Patent ID: 7763688

Claim:
A process for the preparation of organic solvent soluble copolymer having general formula (A (x) B (y) ) wherein A is a vinyl monomer comprising one unsaturation, B is a vinyl monomer comprising multiple unsaturations and x and y represent mole fractions of A and B, the said process comprising the steps of : (a) dissolving an inclusion complex of the monomer (B) containing multiple unsaturation with β cyclodextrin in a polar aprotic organic solvent selected from the group consisting of N,N dimethyl formamide, N,N dimethyl acetamide, and dimethyl sulfoxide; and (b) adding the vinyl monomer (A) having single unsaturation and a free radical initiator to the reaction mixture of step (a) and polymerizing the solution thus formed, precipitating the polymer in water to dissolve β cyclodextrin, recover the precipitated polymer by drying to obtain organic solvent soluble copolymer which contains pendant unsaturation.