A new route of synthesis of block copolymers was investigated. It involves the polymerization of a side-chain liquid-crystalline acrylate and poly(propylene glycol), modified by an esterification reaction with mercaptoacetic acid used as macrotransfer agent, in the presence of 2,2′-azoisobutyronitrile as initiator. The molecular weight of the liquid-crystalline blocks is determined by the molar ratio between the reactants.
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