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The synthesis of polyoxytetramethylene glycol by cationic ringopening polymerization of tetrahydrofuran was studied in use of a binary catalyst system of fuming sulfuric acid and cocatalyst B. 对以发烟硫酸为主体的双元催化剂进行四氢呋喃开环聚合制备聚氧四甲撑二醇进行了系统的研究。
Keywords aziridine;cycloaddition;oxazolidinone;CO_2;binary catalyst system; 吖丙啶;环加成反应;恶唑烷酮;二氧化碳;
Binary catalyst systems 双催化组分
Abstract In nit rogen atmosphere , white ethylene bisstearamide was prepared by the cooperation of binary catalyst and binary antioxidant . 摘要在氮气保护条件下, 利用双组分催化剂和双组分抗氧剂的协同效应, 合成了白色的乙撑双硬脂酸酰胺;
The catalyst system and technics for oxidative carbonylation of phenol to diphenyl carbonate (DPC) has been studied. 针对苯酚氧化羰基化合成碳酸二苯酯(DPC)洁净化工过程用催化剂和工艺条件进行了较系统的研究。
Synthesis of adamantane was studied using AlCl 3 catalyst system and co-catalysts. 用三氯化铝－助催化剂的催化体系进行了金刚烷合成的研究。
The load mechanism of active component of this catalyst system has also been discussed. 并指出了本催化剂活性组份可能的负载机理。
A kind of catalyst system has been successfully developed for Beijing Cherokee with multipoint injection. 针对北京切诺基四缸多点喷射轻型车,本文研制成功了一种催化转化器。
It is well known that support and donor have much important impact on Ziegler-Natta catalyst systems for olefin polymerization. 载体和给电子体在Ziegler-Natta催化剂中起到了举足轻重的作用，也是Ziegler-Natta催化剂研究的重点。
Catalyst system for hydrogenation of maleic anhydrite and corresponding products are introduced. 摘要介绍了顺酐加氢反应的催化体系以及生成相应产物的情况；
Thus it becomes an economic tradeoff which must be evaluated for each catalyst system if optimum results are to be obtained. 这就成为一个经济性权衡的问题，要想得到最佳化成果，就必须对每一个催化剂系统进行评价。
A copolymer of epichlorohydrin ( ECH )-allyglycidyl ether ( AGE ) was prepared with Al (i-Bu) 3-H3PO4-H2O- N(CH3 ) 2 ( DMA) catalyst system. 用Al(i-Bu)_3-H_3PO_4-H_2O-DMA(二甲基苯胺)四元催化剂合成了环氧氯丙烷(ECH)/烯丙基缩水甘油醚(AGE)共聚物。
The oxidative carbonylation of phenol to DPC catalyzed by palladium complexes catalyst system (PdCl2+ Cu(OAc)2+ TBAB+ H2BQ) has been studied. 开发出了苯酚氧化羰基化直接合成碳酸二苯酯钯系络合物催化体系：PdCl_2+Cu(OAc)_2+TBAB+H_2BQ；
Several developed and developing methods for guaiacol synthesis are introduced in this paper.The catalyst systems for guaiacol synthesis by alkylation of catechol are compared. 介绍了多种已经工业化和当前正在研究的愈创木酚的合成方法,比较了以邻苯二酚为原料进行酚类烷基化反应合成愈创木酚所用的各种催化剂体系性能。
Styrene butadiene rubber (SBR) was cyclized with the aid of cationic catalyst system based on diethylaluminum chloride(Al) and benzyl chloride(RCl). 应用一氯二乙基铝和苄基氯催化剂体系进行了丁苯橡胶的阳离子环化反应。
Effect of cellon existing in the catalyst system on olefin polymerization was examined by Fourier transform infrared spectroscopy (FT-IR). 用FT-IR法研究了四氯乙烷在烯烃聚合催化剂体系中的作用。
Do all computers use binary system? 所有的计算机都使用二进制吗？
The chemorheology of multiphase/cure system of polyurethane materials was studied by using different quantity of catalyst for each catalyst system. 通过采用不同催化体系及在同一体系下不同催化剂的用量,研究了聚氨酯交联多相体系的化学流变性。
This paper reviews recent development of cyclic olifen ring-opening metathesis polymerization. The catalyst systems for the polymerization are described in detail. 本文综述了近年来环烯烃开环易位聚合研究的新进展,并对这些体系的催化剂作了详细的描述。
The catalyst system used in the synthesis of Maleic acid ester,such as inorganic acid,ion exchange resin and solid acid,was introduced. 本文介绍了国内外马来酸二甲酯合成中的催化剂体系,有无机酸、离子交换树脂、固体酸等。