The polymerization of isoprene with iron acetylacetonate(Fe)/triisobutylaluminum(Al)/dialkyl phosphite(DP) catalyst was examined with respect to the effects of different dialkyl phosphites (methyl,ethyl,n-butyl and iso-octyl),the ratios of the catalyst components,polymerization temperature and time.
以乙酰丙酮铁 (简称Fe) /三异丁基铝 (简称Al) /亚磷酸二烷基酯 (简称DP)为催化体系 ,对异戊二烯进行聚合 ,考察了不同DP(烷基为甲基、乙基、正丁基或异辛基 )、催化剂组成及反应条件对聚合的影响。
The method for synthesizing dialkyl phosphite from phosphorus trichloride was improved.
对用三氯化磷和醇合成亚磷酸二烷基酯方法进行了改进。
Methods of synthesizing dialkyl phosphite are described, the reaction principle, the used solvents, and properties of the synthesized dialkyl phosphite from phosphorus trihalidc and corresponding alcohols, are disccussed, especially.
对亚磷酸二烷基酯的各种合成方法进行了介绍,主要讨论了由三卤化磷和对应醇制备亚磷酸二烷基酯的合成反应、反应所采用的溶剂及合成的亚磷酸二烷基酯的性质。
subcopper dialkyldithiophosphate(CuDDP),are described.
阐述了润滑油添加剂二烷基二硫代磷酸亚铜(CuDDP)的合成工艺、作用机理,并通过CuDDP与ZnDDP的复配研究,制得了一种新型润滑油高效添加剂,对其主要指标进行了测试,润滑油性能评定结果表明该复合添加剂是一种新型高效润滑油添加剂。