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Synthesis of Amphiphilic Poly(ethylene oxide‐ co ‐glycidol)‐ graft ‐polyacrylonitrile Brush Copolymers and their Self‐assembly in Aqueous Media
Author(s) -
Sui Kunyan,
Liang Hongchao,
Zhao Xin,
Ma Yingying,
Zhang Yang,
Xia Yanzhi
Publication year - 2012
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.201200136
Subject(s) - glycidol , polyacrylonitrile , copolymer , polymer chemistry , amphiphile , polymerization , ethylene oxide , aqueous solution , materials science , chemistry , ethylene glycol , chemical engineering , organic chemistry , polymer , catalysis , engineering
An amphiphilic copolymer brush poly(ethylene oxide‐ co ‐glycidol)‐ graft ‐polyacrylonitrile [poly(EO‐ co ‐Gly)‐ g ‐PAN], is successfully prepared for the first time by a combination of anionic polymerization and redox free radical polymerization. The final products and intermediates are characterized by NMR and GPC. Aggregates made from the brush copolymers, poly(EO‐ co ‐Gly)‐ g ‐PAN, with a long hydrophobic graft length in water are studied by TEM and DLS. The effects of hydrophobic graft length and water content on the morphologies are discussed. Some rare morphologies of aggregates are observed, such as lamellae, bicontinuous networks, bowls or nanosheets, and large compound rods with a brittleness that can be ascribed to the orientation of high content semi‐crystalline PAN segments.