4.6 Article

Monodisperse and multilayer core-shell latex via surface cross-linking emulsion polymerization

期刊

MATERIALS LETTERS
卷 63, 期 18-19, 页码 1614-1617

出版社

ELSEVIER
DOI: 10.1016/j.matlet.2009.04.029

关键词

Core-shell; Seed emulsion polymerization; Multilayer; Monodisperse; Cross-linking agent

资金

  1. National Science Foundation of P. R. China [S0703002]

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We describe a method for the synthesis of phase-separated polymer latex with a monodisperse and multilayer core-shell (MMLCS) morphology by surface cross-linking emulsion polymerization. Poly(butyl acrylate)(PBA) was used for the seed and the core of the latex, the inner shell was poly(butyl acrylatestyrene) cross-linked with divinylbenzene (DVB) to avoid phase inversion, and the poly(methyl methacrylate-butyl acrylate-glycidyl methacrylate) was the outer shell. TEM, DSC, DLS were used to characterize this MMLCS emulsion. The multilayer core-shell structure was clearly shown in TEM micrographs, and the three-phase separation was confirmed by DSC analysis. DLS analysis showed that the average diameters and shell thicknesses of MMLCS latex were about 127 nm, 13 nm and 12 nm, which agreed with TEM micrograph measurements of 126 nm, 14 nm, and 14 nm. respectively. (C) 2009 Elsevier B.V. All rights reserved.

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