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Synthesis of Amphiphilic Three‐Armed Star Random Copolymers via Living Radical Polymerization and their Unimolecular Folding Properties in Water
Author(s) -
Sugita Takanori,
Matsumoto Kazuma,
Terashima Takaya,
Sawamoto Mitsuo
Publication year - 2015
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.201400027
Subject(s) - copolymer , amphiphile , polymer chemistry , micelle , ethylene glycol , methacrylate , materials science , methyl methacrylate , polymerization , radical polymerization , chemistry , organic chemistry , polymer , aqueous solution
Summary Amphiphilic three‐armed star random copolymers were synthesized by ruthenium‐catalyzed living radical copolymerization of hydrophilic poly(ethylene glycol) methyl ether methacrylate (PEGMA) and hydrophobic dodecyl methacrylate (DMA). Their amphiphilic star random copolymers with 10‐50 mol% DMA efficiently self‐folded in water with intramolecular hydrophobic interaction to form compact unimolecular micelles. Owing to PEG segments, star copolymers were thermoresponsive to induce lower critical solution temperature‐type phase separation in water.