Propylene glycol monoether acetate was synthesized using heteropoly acid as catalyst for the firsttime.

首次以杂多酸为催化剂采用酯化法合成二醇单乙醚乙酸酯。

The terpolymerization of propylene oxide (PO) and cyclohexene oxide (CHO) with carbon dioxide (CO2) was investigated.

摘要报元共聚物聚甲基乙撑-环己撑碳酸酯的制备与性能研究。

However,using THEIC initiator,the reaction rate for epichlorohydrin is faster than that of propylene oxide and 2-butoxyxirane,respectively.

在THEIC体系,就链引而言,环氧氯烷的大于环氧烷、丁基醚环氧乙烷。

Three Yuan second grade third rubbers (EPDM) is the ethylene, the propylene and the few non-conjugate diolefin copolymer.

元乙橡胶（EPDM）是乙、和少量非共轭二烃的共聚物。

It is proved effective that deep well aeration biological treat propylene technology is used to treat propylene epoxide saponated sewage.

实践证明,深井曝气生化处理技术处理环氧烷皂化污水是行之有效的。

The behavior of forming and cracking of carbenium ions was analyzed and the reaction pathway of propylene formation was summarized.

通过分析正碳离子的生成与裂解反应特点，探讨的生成规律。

Calcium ammine catalyst was prepared with metal calcium,dehydrated liquid ammonia as raw materials,nano-silica as a carrier and acetonitrile and propylene epoxide as modifiers.

采用金属钙、脱水液氨、载体纳米二氧化硅及改性剂乙腈与环氧烷制备出氨钙体系催化剂。