新型对称性两亲含硅聚合物的合成与界面性能

doi:10.13218/j.cnki.csdc.2018.10.005

日用化学工业 ›› 2018, Vol. 48 ›› Issue (10): 571-576.doi: 10.13218/j.cnki.csdc.2018.10.005

新型对称性两亲含硅聚合物的合成与界面性能

薛丹丹¹,李一菲²,张剑¹,郝俊生¹,黄鑫¹,张越¹

1.山西大学化学化工学院精细化学品研究中心,山西太原 030006;
2.太原科技大学环境科学研究所,山西太原 030024

出版日期:2018-10-20 发布日期:2019-03-18
通讯作者: 张越,副教授,电话:18636868303,E-mail:zyue@sxu.edu.cn。
作者简介:薛丹丹(1991-),女,河南人,硕士研究生,电话:15735176487,E-mail:1286372295@qq.com。
基金资助:
太原科技大学博士启动项目资助(No.20142042);山西省煤基重点科技攻关项目资助(MJH2014-12);国家自然科学基金资助项目(No.21673132)

Synthesis and interfacial properties of novel symmetric amphiphilic silicon-containing polymers

XUE Dan-dan¹,LI Yi-fei²,ZHANG Jian¹,HAO Jun-sheng¹,HUANG Xin¹,ZHANG Yue¹

1.Engineering Research Center of Ministry of Education for Fine Chemicals,College of Chemistry and Chemical Engineering,Shanxi University,Taiyuan,Shanxi 030006,China;
2.Institute of Environmental Science,Taiyuan University of Science and Technology,Taiyuan,Shanxi 030024,China

Online:2018-10-20 Published:2019-03-18

摘要/Abstract

摘要： 基于原子转移自由基聚合(ATRP)机理,以二甲基一氯硅烷封端的烯丙基-聚乙二醇为起始剂,甲基丙烯酸乙酯(EMA)为单体,通过控制反应温度,合成了一系列聚合度(DP_NMR)分别为0.74,1.67和3.07的新型对称性两亲含硅共聚物(PEMA-b-Si-PEG-Si-b-PEMA),并评价了该共聚物在氯仿/水界面的界面活性和吸附行为。结果表明:该类聚合物可以有效降低氯仿/水界面张力,具有最短PEMA链的聚合物可将氯仿/水界面张力从32 mN/m降低至约23 mN/m。动态界面张力分析表明:低浓度的共聚物在吸附的初始阶段符合扩散控制,且较短的PEMA链段有利于产生较快的扩散速率。平衡界面张力分析表明:随着界面浓度的增加,共聚物将表现出多种吸附状态,其吸附状态的数量以及聚合物在界面的偏摩尔面积将随着PEMA链长度的增加而增加。

关键词: 两亲, 界面张力, 合成

Abstract: A series of novel symmetric amphiphilic silicon-containing polymers (PEMA-b-Si- PEG-Si-b-PEMA) were prepared by atom transfer radical polymerization (ATRP),which was achieved by the polymerization of ethyl methacrylate (EMA) with dimethylchlorosilane-terminated allyl-substituted poly(ethylene glycol).The DP_NMRwas 0.74,1.67 and 3.07 as controlled by the reaction temperature.The interfacial activity and adsorption behavior of the polymers at chloroform-water interface were evaluated.The results show that the polymers can effectively reduce the chloroform-water interfacial tension,and the polymer with the shortest PEMA chain can reduce the chloroform-water interfacial tension from 32 mN/m to approximately 23 mN/m.The analysis of dynamic interfacial tension indicates that the adsorption at the initial stage is diffusion-controlled at lower concentrations of the polymer,and the shorter PEMA chain facilitates a faster diffusion rate.Equilibrium adsorption analysis reveals that the polymer exhibits various adsorption states as the interface coverage is increased,and the number of adsorption states and the range of partial molar area increase with the increase of PEMA chain length.

Key words: amphiphilic, interfacial tension, synthesis

中图分类号:

O631

薛丹丹,李一菲,张剑,郝俊生,黄鑫,张越. 新型对称性两亲含硅聚合物的合成与界面性能[J]. 日用化学工业, 2018, 48(10): 571-576.

XUE Dan-dan,LI Yi-fei,ZHANG Jian,HAO Jun-sheng,HUANG Xin,ZHANG Yue. Synthesis and interfacial properties of novel symmetric amphiphilic silicon-containing polymers[J]. China Surfactant Detergent & Cosmetics, 2018, 48(10): 571-576.

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新型对称性两亲含硅聚合物的合成与界面性能

Synthesis and interfacial properties of novel symmetric amphiphilic silicon-containing polymers

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