High Solids Content, Soap-Free, Film-Forming Latexes Stabilized by Laponite Clay Platelets

被引：46

作者：

Bourgeat-Lami, Elodie ^{[1
]}

Guimaraes, Thiago Rodrigues ^{[3
]}

Pereira, Ana Maria Cenacchi ^{[1
]}

Alves, Gizelda Maria ^{[3
]}

Moreira, Jose Carlos ^{[3
]}

Putaux, Jean-Luc ^{[2
]}

dos Santos, Amilton Martins ^{[3
]}

机构：

[1] Univ Lyon 1, LCPP Grp, Lab Chim Catalyse Polymeres & Procedes C2P2, CPE Lyon,CNRS,UMR 5265, F-69616 Villeurbanne, France

[2] Univ Grenoble 1, CNRS, Ctr Rech Macromol Vegetales, F-38041 Grenoble, France

[3] Univ Sao Paulo, Lab Polymer, Dept Chem Engn, Lorena Engn Sch, BR-12602810 Lorena, SP, Brazil

来源：

MACROMOLECULAR RAPID COMMUNICATIONS | 2010年 / 31卷 / 21期

基金：

巴西圣保罗研究基金会;

关键词：

clay; emulsion polymerization; films; mechanical properties; nanocomposites; EMULSION POLYMERIZATION; NANOCOMPOSITES; PARTICLES; MONTMORILLONITE; COMPOSITE; COLLOIDS; MORPHOLOGY; SILICATE;

D O I：

10.1002/marc.201000305

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

High solids content film-forming poly[styrene-co-(n-butyl acrylate)] [poly(Sty-co-BuA)] latexes armored with Laponite clay platelets have been synthesized by soap-free emulsion copolymerization of styrene and n-butyl acrylate. The polymerizations were performed in batch in the presence of Laponite and a methyl ether acrylateterminated poly(ethylene glycol) macromonomer in order to promote polymer/clay association. The overall polymerization kinetics showed a pronounced effect of clay on nucleation and stabilization of the latex particles. Cryo-transmission electron microscopy observation confirmed the armored morphology and indicated that the majority of Laponite platelets were located at the particle surface. The resulting nanostructured films displayed enhanced mechanical properties.

引用

页码：1874 / 1880

页数：7

共 48 条

[1] Synthesis and characterization of novel film-forming vinyl polymer/silica colloidal nanocomposites [J].