关键词: 反应机理, 顺丁烯二酸酐, 聚合, 阴离子, 电子结构, 均聚物, 电荷分布, 羟基化合物, 碳离子, 前线轨道理论

The electronic structures, charge distribution and bond orders in maleic anhydride (MA), hydroxide ion, and α- hydroxysuccinic anhydride carbanion (HOSA^-) have been calculated using an AM1 method. On the basis of the Frontier Orbital Theory and three Bonding Principles, the possibility of reaction of active HOSA^- carbanion on polymerization process of MA by alkali catalyst and the mechanism of anionic polymerization of maleic anhydride were studied. Calculations verify nicely the experimental findings.

Key words: REACTION MECHANISM, MALEIC ANHYDRIDE, POLYMERIZATION, ANION, ELECTRONIC STRUCTURE, HOMOPOLYMER, CHARGE DISTRIBUTION, HYDROXYL COMPOUNDS, CARBON ION, FRONTIER ORBITAL THEORY