表面活性剂对超支化温敏聚合物温敏性质的影响  

Effect of Surfactants on Thermoresponsive Property of Hyperbranched Thermoresponsive Polymers

作　　者：李慧东 刘毅[1] 张继凡 霍克丰 顾俊琪 周瑶 刘训恿[1] LI Huidong;LIU Yi;ZHANG Jifan;HUO Kefeng;GU Junqi;ZHOU Yao;LIU Xunyong(School of Chemistry and Materials Science,Ludong University,Yantai 264039,China)

机构地区：[1]鲁东大学化学与材料科学学院,山东烟台264039

出　　处：《鲁东大学学报（自然科学版）》2024年第2期150-158,共9页Journal of Ludong University:Natural Science Edition

基　　金：国家自然科学基金项目(52073134);山东省自然科学基金项目(ZR2023MB024)。

摘　　要：针对黄河三角洲污染土壤治理而伴随产生大量表面活性剂废水的问题,拟制备以超支化聚乙烯亚胺(HPEI)为核异丁酰基(IBAm)为壳的超支化温敏聚合物,并探究表面活性剂对其浊点的影响规律,为基于超支化温敏聚合物温敏特性分离表面活性剂提供理论依据。本文详细研究了聚合物浓度、表面活性剂种类及浓度对其水溶液浊点(CP)的影响。结果表明,随着聚合物质量浓度从1 mg·mL^(-1)增大至16 mg·mL^(-1),其溶液CP降低16℃。除十二烷基苯磺酸钠外,HPEI-IBAm的水溶液与不同种类的表面活性剂相互作用均导致溶液浊点随表面活性剂浓度的增加而升高29~58℃。综上所述,不同种类、浓度的表面活性剂可调节温敏聚合物的浊点变化,通过探究其作用规律,为开发利用超支化温敏聚合物分离表面活性剂的方法奠定基础。In order to deal with the problem of producing a large amount of surfactant wastewater in the treatment of polluted soil in the Yellow River Delta,a hyperbranched thermosensitive polymer with hyperbranched polyethylenimide(HPEI)as the core and isobutyryl(IBAm)as the shell was prepared,and the influence law of surfactant on its cloud point was explored to provide a theoretical basis for the separation of surfactant based on the thermosensitive properties of hyperbranched thermosensitive polymers.In this study,the effects of polymer concentration and surfactant type and concentration on the cloud point(CP)of their aqueous solutions were investigated in detail.The results showed that the CP of its solution decreased by 16℃ as the polymer concentration increased from 1 mg·mL^(-1) to 16 mg·mL^(-1).Except for sodium dodecyl benzene sulfonate,the interaction between HPEI-IBAm aqueous solution and different kinds of surfactants resulted in the cloud point of the solution increasing by 29~58℃ with the increase of surfactant concentration.In summary,different types and concentrations of surfactants can regulate the change of CP of thermoresponsive polymers,and by exploring the law of their action can lay the foundation for the development of a method for separating surfactants using hyperbranched thermoresponsive polymers.

关 键 词：黄河三角洲 超支化聚乙烯亚胺 温敏 表面活性剂 浊点 

分 类 号：O632.6[理学—高分子化学]