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高分子学报 2009
SYNTHESIS AND CHIROPTICAL PROPERTY OF N-(o-OXAZOLINEPHENYL) METHACRYLAMIDE BASED OPTICACLLY ACTIVE POLYMERS
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Abstract:
Enantiopure methacrylamide derivative,N-o-(4-methyl-4,5-dihydro-1,3-oxazol-2-yl)phenyl] methacrylamide ((S)-MeOPMAM) was synthesized and radically polymerized in the presence of rare earth metal trifluoromethanesulfonates (Ln(OTf)3,Ln = La,Nd,Sm,and Y) to yield corresponding optically active polymers.Among these Lewis acids,Y(OTf)3 was found to be most effective for increasing the isotactic specificity during the radical polymerizations when using n-butanol as a solvent.The effect of the Lewis acids was si...