Journal
JOURNAL OF FLUORINE CHEMISTRY
Volume 129, Issue 2, Pages 125-130Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jfluchem.2007.09.008
Keywords
amphiphilic copolymer; fluorinated; RAFT; emulsifier-free
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The hydrophobic monomer dodecafluoroheptyl methacrylate has been copolymerized with hydrophilic monomer methacrylic acid in aqueous solution without any additional emulsifier used via a two-step polymerization process of RAFT. The FTIR and GPC results indicated that amphiphilic copolymers with a narrow molecular weight distribution and well-defined blocks have been synthesized successfully. And the copolymers are likely to form steady micelles in the emulsion. Indicated by TEM, it is clear that micelles with a diameter of 70-120 rim have been formed. Despite a content of 22 wt% of hydrophilic carboxyl, films formed by casting the emulsion onto the baseplate can be hydrophobic after heating treatment. (C) 2007 Elsevier B.V. All rights reserved.
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