Interpolymer xanthane-gelantine complexes

被引：8
|
作者：
Popa, M
Alupei, IC
Bucevschi, MD
机构：
[1] Univ Tech Gh Asachi Iasi, Fac Chim Ind, Chaire Macromol, Iasi 6600, Romania
[2] Univ Med & Pharm Gr T Popa, Fac Bioengn Med, Iasi 6600, Romania
[3] Univ Tech Gh Asachi Iasi, Fac Text, Iasi 6600, Romania
来源：
EUROPEAN POLYMER JOURNAL | 2001年 / 37卷 / 06期
关键词：
xanthan; gelatine; compatibility; interpolymer complexes; Huggins constant;
D O I：
10.1016/S0014-3057(00)00245-7
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 paper deals with the study of the compatibility in diluted solution of two natural polymers possessing a polyelectrolyte character - xanthan and gelatine. The influence of the pH, temperature and weight ratio of the polymers on the compatibility was investigated. The estimation of the compatibility and the nature of the polymer interactions was made by means of viscometric measurements and Huggins constants. It was found that, depending on the pH of the system, the performed interpolymer bonds may be of a ionic (between functional groups) or physical nature. When the pH < 4, the phase separation takes place. For the mixture which does not possess phase separation, the nature of the polymer interactions is influenced by temperature and weight ratio of the polymers. (C) 2001 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：1239 / 1245
页数：7
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