Studies on the particle morphology of waterborne cationic polyurethane/polyacrylate microemulsions

被引：3

作者：

Zhang, Hong ^{[1
]}

Pan, Hongxia ^{[1
]}

Zhang, Qinghua ^{[1
]}

Chen, Dajun ^{[1
]}

机构：

[1] Donghua Univ, Coll Mat Sci & Engn, State Key Lab Modificat Chem Fibers & Polymer Mat, Shanghai 200051, Peoples R China

来源：

JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY | 2006年 / 43卷 / 11期

关键词：

polyurethane; cationomers; compound emulsions; shell-core structure; invert" shell-core structure; irregular" sandwich structure;

D O I：

10.1080/10601320600939759

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Polyurethane containing tertiary nitrogen atoms was synthesized from polyol, diphenylmethane diisoccyanate (MDI) and N-methyl diethanolamine. The polymer was converted into cationomers by quarternizing with methacrylic acid (MAA) and then dispersed in water. In this reaction, methyl methacrylate (MMA) was used to decrease viscosity; at the same time, it was the monomer in the later reaction. Finally the cationic polyurethane dispersions were further polymerized with an oil-soluble initiator, azobisisobutyronitrile ( AIBN), water-soluble initiator, K2S2O8 (KPS) and the mixture of AIBN and KPS. The different emulsion particles with shell-core structure, "invert" shell-core structure and "irregular" sandwich structure were obtained; the morphological structures were characterized by TEM observation, FT-IR and particle size analysis.

引用

页码：1793 / 1800

页数：8

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