文章摘要
钱涛,钟毅,毛志平,徐红,张琳萍,隋晓锋,王碧佳.梳状改性苯乙烯-马来酸酐共聚物制备与性能[J].精细化工,2019,36(5):
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 Copolymer
投稿时间:2018-09-03  修订日期:2018-12-24
DOI:
中文关键词: SMA  改性  支链  性能
英文关键词: SMA  modification  branched chain  properties
基金项目:国家重点研发计划资助(2017YFB0309700)
作者单位E-mail
钱涛 1.东华大学 生态纺织教育部重点实验室上海 2016202.东华大学 纺织科技创新中心上海 201620 1294766803@qq.com 
钟毅 1.东华大学 生态纺织教育部重点实验室上海 2016202.东华大学 纺织科技创新中心上海 201620 zhongyi@dhu.edu.cn 
毛志平 1.东华大学 生态纺织教育部重点实验室上海 2016202.东华大学 纺织科技创新中心上海 201620  
徐红 1.东华大学 生态纺织教育部重点实验室上海 2016202.东华大学 纺织科技创新中心上海 201620  
张琳萍 1.东华大学 生态纺织教育部重点实验室上海 2016202.东华大学 纺织科技创新中心上海 201620  
隋晓锋 1.东华大学 生态纺织教育部重点实验室上海 2016202.东华大学 纺织科技创新中心上海 201620  
王碧佳 1.东华大学 生态纺织教育部重点实验室上海 2016202.东华大学 纺织科技创新中心上海 201620  
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中文摘要:
      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的摩尔比为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)的摩尔比为0.5:1,含固量30%,反应时间2 h,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,结果表明了此类助剂结构可调,其分散作用以及乳化作用与结构紧密相关。
英文摘要:
      The active branched chain (IP550) with primary amine was synthesized by isatoic anhydride (IA) and methoxypolyethylene glycols550 (MPEG550). The comb-like modified polymer surfactant (SMA-IP550) was prepared by amidation reaction between styrene-maleic anhydride copolymer (SMA) and IP550. The synthesis process of products was investigated and the chemical structure of SMA-IP550 was characterized by FTIR and 1HNMR. The results showed that the IP550 with 79.3% yield were achieved when the conditions were controlled as the amount of catalyst(4-dimethylaminopyridine) 0.9% based on the total mass of reactants, the molar ratio of IA to MPEG550 1:1, reaction temperature 120℃ and reaction time 30 min. The modified SMA(SMA-IP550) with 42.5% grafting yield was obtained when the temperature was 140℃, the molar ratio of IP550 to MA was 0.5:1, the solid content was 30% and the reaction time was 2 h. By comparing the dispersion, viscosity reduction, emulsification and wettability of modified SMA with different branched-chain lengths, the results showed that the structure of comb-like modified styrene-maleic anhydride copolymer can be adjusted, which was closely related to the emulsification and dispersion.
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