疏水改性聚丙烯酸乙二醇/水溶液的流变特性研究

Study on the rheology behavior of hydrophobically modified poly (acrylic acid) in ethylene glycol-water mixture

作者：梅拥军(中国民航局第二研究所)；周洪(中国民航总局第二研究所四川成都 610041)；王航(中国民航总局第二研究所四川成都 610041)

Author：Mei Yongjun()；周洪(The Second Research Inst. of CAAC, Chengdu 610041 , China)；王航(The Second Research Inst. of CAAC, Chengdu 610041 , China)

收稿日期：2008-08-28 年卷（期）页码：2009,41(1):102-105

期刊名称：工程科学与技术

Journal Name：Advanced Engineering Sciences

关键字：疏水缔合；聚丙烯酸；表面活性剂；流变; 乙二醇

Key words：association; poly (acrylic acid); rheology; ethylene glycol；surfactant

基金项目：国家自然科学基金

中文摘要

本文通过沉淀聚合制备了疏水改性聚丙烯酸（HMPA），采用粘度法和流变学法研究了HMPA乙二醇/水溶液的疏水缔合行为和流变特性。研究表明：混合溶剂中乙二醇比例的变化明显影响HMPA溶液的流变行为。HMPA在乙二醇/水溶液中具有典型的剪切变稀行为。乙二醇在混合溶剂中比例的增加，HMPA的缔合行为受到抑制。表面活性剂分子TX-10与HMPA疏水侧链相互作用，在低浓度下促进网络结构的构建，增加体系粘度；在高浓度下诱导疏水基团解缔合。温度降低, HMPA乙二醇/水溶液中仍保持有效的网络结构。

英文摘要

Hydrophobically modified polyacrylic acids (HMPA) was synthesized by precipitation polymerization. HMPA in ethylene glycol-water mixture show typical shear thinning behavior. It was found that the solvent have a direct impact on the rheology behavior of HMPA in ethylene glycol-water mixture, due to the changes in hydrophobic associations. Surfactant TX-10 induced factors that change the number and strength of hydrophobic junctions and lead to change of solution visicosity. The transient associative network of HMPA in ethylene glycol-water mixture was kept as the temperature decreases.

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论文摘要

疏水改性聚丙烯酸乙二醇/水溶液的流变特性研究

Study on the rheology behavior of hydrophobically modified poly (acrylic acid) in ethylene glycol-water mixture