CHEMICAL-REACTIONS ON REDOX POLYMER PRECURSORS .1. CHLOROMETHYLATION AND LITHIATION

Chloromethylation and lithiation were amongst the different chemical r eactions carried out on five redox polymers: poly(5-vinyl-1,3-benzodio xole), poly I; poly(3,4-dimethoxystyrene), poly II; poly(2,3-dimethoxy styrene), poly III; poly(6-vinyl-1,4-benzodioxane), poly IV; poly(4-vi nyl-1,3-benzodioxole), poly V. In the course of the former reaction, a n inter- and/or intrapolymeric Friedel-Crafts alkylation has been ensu ed leading to crosslinked polymers. Only poly(6-vinyl-1,4-benzodioxane ), poly IV, could undergo chloromethylation but under severely control led conditions. The lithiation did not exceed 60% in terms of degree o f substitution. (C) 1997 Elsevier Science Ltd.