Citation: Bin YU, Xue Chun LIN, Meng Xian DING, Hui Zhen HU, Fo Song WANG. STEREOCHEMISTRY OF POLYMERIZATION OF METHYL METHACRYLATE IN THE PRESENE OF CHIRAL LIGANDS[J]. Chinese Chemical Letters, ;1993, 4(1): 27-30. shu

STEREOCHEMISTRY OF POLYMERIZATION OF METHYL METHACRYLATE IN THE PRESENE OF CHIRAL LIGANDS

Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022

Received Date: 8 July 1992

Methyl methacrylate was anionically polymerized in the presence of chiral ligands, e.g. (+)-DDB and (-)-Sp. The polymers thus formed were optically inactive due to the instability of the helical chain for the less bulky ester group. Isotactic poly(methyl methacrylate) was given when (+)-DDB was used, whereas, a syndiotactic polymer was formed in the presence of (-)-Sp. Accordingly, two different propagation mechanisms were postulated.
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