The nitroxide-mediated controlled/living free radical copolymerization of styrene and divinylbenzene,using a polystyrene-TEMPO macroinitiator in aqueous miniemulsion and in bulk have been investigated. The crosslink densities were estimated based on the content of pendant vinyl groups as determined by H-1 NMR. Considerably lower crosslink densities were revealed in the miniemulsion than in the corresponding bulk system. The rate of polymerization in the miniemulsion increased with decreasing particle size, and was significantly higher than in bulk.
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Univ Nacl Autonoma Mexico, Dept Ingn Quim, Fac Quim, Mexico City 04510, DF, MexicoUniv Nacl Autonoma Mexico, Dept Ingn Quim, Fac Quim, Mexico City 04510, DF, Mexico
Hernandez-Ortiz, Julio C.
Vivaldo-Lima, Eduardo
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机构:Univ Nacl Autonoma Mexico, Dept Ingn Quim, Fac Quim, Mexico City 04510, DF, Mexico
Vivaldo-Lima, Eduardo
Lona, Liliane M. F.
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Univ Nacl Autonoma Mexico, Dept Ingn Quim, Fac Quim, Mexico City 04510, DF, Mexico
Univ Estadual Campinas, Fac Engn Quim, Dept Proc Quim, BR-13083970 Campinas, SP, BrazilUniv Nacl Autonoma Mexico, Dept Ingn Quim, Fac Quim, Mexico City 04510, DF, Mexico
Lona, Liliane M. F.
McManus, Neil T.
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Univ Waterloo, Dept Chem Engn, Polymer Res Inst, Waterloo, ON N2L 3G1, CanadaUniv Nacl Autonoma Mexico, Dept Ingn Quim, Fac Quim, Mexico City 04510, DF, Mexico
McManus, Neil T.
Penlidis, Alexander
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Univ Waterloo, Dept Chem Engn, Polymer Res Inst, Waterloo, ON N2L 3G1, CanadaUniv Nacl Autonoma Mexico, Dept Ingn Quim, Fac Quim, Mexico City 04510, DF, Mexico