| 疏水改性聚丙烯酸乙二醇/水溶液的流变特性 |
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| 引用本文： | 梅拥军,周洪,王航,谢麟. 疏水改性聚丙烯酸乙二醇/水溶液的流变特性[J]. 四川大学学报(工程科学版), 2009, 41(1) |
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| 作者姓名： | 梅拥军 周洪 王航 谢麟 |
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| 作者单位： | 中国民航总局第二研究所 |
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| 摘 要： | 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。
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| 关 键 词： | 疏水缔合 聚丙烯酸 表面活性剂 流变 乙二醇 |
The Rheology Behavior of Hydrophobically Modified Poly (acrylic acid)in Ethylene Glycol-water Mixture |
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| MEI Yong-jun,ZHOU Hong,WANG Hang,XIE Lin. The Rheology Behavior of Hydrophobically Modified Poly (acrylic acid)in Ethylene Glycol-water Mixture[J]. Journal of Sichuan University (Engineering Science Edition), 2009, 41(1) |
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| Authors: | MEI Yong-jun ZHOU Hong WANG Hang XIE Lin |
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| Abstract: | Hydrophobically modified polyacrylic acid(HMPA) was synthesized by the precipitation polymerization.HMPA in ethylene glycol-water mixture showed 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 the change of the number and strength of hydrophobic junctions and lead to the 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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| Keywords: | association poly(acrylic acid) rheology ethylene glycol surfactant |
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