计算机Monte Carlo法模拟自由基交联共聚网络结构的增长

本文成功地用MonteCarlo方法模拟了以画面方式表示的苯乙烯-二乙烯苯交联共聚反应中大分子链增长、支化及交联的进化情况，并给出了相应的转化率，以定量模型的方式描述了该类反应。     

CO和CH_30N0在Al_20_3负载钯铜合金催化剂上合成草酸二甲酯的原位红外光谱研究

利用原位红外光谱技术研究了常压下CO和CH3ONO多相催化合成草酸二甲酯的反应．发现在草酸二甲酯生成的同时还存在副反应，副产物NO继续与CO反应生成CO2和N2O．铜在合金催化剂中起辅助作用，铜分散把，使CO桥式吸附减少，线式吸附增多．主反应与CO桥式吸附无关，而副反应却依赖于CO的桥式吸附．CO线式吸附具有更高的反应活性．     

聚合物因载化聚乙二醇季铵盐型相转移催化剂在有机合成中的应用

本文考察了固载化聚乙二醇季铵盐作为相转移催化剂在咪唑Ｎ－烷基化反应，Ｗｉｌｌｉａｍｓｏｎ混合醚的合成以及卤素置换反应中的应用，着重研究了改变反应条件对催化反应的影响，就催化剂的重复使用能力和催化剂结构对其催化效率的影响也略作探讨。实验证明，本催化剂有较高的催化活性，有实际应用价值。     

聚合物固载化聚乙二醇季胺盐型相转移催化剂的结构与催化活性

The gelatinous and macroporous phase transfer catalysts with multiple active centers were synthesized by means of quarterisation of PEG tertiary amine and chloromethylated St DVB copolymer. They were examined as phase transfer catalysts in the reaction of n C 8H 17 Br with solid NaI. The experimental results showed that the reaction rate was first order with respect to the concentration of n C 8H 17 Br. The effects of catalyst structure on the catalytic activity were also investigated. The observed reaction rate constant ( k obsd ) increased as the degree of cross linking of polymer decreased. Macroporous catalysts showed a higher activity (2～2 5 times) than that of microporous catalysts with the same degree of cross linking of polymer, particle size and amount of supported PEG. Molecular weight of PEG also showed much influence on k obsd . As molecular weight of PEG rose properly, the catalysts showed a higher activity. The results were discussed from the aspect of triphase catalysis reaction mechanism.     

聚合物固载的聚乙二醇季铵盐型相转移催化剂的合成、表征及相转移催化作用

合成了一系列含有聚乙二醇链和季铵盐两种活性中心的高分子相转移催化剂，并考察了它们在正溴辛烷与固体碘化钠的亲核取代反应中的相转移催化性能。结果表明，催化反应对ｎ—Ｃ８Ｈ１７Ｂｒ浓度为表观一级。温度、溶剂和微量水等反应条件对催化反应有较大影响，从反应动力学、本征反应性和内扩散等方面讨论了实验结果。     

0聚合物固载的聚乙二醇季铵盐型相转移催化剂的合成,表征及相…

合成了一系列含有聚乙二聚链和季铵盐两种性中心的离分子相转移催化剂，并考察了它闪在正溴辛烷与固体碘化钠的亲核了以代反应中的相转移催化性能。