Graft copolymers having hydrophobic backbone and hydrophilic branches. V. Microspheres obtained by the copolymerization of poly(ethylene glycol) macromonomer with methyl methacrylate

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Glycols - Polymerization - Polymerization - Copolymerization - Polymethyl Methacrylate - Synthesis;
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Among macromonomers, amphiphilic poly(ethylene glycol) macromonomers are easily prepared from commercial poly(ethylene glycol) with hydroxy group in the polymer ends and the reactivity has been well understood.4,5 When poly(ethylene glycol) macromonomers are used as hydrophilic macromonomers for the preparation of graft copolymers in question by copolymerization with hydrophobic monomers, water-dispersible microspheres are also expected to form and the characteristics of dispersion copolymerization of hydrophilic macromonomers may be clarified. We report the characteristics of microsphere formation by the copolymerization of poly(ethylene glycol) macromonomer with methyl methacrylate in ethanol/water mixture.
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