Precipitation Polymerization in Ethanol and Ethanol/Water to Prepare Uniform Microspheres of Poly(TMPTA‐styrene) | Zendy

Kong Xiang Zheng | Zendy; Gu Xiang Ling | Zendy; Zhu Xiaoli | Zendy; Zhang Lina | Zendy

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Precipitation Polymerization in Ethanol and Ethanol/Water to Prepare Uniform Microspheres of Poly(TMPTA‐styrene)

Author(s) -

Kong Xiang Zheng,

Gu Xiang Ling,

Zhu Xiaoli,

Zhang Lina

Publication year - 2009

Publication title -

macromolecular rapid communications

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.348

H-Index - 154

eISSN - 1521-3927

pISSN - 1022-1336

DOI - 10.1002/marc.200800772

Subject(s) - precipitation polymerization , polymerization , monomer , styrene , tmpta , solvent , materials science , polymer chemistry , precipitation , bulk polymerization , chemical engineering , suspension polymerization , chemistry , copolymer , radical polymerization , organic chemistry , polymer , acrylate , physics , meteorology , engineering

The precipitation polymerization of styrene‐trihydroxymethyl propane triacrylate has been carried out using ethanol and an ethanol/water mixture as the solvent. Uniform microspheres with high monomer conversion are achieved within 4 h, a much shorter polymerization time than that reported for the precipitation polymerization of divinyl benzene‐styrene in acetonitrile. The results clearly demonstrate that use of water as a co‐solvent is indeed very effective to promote the polymerization to high conversion and to obtain uniform microspheres. With no water under the otherwise same experimental conditions, only about 57% of monomer conversion is obtained; while the monomer conversion is remarkably increased to 96% when 12 vol.‐% of water is used.

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