Premium
Morphology Control of Highly Sulfonated Block Copolymers by a Simple Thermal Process
Author(s) -
Baek KyungYoul,
Kim HyunJi,
Lee SangHo,
Cho KieYong,
Kim Hyeong Tae,
Hwang Seung Sang
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.200900475
Subject(s) - copolymer , polymer chemistry , styrene , polystyrene , materials science , thermal decomposition , small angle x ray scattering , lamella (surface anatomy) , acrylate , block (permutation group theory) , polymerization , morphology (biology) , butyl acrylate , radical polymerization , chemistry , polymer , organic chemistry , scattering , composite material , physics , geometry , mathematics , biology , optics , genetics
Well‐defined sulfonated block copolymers were prepared by direct thermolysis with block copolymers of n ‐butyl acrylate ( n BA) and neopentyl styrene sulfonated (NSS), which were synthesized by Cu‐based living radical polymerization ( $\overline M _{\rm w} /\overline M _{\rm n}$ <1.20). A simple thermal process for 10 min at 150 °C completely deprotected the neopentyl groups in the poly(NSS) block segment to give fully sulfonated polystyrene backbone. SAXS profile of the block copolymer with 47 wt.‐% of poly(NSS) showed lamella structure, which appeared more clearly with long ranged order after sulfonation of the block copolymer.