"Substitutable" polymer brushes: Reactive poly(methacrylate) brushes with exchangeable alkoxyamine units in the side chain

Chemistry Letters

Volumn 39, Issue 11, 2010, Pages 1209-1211

  Sato, Tomoya ^a   Amamoto, Yoshifumi ^a   Yamaguchi, Hiroki ^a   Otsuka, Hideyuki ^a   Takahara, Atsushi ^a  

^a KYUSHU UNIVERSITY   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 78449289516     PISSN: 03667022     EISSN: 13480715     Source Type: Journal    
DOI: 10.1246/cl.2010.1209     Document Type: Article

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35. Preparation of polymer brush 1: An initiator-modified silicon wafer (10 mm x 40 mm) was charged into a glass tube, and air was removed by evacuation for 30 min and Ar gas was charged. Then, alkoxyamine-containing methacrylic ester 2 (11.08 g, 2.5 mmol), MMA (2.67 mL, 25 mmol), anisole (2 mL, 18.4mmol), and ethyl 2-bromoisobutylate (20.47μL, 0.1375 mmol) were charged and the solution was stirred at room temperature under Ar for 20 min. The mixture was degassed by eight freeze-pump-thaw cycles and backfilled with Ar gas. A degassed anisóle solution of CuBr (19.7 mg, 0.1375 mmol) and 4,4′-dinonyl-2, 2′-bipyridyl (112.4 mg, 0.275 mmol) was added, and the glass tube was immersed in an oil bath thermostatted at 50 °C under Ar. After 15 h, the reaction mixture was quenched rapidly to 0 °C. Then the substrate was washed with dichloromethane using a Soxhlet extractor for 6 h and dried under reduced pressure.
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