tetrahydrate

The results are summarized as follows: 1. The effect of four kinds of promoters ( potassium carbonate, EDTA, potassium sodium tartrate tetrahydrate, succinic acid) were investigated, further discussion about the activate species and the principles of selecting promoters were carried on.

结果如下：1.研究了四种助剂（碳酸钾，EDTA，酒石酸钾钠，丁二酸）对甲醇气相氧化羰基化催化剂性能的影响，并对催化剂活性物种的类型和助剂选择方法进行了探讨。

Controlled/ "living" radical polymerization of methyl methacrylate ( MMA) initiated by benzyl chloride has been achieved by atom transfer radical polymerization ( ATRP) catalyzed by iron dichloride tetrahydrate/ triphenyl phosphine complexes at 90 ℃.

以氯化苄（C6H5CH2Cl）/四水合氯化亚铁/三苯基膦为引发体系，在90℃下引发甲基丙烯酸甲酯进行原子转移自由基活性/可控聚合反应（ATRP）。

Through the study on the synthetic process, the optimum technological conditions were obtained, which were as follows: the molar ratio of cyclohexanone to sodium perborate tetrahydrate was 1 ∶ 1.5, the reaction temperature was 80 ℃ and the reaction time was 3 h.

通过对ε己内酯合成工艺条件的研究，得到了最佳合成工艺条件：环己酮与过硼酸钠四水化合物摩尔比为1∶1.5，反应时间3h，反应温度80℃。