Abstract: Polystyrenes with 1,1diphenylethene (DPE) pendent groups were synthesized via atom transfer radical polymerization (ATRP). ATRP of 4-vinylbenzyloxy benzophenone led to the formation of polystyrenes with benzophenone pendant groups. Then, the benzophenone pendant groups were converted to DPE pendent groups by Wittig reaction to yield the desired polymer. The resulting polymers and their precursors were characterized by ¹H NMR,IR,and GPC measurements in detail. The results show that the polymers have DPE pendant groups, controllable molecular weight, and a narrow molecular weight distribution.

Key words: atom transfer radical polymerization(ATRP）