Preparation and Characterization of Silicone Liquid Core/Polymer Shell Microcapsules via Internal Phase Separation

被引：33

作者：

Gonzalez, Lidia ^{[1
]}

Kostrzewska, Malgorzata ^{[1
]}

Ma Baoguang ^{[1
]}

Li Li ^{[1
]}

Hansen, Jens Henrik ^{[2
]}

Hvilsted, Soren ^{[1
]}

Skov, Anne Ladegaard ^{[1
]}

机构：

[1] DTU, Danish Polymer Ctr, Dept Chem & Biochem Engn, DK-2800 Lyngby, Denmark

[2] Maersk Oil Res & Technol Ctr, Doha, Qatar

来源：

MACROMOLECULAR MATERIALS AND ENGINEERING | 2014年 / 299卷 / 10期

关键词：

microcapsules; oil-in-water emulsion; PMMA shell; silicone liquid core; INTERFACIAL POLYCONDENSATION; AQUEOUS CORE; RELEASE; MICROSPHERES; NANOCAPSULES; SIZE;

D O I：

10.1002/mame.201400020

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Microcapsules with a silicone liquid core surrounded by a polymeric shell were synthesised through the controlled phase separation. The dispersed silicone phase consisted of the shell polymer PMMA, a good solvent for the PMMA (dichloromethane, DCM) and a poor solvent (methylhydrosiloxane dimethylsiloxane) for the PMMA. The morphology of the PMMA microcapsules was investigated by ATR-FTIR and by optical microscopy. Microcapsules were prepared with different emulsifiers and different concentrations of acetone and PMMA in the oil phase. The thermal stability of the PMMA microcapsule and the content of the silicone oil core were assessed by TGA. H-1-NMR spectroscopy and an extraction method were also used to determine the content of the silicone liquid core in the microcapsules.

引用

页码：1259 / 1267

页数：9

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