ORGANIZED-POLYMERIZATION IN MICELLE FORMED BY DIBLOCK MACROMONOMERS

Vinylbenzyl-terminated poly[styrene(S)-b-isoprene(I)] AB type diblock macromonomers were prepared by the direct coupling of corresponding living diblock anions with a large excess of p-chloromethylstyrene (CMS). The end group functionality of these diblock macromonomers was close to unity. Diblock macromonomers showed a narrow polydispersity (M(w)BAR/M(n)BAR = 1.04-1.09). Free radical polymerizations were carried out in micelle formed by diblock macromonomers. We also studied the formation of (AB)n type star block copolymers by means of micro-gelation between diblock macromonomer and ethylene glycol dimethacrylate as a linking agent. (C) 1993 John Wiley & Sons, Inc.