Synthesis and solvent‐dependent micellization of the amphiphilic block copolymer poly(styreneboronic acid)‐block‐polystyrene |
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Authors: | Chengzhong Cui Edward M Bonder Yang Qin Frieder Jäkle |
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Institution: | 1. Department of Chemistry, Rutgers University‐Newark, 73 Warren Street, Newark, New Jersey 07102;2. Department of Biological Sciences, Rutgers University‐Newark, 195 University Avenue, Newark, New Jersey 07102 |
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Abstract: | The amphiphilic organoboron block copolymer poly (styreneboronic acid)‐block‐polystyrene ( PSBA‐b‐PS ) has been prepared through a postpolymerization modification route from the silicon‐functionalized block copolymer poly(4‐trimethylsilylstyrene)‐block‐polystyrene ( PSSi‐b‐PS ). PSBA‐b‐PS is obtained through highly selective reaction of PSSi‐b‐PS with BBr3 at room temperature and subsequent hydrolysis of the BBr2‐functionalized intermediate. Transmission electron microscopy studies demonstrate that PSBA‐b‐PS undergoes pH dependent micellization in aqueous solution. Different morphologies could be realized by using different mixtures of water and organic solvents. © 2010 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 48: 2438–2445, 2010 |
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Keywords: | amphiphiles ATRP block copolymers boronic acids free radical polymerization inorganic polymers micellization stimuli‐responsive polymers |
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