Journal
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
Volume 48, Issue 5, Pages 1049-1057Publisher
WILEY-BLACKWELL
DOI: 10.1002/pola.23859
Keywords
atom transfer radical polymerization; block copolymers; chain-growth condensation polymerization; poly(phenylene oxide)
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Funding
- National Research Foundation (NRF) [R0A-2008-000-20121-0]
- ERC [R11-2007-050-04001-0]
- Ministry of Environment, Republic of Korea [20090192091001-B0-0-001-0-0-2009]
- National Research Foundation of Korea [2007-0056569, R0A-2008-000-20121-0] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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Well-defined trifluoromethylated poly(phenylene oxide)s were synthesized via nucleophilic aromatic substitution (SNAr) reaction by a chain-growth polymerization manner. Polymerization of potassium 4-fluoro-3-(trifluoromethyl)phenolate in the presence of an appropriate initiator yielded polymers with molecular weights of similar to 4000 and polydispersity indices of <1.2, which were characterized by H-1 nuclear magnetic resonance spectroscopy and gel permeation chromatography. Initiating sites for atom transfer radical polymerization (ATRP) were introduced at the either side of chain ends of the poly(phenylene oxide), and used for ATRP of styrene and methyl methacrylate, yielding well-defined rod-coil block copolymers. Differential scanning calorimetry study indicated that the well-defined trifluoromethylated poly(phenylene oxide)s showed high crystallinity and were immiscible with polystyrene. (C) 2010 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 48: 1049-1057, 2010
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