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日用化学工业（中英文）

日用化学工业 ›› 2017, Vol. 47 ›› Issue (12): 663-667.doi: 10.13218/j.cnki.csdc.2017.12.001

• 基础研究 •    下一篇

含疏水侧链聚氨酯表面活性剂的制备及其乳液聚合应用研究

王媚媚1, 杨彦春1,3, 胡昕1,2,3, 彭化南1,2,3, 郑劼1,2,3   

  1. 1.上饶师范学院 化学与环境科学学院,江西 上饶 334001;
    2.上饶师范学院 江西省普通高校应用有机化学重点实验室,江西 上饶 334001;
    3.上饶师范学院 江西省靶向药物工程技术研究中心,江西 上饶 334001
  • 收稿日期:2017-08-18 发布日期:2019-03-21
  • 通讯作者: 郑 劼,副教授,博士,电话:(0793)8150637,E-mail:shinhwajay@hotmail.com。
  • 作者简介:王媚媚(1996-),女,江西赣州人,本科生,电话:(0793)8150637,E-mail:2738956489@qq.com。
  • 基金资助:
    江西省自然科学基金资助项目(20142BAB213017)

Preparation of polyurethane surfactants with hydrophobic side chains and their application in emulsion polymerization

WANG Mei-mei1, YANG Yan-chun1, 3, HU Xin1, 2, 3, PENG Hua-nan1, 2, 3, ZHENG Jie1, 2, 3   

  1. 1.College of Chemistry and Environmental Science,Shangrao Normal University,Shangrao,Jiangxi 334001,China;
    2.Key Laboratory of Applied Organic Chemistry,Higher Institutions of Jiangxi Province,Shangrao Normal University, Shangrao,Jiangxi 334001,China;
    3.Jiangxi Provincial Research Center of Targeting Pharmaceutical Engineering Technology,Shangrao Normal University,Shangrao,Jiangxi 334001,China
  • Received:2017-08-18 Published:2019-03-21

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摘要： 以异佛尔酮二异氰酸酯、二羟甲基丙酸和单硬脂酸甘油酯为主要原料,通过改变原料配比制备一系列含疏水侧链聚氨酯表面活性剂。采用FT-IR和1H NMR对产物的结构进行了表征。以单体质量5%的聚氨酯表面活性剂制备了固含量(质量分数)为35%的聚甲基丙烯酸甲酯-co-聚丙烯酸丁酯乳液,研究了预聚物n(-NCO)/n(-OH)对表面活性和乳液聚合应用的影响。结果表明,当预聚物n(-NCO)/n(-OH)=1.07时,含疏水侧链聚氨酯表面活性剂水溶液具有最低表面张力值33.24 mN/m。该聚氨酯表面活性剂用于制备聚丙烯酸酯乳液可得到核壳结构乳胶粒子,当预聚物n(-NCO)/n(-OH)=1.11时,制备得到的乳胶粒子最小,直径约为75 nm。

关键词: 聚氨酯表面活性剂, 疏水侧链, 乳液聚合

Abstract: A series of polyurethane surfactants with hydrophobic side chains (WPU) were synthesized by changing the ratio of the reactants and using isophorone diisocyanate,dimethylolpropionic acid and glyceryl monostearate as main starting materials.Structure of the product was characterized by FT-IR and 1H NMR.Poly-(methyl methacrylate-co-butyl acrylate) emulsion with 35% (mass fraction) solid content was prepared with the polyurethane surfactants (5% vs.mass of overall monomers).The effects on surface activity and emulsion polymerization application of the ratio n(-NCO)/n(-OH) of the pre-polymerized material were studied.Results show that the lowest surface tension of polyurethane solution achieves 33.24 mN/m when the ratio n(-NCO)/n(-OH) is 1.07.The structure of polyacrylate emulsion particulates prepared using polyurethane surfactants is shell-core type.When the ratio n(-NCO)/n(-OH) is 1.11,the smallest particulates can be obtained,and their diameter is about 75 nm.

Key words: polyurethane surfactant, hydrophobic side chain, emulsion polymerization

中图分类号: 

  • TQ423