双亲性聚合物调理剂在护发素中的应用研究  

Research on the amphiphilic polymer applied in hair conditioner

作　　者：秦志昂 张云 刘冬 曹玉华 Zhiang Qin;Yun Zhang;Dong Liu;Yuhua Cao(School of Chemical and Material Engineering,Jiangnan University,Wuxi,Jiangsu 214122,China;Greenleaf Sci&Tech Group,Suzhou,Jiangsu 215151,China)

机构地区：[1]江南大学化学与材料工程学院,江苏无锡214122 [2]苏州绿叶日用品有限公司,江苏苏州215151

出　　处：《日用化学工业》2022年第2期152-158,共7页China Surfactant Detergent & Cosmetics

摘　　要：研究了双亲性聚合物作为调理剂成分在无硅油护发素中的应用。以溶液自由基聚合法合成了双亲性无规聚合物聚(苯乙烯-co-丙烯酸)。利用阳离子表面活性剂山嵛基三甲基氯化铵与聚合物之间的阳离子-π电子作用,将双亲性无规共聚物聚(苯乙烯-co-丙烯酸)吸附到头发表面起到顺滑作用。通过调节聚合物中苯环与山嵛基三甲基氯化铵的摩尔比、山嵛基三甲基氯化铵的浓度以及使用量,制备具有优异梳理性能的护发素,对护发素效果进行评价,并与含硅护发素进行比较。结果表明:最优条件下,双亲性聚合物在头发上的残留量为102μg/g头发;在护发素中添加双亲聚合物后能够显著改善湿梳理性能,其湿梳性优于市售含硅护发素;经护发素处理后的头发毛鳞片规整、无翘起,且双亲聚合物在头发上无累积效应。The amphiphilic polymer was used as a conditioner in a silicone-free hair conditioner.The amphiphilic random copolymer poly (styreneco-acrylic acid) was synthesized by free radical polymerization.Through the cation-πelectron interaction between the cationic surfactant behenyl trimethyl ammonium chloride and the benzene ring in the copolymer,the amphiphilic random copolymer poly (styrene-co-acrylic acid) would be adsorbed on the hair surface to give more smoothness to hair.The hair conditioner with excellent combing performance was prepared by adjusting the molar ratio of styrene in poly (styrene-co-acrylic acid) to behenyl trimethyl ammonium chloride,the concentration of behenyl trimethyl ammonium chloride as well as the dosage.The prepared conditioner was evaluated and compared with silicone conditioner.The results show that,the amphiphilic random polymer poly(styrene-co-acrylic acid) is successfully synthesized;the molecular weight of the polymer is 11 824 and the polydispersity coefficient is1.67;the optimized molar ratio is close to the feeding ratio of 7∶3.The residual amount of the amphiphilic polymer on the hair is positively correlated with the viscosity of the compound solution,i.e.,the greater the viscosity of the compound solution,the greater the cation-πelectron interaction,and thus the more easily the amphiphilic polymer would stay on the hair surface.The optimized conditions are as follows:the usage amount of BTAC is 1 mL;the mass fraction is 2.0%;the molar ratio is 1.2.Under this condition,the residual amount of the amphiphilic polymer on the hair is 102μg/g hair.The analysis of the significant difference in the maximum friction force and the combing work show that the wet combing performance is significantly improved by adding the amphiphilic polymer into the hair conditioner,and the wet combing performance of the self-made conditioner is better than that of the commercially available silicone-containing conditioners.SEM images show that the hair scales after treatment with the prepared condi

关 键 词：双亲性聚合物 阳离子-π电子作用 护发素 

分 类 号：TQ658[化学工程—精细化工]