Synthesis of highly cross-linked poly(diethylene glycol dimethacrylate) microparticles in supercritical carbon dioxide

被引：35

作者：

Casimiro, T ^{[1
]}

Banet-Osuna, AM ^{[1
]}

Ramos, AM ^{[1
]}

da Ponte, MN ^{[1
]}

Aguiar-Ricardo, A ^{[1
]}

机构：

[1] Univ Nova Lisboa, FCT, Dept Quim, REQUIMTE,CQFB, P-2829516 Caparica, Portugal

来源：

EUROPEAN POLYMER JOURNAL | 2005年 / 41卷 / 09期

关键词：

diethylene glycol dimethacrylate; supercritical carbon dioxide; heterogeneous polymerisation; cross-linking; Krytox;

D O I：

10.1016/j.eurpolymj.2005.03.015

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Herein we report the synthesis of poly(diethylene glycol dimethacrylate), poly(DEGDMA), by free-radical heterogeneous polymerization in supercritical carbon dioxide (scCO(2)), using a commercially available carboxylic acid end-capped perfluoropolyether oil (Krytox 157FSL) as stabiliser. The effect of initial concentration of stabiliser, monomer and initiator on the yield and morphology of the resulting polymer has been investigated. Krytox worked effectively as a stabiliser and discrete poly(DEGDMA) particles with diameters ranging from 1.28 to 2.08 mu m and narrow particle size distribution were produced in supercritical carbon dioxide, in high yield and in short reaction times, without making use of harmful organic solvents. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：1947 / 1953

页数：7

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