| abstract |
A process for the preparation of polymers comprising: polymerizing at least one monomer of the formula X-CH2-Ar-CH2-X' in the presence of a base and at least one chain end controlling additive of the formula R-H to form a soluble conjugated poly(arylene vinylene) of the formula R-CH2-[AR-CH=CH-]n-Ar-CH2-R where X and X' are electron withdrawing groups, R-H is a compound containing at least one acidic proton, R is a nucleophile, Ar is an aryl or aromatic group with from 5 to 30 carbon atoms, and n represents the number of repeating segments. |