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- STUDIES ON STYRENE SYNDIOSPECIFIC POLYMERIZATION AND PROPENE ATACTIC POLYMERIZATION WITH TITANOCENE/MAO/ AlR?3 HOMOGENEOUS CATALYTIC SYSTEMS?? 单茂钛化合物/MAO/AlR_3均相催化体系合成sPS与aPP研究
- homogeneous catalytic system 均相催化体系
- The catalytic system is the key of cross-coupling reaction. 催化剂体系是交叉偶联反应研究的核心。
- The recent progress in researches on the homogeneous catalytic ozonation for degradation of organics in water is reviewed in this paper. 综述了近年来水溶液和有机溶剂中均相催化臭氧化降解水中有机物的研究进展。
- The key for such a catalytic system was the addition of 1 equivalent of tetrabutylammonium bromide. 反应的关键是向体系中加入1当量四丁基溴化铵。
- Isomerization of linalool to geraniol/nerol was catalyzed by the catalytic system which is composed of vanadium complexs and boric acid ester. 以钒化合物作催化剂与硼酸酯为介质组成催化体系,由芳樟醇异构制取香叶醇和橙花醇,分别考察了反应温度、时间、介质等因素对反应的影响。
- Diketones and diols as internal electronic donors eliminate the use of external electronic donors and lower complexity of the catalytic system. 二酮类和二醇类化合物作为内给电子体,在聚合时不用外给电子体,这将降低催化剂体系的复杂性。
- Using a colloidal Pd catalytic system to metalize the surface of precipitators separated from coal fly-ash,the metals such as Cu,Ni,etc. 采用化学镀膜的方法,在空心微珠(沉珠和漂珠)表面进行金属化处理。
- Homogeneous catalytic wet air oxidation 均相催化湿式氧化
- homogeneous catalytic hydrogenate 均相催化氢化
- homogeneous catalytic hydrogenation 均相催化氢化
- The rare earth coordinated catalytic system was used to catalyze the copolymerization of CO 2 and ECH. Then the aliphatic polycarbonate ECH-CO 2 was synthesized. 利用稀土络合催化体系催化二氧化碳 (CO2 )和环氧氯丙烷 (ECH)共聚反应 ,合成出新型高分子材料脂肪族聚碳酸酯 (ECHCO2 )。
- In this thesis,the rare earth coordinated catalytic system was used to catalyze the copolymerization of CO 2 and ECH. The aliphatic polycarbonate ECHCO 2 was synthesized. 二氧化碳 (CO2 )和环氧氯丙烷 (ECH)在稀土络合催化体系作用下共聚反应 ,合成出脂肪族聚碳酸酯 (ECHCO2 )。
- The catalytic system formed from polymer-supported neodymium complexes shows high catalytic activity and stereospecificity for butadiene polymerization. 聚合物载体-钕络合物催化剂具有很高的催化活性和定向效应.
- This paper reviews the catalytic system of methyl formate reacting with alkene for synthesis of esters,in addition,the reaction mechanism is also discussed. 本文系统介绍了甲酸甲酯与烯烃反应合成酯的催化体系,并对反应机理进行了讨论。
- Using this catalytic system,the oxidation reactions proceed under mild conditions and give both high conversions and selectivities.In the paper,this novel catalyti... 该催化体系催化的烃类分子氧氧化反应具有反应条件温和、选择性高等优点。
- Hydrogenated styrene-butadiene rubber(HSBR)was prepared by hydrogenating styrene-butadiene rubber(SBR) latex with hydrazine hydrate-hydrogen peroxide-copper sulfate catalytic system. 用水合肼/双氧水/硫酸铜催化体系对丁苯橡胶(SBR)胶乳加氢,可制备氢化丁苯橡胶(HSBR)。
- Recent progresses of pinene epoxidation at home and abroad were reviewed,different kinds of epoxidation catalytic system and their catalytic reaction characteristics were discussed in details. 对近年来国内外蒎烯环氧化反应的研究作了评述,详细讨论了蒎烯的环氧化催化剂体系及其催化反应特点。
- Results show,by adopting the combined catalytic system of hot tube catalyst and metallic honeycomb catalyst,the light off performance as well as durability of catalyst could be improved effectively. 结果表明,通过采取热管式催化剂+金属蜂窝载体催化剂的结构方案,可有效地改善催化剂的起燃性能和耐久性能。
- The catalytic systems and their main results of propane oxidative dehydrogenation to propylene are reviewed . 综述了丙烷氧化脱氢制丙烯反应催化剂体系及其主要研究结果。