A method of: providing a solution of a dichloroaromatic compound having an electron-withdrawing group bound to each aromatic ring containing one of the chloride groups; an excess of a dihydroxyaromatic compound; an organic transition metal complex or a transition metal salt; a base; and a solvent; and heating the solution to a temperature at which the dichloroaromatic compound and the dihydroxyaromatic compound react to form an aromatic ether oligomer that is a dihydroxy-terminated compound or a dimetallic salt thereof. Water formed during the heating is concurrently distilled from the solution. A method of curing a phthalonitrile monomer in the presence of an acid and a curing agent to form a phthalonitrile thermoset.
一种方法:提供一种二
氯芳香化合物的溶液,其中每个含有
氯化物基团的芳香环上都结合有一个电子吸引基团;过量的二羟基芳香化合物;有机过渡
金属配合物或过渡
金属盐;碱和溶剂;并将溶液加热至二
氯芳香化合物和二羟基芳香化合物反应形成二羟基末端化合物或其二
金属盐的芳香醚寡聚体的温度。加热过程中产生的
水从溶液中同时蒸馏出来。一种在酸和固化剂存在下固化苯二腈单体形成苯二腈热固性材料的方法。