梳状改性苯乙烯-马来酸酐共聚物制备与性能  

Preparation and Properties of Comb-like Modified Styrene-Maleic Anhydride Copolymers

作　　者：钱涛 钟毅[1,2] 毛志平 徐红[3] 张琳萍 隋晓锋 王碧佳[1,2] QIAN Tao;ZHONG Yi;MAO Zhi-ping;XU Hong;ZHANG Lin-ping;SUI Xiao-feng;WANG Bi-jia(Key Laboratory of Ecological Textile, Donghua University, Shanghai 201620, China;Innovation Center for Textile Science and Technology, Donghua University, Shanghai 201620, China;Luthai Textile Co., Ltd, Zibo 255000, Shandong, China)

机构地区：[1]东华大学生态纺织教育部重点实验室,上海201620 [2]东华大学纺织科技创新中心,上海201620 [3]鲁泰纺织股份有限公司,山东淄博255000

出　　处：《精细化工》2019年第6期1021-1027,共7页Fine Chemicals

基　　金：国家重点研发计划资助(2017YFB0309700);泰山产业领军人才工程专项经费资助~~

摘　　要：以靛红酸酐(IA)与聚乙二醇单甲醚550(MPEG550)合成带有伯氨基的活性支链(IP550),并对苯乙烯-马来酸酐共聚物(SMA)进行酰胺化改性,制备出梳状改性SMA(SMA-IP550)。考察了产物的合成条件,并采用FTIR和~1HNMR对SMA-IP550的结构进行表征。结果表明:催化剂(4-二甲氨基吡啶)用量为反应物总质量的0.9%,MPEG550和IA的物质的量比为1∶1,反应温度120℃,反应时间30 min,活性支链IP550产率达79.3%;SMA改性温度为140℃,IP550与SMA中马来酸酐(MA)的物质的量比为0.5∶1,反应体系的固含量30%,反应时间2h,得到接枝率为42.5%的改性苯乙烯-马来酸酐共聚物(SMA-IP550)。通过对比不同长度活性支链改性SMA的分散、降黏、乳化和润湿性能,结果表明该类助剂结构可调,其分散作用以及乳化作用与结构紧密相关。An active branched chain(IP550) with a primary amino group was synthesized by isatoic anhydride(IA) and methoxypolyethylene glycols 550(MPEG550). An amidation reaction between styrene-maleic anhydride copolymer(SMA) and IP550 led to comb-like modified polymer surfactant(SMA-IP550). The synthesis conditions of IP550 and SMA-IP550 were investigated. The chemical structure of SMA-IP550 was characterized by FTIR and 1 HNMR. The results showed that when dosage of catalyst(4-dimethylaminopyridine) was 0.9% of the total mass of reactants, molar ratio of MPEG550 to IA was 1∶1, reaction temperature was 120 ℃, and reaction time was 30 min, the yield of IP550 reached79.3%. Modified SMA(SMA-IP550) with 42.5% grafting yield was obtained under the conditions of temperature 140 ℃, molar ratio of IP550 to MA 0.5∶1, solid content 30%, and reaction time 2 h. By comparing the dispersion, viscosity reduction, emulsification and wettability of modified SMA with different branched-chain lengths, it was found that the structure of comb-like modified styrene-maleic anhydride copolymer could be adjusted, and their dispersion and emulsification were closely related to their structure.

关 键 词：SMA 改性 支链 性能 

分 类 号：TS190.2[轻工技术与工程—纺织化学与染整工程]