Premium
A Novel Strategy to Synthesize Double Comb‐Shaped Water Soluble Copolymer by RAFT Polymerization
Author(s) -
Han DeHui,
Pan CaiYuan
Publication year - 2006
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.200600026
Subject(s) - copolymer , polymer chemistry , ethylene oxide , materials science , polymerization , dispersity , reversible addition−fragmentation chain transfer polymerization , macromonomer , methyl methacrylate , methacrylate , polymer , chemistry , radical polymerization , composite material
Summary: A double comb‐shaped water soluble copolymer, poly[poly(ethylene oxide) methyl ether methacrylate]‐ block ‐poly( N ‐isopropylacrylamide)‐ block ‐poly[poly (ethylene oxide) methyl ether methacrylate], abbreviated as [P(MA‐MPEO)‐ block ‐PNIPAM‐ block ‐P(MA‐MPEO)], with a controlled molecular weight and narrow polydispersity was successively synthesized using a macromonomer technique. The 60 Co γ irradiation polymerization of MA‐MPEO in the presence of dibenzyl trithiocarbonate (DBTTC) at room temperature afforded a polymer, P(MA‐MPEO)‐SC(S)S‐P(MA‐MPEO), which was subsequently used as a macro RAFT agent in the RAFT polymerization of N ‐isopropylacrylamide, and water soluble double comb‐shaped copolymers, P(MA‐MPEO)‐ block ‐PNIPAM‐ block ‐P(MA‐MPEO), were successfully obtained.Structure of the double comb‐shaped copolymer.