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- Poly (propylene carbonate) polyols was synthesized by the copolymerization of carbon dioxide with propylene oxide in the presence of double metallic catalyst in loop reactor. 摘要以二氧化碳3环氧丙烷为原材料,在双金属氰化物催化剂催化下,利用环流反应器合成聚碳酸亚丙酯多元醇。
- Star-shaped amphiphilic polymers with six hydrophilic poly(propylene oxide) (PPO) arms were firstly synthesized via anionic ring-opening polymerization of propylene oxide (PO) from a hydrophobic calix[6]arene core by means of the core-first method. 杯芳烃的多羟基的特征使其成为一种优良的合成星型高分子的“核”分子,本文由对叔丁基杯[6]芳烃出发,引发环氧丙烷(PO)的开环聚合,通过先核后臂的方法合成了六臂聚环氧丙烷(PPO)两亲星型聚合物,该星型聚合物的臂长可以由对叔丁基杯[6]芳烃和PO单体的投料比控制。
- A new process of Hydration of propylene oxide to glycols was introduced. 采用反应精馏新工艺由环氧丙烷水合制丙二醇。
- Under the same conditions, propylene oxide polymerization proceeded fasfer than ECH polymerization. 在同样的聚合反应条件下,环氧氯丙烷聚合反应速度大于环氧丙烷聚合反应速度。
- A new method for preparation of isopropanolamine from ammonia and propylene oxide in methanol was reported. 研究了在甲醇介质中用氨和环氧丙烷制备异丙醇胺的新工艺。
- The influence of reaction temperature and WHSV on conversion of propylene oxide is not appreciable. 反应温度和空速对环氧丙烷的转化率影响不大。
- The copolymerization between calcium lignosulfonate and propylene oxide was investigated in this paper. 以马尾松木质素磺酸钙与环氧丙烷为起始原料进行共聚反应。
- The terpolymerization of propylene oxide( PO) and cyclohexene oxide( CHO) with carbon dioxide( CO2) was investigated. 报道了三元共聚物聚甲基乙撑-己撑碳酸酯的制备与性能研究。
- A new method for recovering 1,2-dichloropropane from waste liquor in propylene oxide production was developed. 介绍了从环氧丙烷生产废液中回收1,2-二氯丙烷的新方法。
- Conclusion The damage of peripheral nerves and the centralperipheral axonopathy may be induced by propylene oxide. 结论环氧丙烷可致周围神经损害,为中枢-周围远端型轴索病。
- Abstract: A new process of Hydration of propylene oxide to glycols was introduced. 摘 要: 采用反应精馏新工艺由环氧丙烷水合制丙二醇。
- Etherification of propylene oxide with methanol using MAF solid base catalyst had been investigated. 研究了甲醇与环氧丙烷在固体碱催化剂MAF存在下非均相合成丙二醇甲醚的过程。
- The terpolymerization of propylene oxide (PO) and cyclohexene oxide (CHO) with carbon dioxide (CO2) was investigated. 报道了三元共聚物聚甲基乙撑-环己撑碳酸酯的制备与性能研究。
- Anew developing method for the preparation of propylene oxide from propylene chloro-hydrination is discussed. 讨论了一个新的丙烯氯醇化制备环氧丙烷流程的开发方法。
- Trimethylamine catalyzes the reaction of propylene oxide to polyethers, and causes the deactivation of TS-1. 碳酸钾使环氧丙烷选择性降低,三甲胺引起TS-1催化剂失活。
- Objective To study the toxic effect of propylene oxide on peripheral nervous system. 目的研究环氧丙烷对周围神经的毒性作用。
- Our business segments include Propylene Oxide and related products, Ethylene and derivatives / co-products, Inorganic Chemicals and Refining. 业务范围及产品包括环氧丙烷及其衍生物,乙稀及其衍生物,无机化学和炼油等。
- Y(CCl3 COO)3/ZnR2/Glycerol was used for the terpolymerization of carbon dioxide (CO2), propylene oxide (PO), and cyclohexene oxide (CHO). 摘要在稀土三元催化剂(三氯乙酸稀土配合物/二乙基锌/甘油)催化下实现了二氧化碳、环氧丙烷及环氧环己烷的三元共聚合。
- Simultaneously the development of product applications especially in the production of cyclohexanone oxime,propylene oxide,etc are briefly involved. 同时简略介绍了产品应用发展,特别是其在环己酮肟、环氧丙烷等生产工艺中的应用发展。
- However,using THEIC initiator,the reaction rate for epichlorohydrin is faster than that of propylene oxide and 2-butoxyxirane,respectively. 在THEIC体系,就链引发而言,环氧氯丙烷的大于环氧丙烷、丁基醚环氧乙烷。
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries