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Synthesis of Amphiphilic and Double‐Hydrophilic Block Copolymers Containing Poly(vinyl amine) Segments by RAFT Polymerization of N ‐Vinylphthalimide
Author(s) -
Maki Yuya,
Mori Hideharu,
Endo Takeshi
Publication year - 2010
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.200900332
Subject(s) - copolymer , polymer chemistry , chain transfer , raft , amphiphile , reversible addition−fragmentation chain transfer polymerization , dithiocarbamate , polymerization , polystyrene , materials science , chemistry , radical polymerization , polymer , organic chemistry
We report on the controlled synthesis of amphiphilic and double‐hydrophilic block copolymers having poly(vinyl amine) segments by the reversible addition–fragmentation chain transfer (RAFT) polymerization of N ‐vinylphthalimide (NVPI), followed by deprotection. The block copolymer poly(NVPI)‐ b ‐poly( N ‐isopropylacrylamide) with a controlled molecular weight and low molecular mass distribution was obtained by the polymerization of N ‐isopropylacrylamide (NIPAAm) using dithiocarbamate‐terminated poly(NVPI). The chain extension from the dithiocarbamate‐terminated polystyrene to NVPI could be controlled well under suitable conditions, and provided the block copolymer, polystyrene‐ b ‐poly(NVPI). We also investigated the thermoresponsive and optoelectronic properties and the aggregation behavior of double hydrophilic and amphiphilic block copolymers obtained after deprotection.