Polystyrene/melamine-formaldehyde hollow microsphere composite by self-assembling of latex particles at emulsion droplet interface

被引：53

作者：

He, XD ^{[1
]}

Ge, XWW ^{[1
]}

Wang, MZ ^{[1
]}

Zhang, ZC ^{[1
]}

机构：

[1] Univ Sci & Technol China, Dept Polymer Sci & Engn, Anhua 230026, Peoples R China

来源：

POLYMER | 2005年 / 46卷 / 18期

关键词：

hollow microsphere composite; latex particles self-assembly; emulsion droplet interface;

D O I：

10.1016/j.polymer.2005.06.015

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Submicron scale particle aggregates with defined shape were prepared by self-assembling of sulphonated polystyrene latex particles Lit the interface of emulsion droplets. Several parameters were considered during the preparation, including the sulphonation time of the polystyrene latex particles, the composition of the oil phase, and the zeta potential of the sulphonated latex particle. To further improve the mechanical stability of the particle aggregates, a hard composite layer was formed by addition of melamine-formaldehyde (MF) prepolymer into the emulsion. The prepolymer was crosslinked onto the particles surface Of sulphonated PS particle aggregates. The crosslinking reaction was catalysed by the acidity of sulfogroup. After evaporating off solvent, PS/MF hollow microsphere composites were obtained as mechanically stable dry material. The hollow microsphere composite was characterized by TGA, FTIR. optical microscopy, scanning and transmission electron microscopy. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：7598 / 7604

页数：7

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