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Microphase‐Separated Poly(vinylpyridine) Block Copolymer Prepared with a Novel Bifunctional Initiator
Author(s) -
Shoji Masami,
Eguchi Masao,
Layman John M.,
Cashion Matthew P.,
Long Timothy E.,
Nishide Hiroyuki
Publication year - 2009
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.200800558
Subject(s) - copolymer , polymer chemistry , nitroxide mediated radical polymerization , atom transfer radical polymerization , methyl methacrylate , living free radical polymerization , polymerization , radical polymerization , bifunctional , living polymerization , chemistry , materials science , polymer , organic chemistry , catalysis
A vinylpyridine block copolymer was prepared by stepwise controlled/living radical polymerization with a novel bifunctional initiator, 4‐(2‐bromopropanoyloxy)‐ N ‐( p ‐methylbenzyloxy)‐2,2,6,6‐tetramethylpiperidine. The initiator was synthesized in a facile manner using commercially available p ‐xylene and 4‐hydroxy‐2,2,6,6‐tetramethylpiperidine‐1‐oxyl (4‐hydroxy TEMPO). Through stepwise atom transfer radical polymerization (ATRP) of methyl methacrylate (MMA) and nitroxide‐mediated radical polymerization (NMRP) of 4‐vinylpyridine (4VP), the PMMA‐ b‐ P4VP copolymer was prepared with a wide range of the copolymer compositions. Microphase‐separation was demonstrated in cross sectional TEM images of self‐standing block copolymer membranes.