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Volumn 40, Issue 10, 2007, Pages 3581-3588

Amphiphilic, thermosensitive ruthenium(II)-bearing star polymer catalysts: One-pot synthesis of PEG armed star polymers with ruthenium(II)-enclosed microgel cores via metal-catalyzed living radical polymerization

(5) Terashima, Takaya a Ouchi, Makoto a Ando, Tsuyoshi a Kamigaito, Masami b Sawamoto, Mitsuo a

a KYOTO UNIVERSITY (Japan)

b NAGOYA UNIVERSITY (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

AMPHIPHILES; BLOCK COPOLYMERS; CATALYST ACTIVITY; LIGANDS; LIVING POLYMERIZATION; ORGANOMETALLICS;

METAL ENCAPSULATION; MICROGELS; STAR POLYMERS; THERMAL RESPONSIVENESS; THERMOSENSITIVITY;

RUTHENIUM COMPOUNDS;

EID: 34249650666 PISSN: 00249297 EISSN: None Source Type: Journal
DOI: 10.1021/ma062446r Document Type: Article

Times cited : (111)

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- This work was presented in part at the following meeting: (a) The 52th Symposium on macromolecules, Yamaguchi, Japan, September 2003; paper IIB15: Terashima, T.; Ando, T.; Sawamoto, M.; Kamigaito, M. Polym. Prepr. Jpn. 2003, 52 (8), 1530.

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- Synthesis of PEGMA-b-MMA/2 copolymer: Prepolymer [PEGMAJ]0/, MMA2Cl]o/[RuCl2(PPh3) 3]o/[n-Bu3N]o, 500/10/10/20 mM in toluene at 80 °C; Block [MMA]add/[2]add, 300/25 mM in toluene; prepolymer solution/block solution, 2/1 v/v (the final molar ratio of used compounds PEGMA/(MMA)2Cl/MMA/2/RuCl 2(PPh3)3, 50/1/15/1.25/1, Polymerization and characterization: a toluene solution of MMA and 2 was directly added into living PEGMA solution [PEGMA conversion 90, 10 h, Mn, 21400 (PMMA calibration, Mw/Mn, 1.45] to give PEGMA-b-MMA/2 block copolymer [MMA/ 2 conversion 75/100, 24 h, Mn, 23100 (PMMA calibration, Mw/Mn, 1.48, The obtained block polymer was bound 17 μmol of Ru(II)/g of polymer by UV-vis analysis
- n = 1.48]. The obtained block polymer was bound 17 μmol of Ru(II)/g of polymer by UV-vis analysis.

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