CO_(2)敏感高分子表面活性剂聚酯丙烯酰胺的制备及性能  

Preparation and properties of polyester acrylamide as a CO_(2)-sensitive polymer surfactant

作　　者：杜佳妮 张策 刘银萍 陈玮琦 刘瑞珺 侯飞帆 张光华[1] DU Jiani;ZHANG Ce;LIU Yinping;CHEN Weiqi;LIU Ruijun;HOU Feifan;ZHANG Guanghua(Shaanxi Key Laboratory of Chemical Additives for Industry,Shaanxi University of Science and Technology,Xi’an 710021,China)

机构地区：[1]陕西科技大学陕西省轻化工助剂重点实验室,陕西西安710021

出　　处：《应用化工》2025年第1期68-72,共5页Applied Chemical Industry

基　　金：国家自然科学基金(22172095);陕西省重点研发计划项目(2023-YBGY-324)。

摘　　要：以甲基丙烯酸二乙氨基乙酯(DEAEMA)和N-异丙基丙烯酰胺(NIPAM)为原料,合成一种对CO_(2)敏感的高分子表面活性剂聚(甲基丙烯酸二乙氨基乙酯和N-异丙基丙烯酰胺)[P(DEAEMA-NIPAM)],并制备P(DEAEMA-NIPAM)/液体石蜡乳液。通过红外、核磁、GPC对聚合物结构及分子量进行表征;采用电导率仪探究其合成溶液的CO_(2)响应性能,采用表面张力仪和流变仪分别探究在通入CO_(2)下P(DEAEMA-NIPAM)与反离子复配的表面张力和黏度,并探究制得乳液的乳化性能和CO_(2)开关性能。结果表明,当DEAEMA/NIPAM投料摩尔比为4∶1时产物最佳;合成的表面活性剂溶液对CO_(2)具有良好的响应性,其与反离子复配后能显著降低溶液表面张力,并大幅度提高体系的溶液黏度;P(DEAEMA-NIPAM)表面活性剂的水溶液可与液体石蜡油形成水包油型乳液,乳液的稳定性良好,且乳液对CO_(2)多次可逆响应。A CO_(2)-sensitive polymer surfactant poly(diethylaminoethyl methacrylate and N-isopropylacrylamide)[P(DEAEMA-NIPAM)]was synthesized to prepare P(DEAEMA-NIPAM)/liquid paraffin emulsion.Polymer structure and molecular weight were characterized by IR,NMR and GPC;the CO_(2)response properties of the synthesized solutions were investigated by a conductivity meter.A surface tension meter and a rheometer were used to investigate the surface tension and viscosity of the P(DEAEMA-NIPAM)complexed with the counterion under the passage of CO_(2),respectively,as well as the emulsification properties and CO_(2)-switching properties of the produced emulsions.The results showed that the best product was produced when the molar ratio of DEAEMA/NIPAM was 4∶1;the synthesized surfactant solutions showed good response to CO_(2),and their complexation with counterions significantly reduced the solution surface tension and substantially increased the solution viscosity of the system;the aqueous solution of P(DEAEMA-NIPAM)surfactant could form an oil-in-water type emulsion with liquid paraffin oil,and the stability of the emulsion was good,and its emulsion was reversible to CO_(2)several times.The stability of the emulsion was good and the emulsion was reversibly responsive to CO_(2)for many times.

关 键 词：CO_(2)响应性能 聚合物 乳化性能 开关型乳液 

分 类 号：TQ437[化学工程] TQ423