THE MICELLIZATION OF AMPHIPHILIC GRAFT COPOLYMER PMMA-G-PEO IN TOLUENE

The micellization of amphiphilic graft copolymer PMMA-g-PEO in selecti ve solvent, toluene, was examined by means of H-1-NMR and viscometry. Micelle formation of PMMA-g-PEO in toluene was strongly dependent on t he concentration and temperature. An increase in temperature shifted t he micelle formation markedly to tower concentration. The viscosity da ta were analyzed to estimate the cmc value, the cmc value was affected by the PEO content and the PEO side chain lengths in PMMA-g-PEO amphi philic graft copolymers. (C) 1998 Elsevier Science Ltd. All rights res erved.