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
李慧东 1刘毅 1张继凡 1霍克丰 1顾俊琪 1周瑶 1刘训恿1
作者信息
- 1. 鲁东大学 化学与材料科学学院,山东烟台 264039
- 折叠
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.
Abstract
In order to deal with the problem of producing a large amount of surfactant wastewater in the treat-ment 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 poly-mer 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 ex-ploring 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Key words
the Yellow River Delta/hyperbranched polyethyleneimine/thermosensitive/surfactant/cloud point引用本文复制引用
基金项目
国家自然科学基金(52073134)
山东省自然科学基金(ZR2023MB024)
出版年
2024
NETL
NSTL
万方数据