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In this paper,(-)menthyl methacrylate((-)MnMA) was polymerized at -78(C in toluene with three types of anionic catalysts,which were complexes of fluorenyllithium with (-)sparteine - ((-)-Sp) ,(S,S)-(+)-2,3-dimethoxy-1,4-bis(dimethylamino)butane((+)DDB) an