日用化学工业2017，Vol.47Issue(12)：663-667,5.DOI:10.13218/j.cnki.csdc.2017.12.001
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
Preparation of polyurethane surfactants with hydrophobic side chains and their application in emulsion polymerization
摘要
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 1 H 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.关键词
聚氨酯表面活性剂/疏水侧链/乳液聚合Key words
polyurethane surfactant/hydrophobic side chain/emulsion polymerization分类
化学化工引用本文复制引用
王媚媚,杨彦春,胡昕,彭化南,郑劼..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[J].日用化学工业,2017,47(12):663-667,5.基金项目
江西省自然科学基金资助项目(20142BAB213017) （20142BAB213017）
