poly(vinyl chloride) (PVC) has been studied indilute urea solutions of dimethylformamide (DMF) at 28℃ using a dilute solution viscometry method. The results show thatthe polymer mixtures are compatible in DMF solution in the absence of urea. The influence of urea addition on the degree ofcompatibility of the polymer mixtures has been studied in terms of the compatibility parameters (△b_m and △[η]_m). It wasfound that the compatibility of the polymer mixtures is decreased with increasing urea addition, passing through a minimumat 0.5 M urea.