一种新型含磷阻燃剂的合成

以邻苯基苯酚和三氯化磷为起始原料,路易斯酸为催化剂,合成了新型阻燃剂[(6 氧 6H 二苯并 (c,e)(1,2) 氧磷杂己环 6 酮) 甲基] 丁二酸(DDP),测定了DDP在丙酮 水混合体系中的溶解度。结果表明,质量百分数0.6的丙酮 水溶液是DDP重结晶较为合适的溶剂,为产品的纯化提供了基础数据。

新型阻燃剂DDP的合成

以 9,1 0 -二氢 -9-氧杂 -1 0 -磷杂菲 -1 0 -氧化物 (简称DOP)为起始原料 ,用两种方法合成了新型阻燃剂 [( 6-氧 -( 6H) -二苯并 -(c,e) ( 1 ,2 ) -氧磷杂己环 -6-酮 )甲基 ]-丁二酸 (简称DDP)。

液晶提纯方法综述

对液晶单体和混合液晶的提纯方法进行了论述和总结。

Measurement of Solubilities of o-Phenylphenol in Petroleum Ether and DDP in Acetone+Water Solution

[（6-oxide-6H-dibenze（c, e）（1, 2）oxaphosphorin-6-yl）methyl]-butanedioic acid （DDP） was prepared and characterized. Solubilities of o-phenylphenol（OPP） in petroleum ether and DDP in acetone ＋ water solution were measured by a gravimetrical method. The solubility data of OPP were well correlated using Francis equation. For the solubility of DDP in acetone aqueous solution, it was found that at each fixed temperature there existed a maximum when the acetone mass fraction in the solvent reached a certain concentration. The experiment shows that the fraction is approximately 0.6. The solubility data would be helpful for their industrial crystallization process.