POLYMERIC NANOPARTICLES FROM SUPERCRITICAL CO_2 MICROEMULSION POLYMERIZATION

作     者：Wei-jun Ye Jason S. Keiper Joseph M. DeSimone 

作者机构：NSF Science and Technology Center for Environmentally Responsible Solvents and Processes Department of Chemistry University of North Carolina at Chapel Hill CB# 3290 Venable Hall Chapel Hill NC 27599-3290 USA Department of Chemical Engineering North Carolina State University P. O. Box 7905 Raleigh NC 27695-7905 USA 

出 版 物：《Chinese Journal of Polymer Science》 (高分子科学（英文版）)

年 卷 期：2006年第24卷第1期

页      面：95-101页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070305[理学-高分子化学与物理] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 

基　　金：This work was financially supported by the STC Program of the US National Science Foundation under Agreement No.CHE-9876674 

主　　题：Supercritical carbon dioxide Nanoparticles Microemulsion polymerization. 

摘      要：Herein, we reported the microemulsion polymerization in supercritical carbon dioxide. With the aid of an anionic phosphate fluorosurfactant （bis-[2-（F-hexyl）ethyl]phosphate sodium）, water-soluble/CO2-insoluble acryloxyethyltrimethyl ammonium chloride monomer and N,N＇-methylene-bisacrylamide cross-linker were solubilized into CO2 continuous phase via the formation of water-in-CO2 （w/c） microemulsion water pools. Initiated by a CO2-soluble initiator, 2,2＇-azo-bisisobutyronitrile （AIBN）, cross-linked poly（acryloxyethyltrimethyl ammonium chloride） particles were produced and stabilized in these w/c internal water pools. Nano-sized particles with sizes less than 20 nm in diameter and narrow particle size distributions were obtained.