In this paper, two polyester liquid crystal ( butanediol ester liquid crystal and diethylene glycol ester liquid crystal ) were synthesized with methyl p-hydroxybenzoate, 1,4-butanediol, diethylene glycol, terephthalic acid and thionyl chloride as materials through three steps. 本文以对羟基苯甲酸甲酯(E218)、1,4-丁二醇、一缩二乙二醇、对苯二甲酸与氯化亚砜为原料通过三步合成了丁二醇酯液晶与一缩二乙二醇酯液晶。
Kinetics study of the reduction of np (ⅵ) by methyl p-hydroxybenzoate 对羟基苯甲酸甲酯(E218)还原Np(Ⅵ)的动力学研究
The Crystal Growth and Optical Properties of Methyl p-hydroxybenzoate(E218) 对羟基苯甲酸甲酯(E218)单晶生长和光学性能
Bis ( p-hydroxybenzonic acid butanediolate )( BBHB ) as mesogenic unit was prepared with methyl p-hydroxybenzoate, 1,4-butanediol and catalyst by melting transesterification. 以对羟基苯甲酸甲酯(E218)、1,4丁二醇为主要原料,经熔融酯交换合成介晶基元双-对羟基苯甲酸丁二醇酯(BBHB);
Methyl, ethyl and butyl p-hydroxybenzoate were synthesized on SO_4 ~ ( 2 - ) / bentonite catalyst. 考察了SO4~(2-)/膨润土固体酸催化剂在对羟基苯甲酸与甲醇、乙醇、正丁醇酯化反应中的作用,以及反应时间,催化剂用量和溶剂对酯化反应的活性的影响。