Disclosed is an aromatic sulfonic acid ester derivative represented by the formula (1);
1
in the formula, X is an atom or a group selected from a halogen atom excluding fluorine, —OSO
3
CH
3
and —OSO
3
CF
3
, A is a divalent electron attractive group, B is a divalent electron donating group or a direct bonding, R
a
is a hydrocarbon group of 1 to 20 carbon atoms, Ar is an aromatic group having a substituent of —SO
3
R
b
(wherein R
b
is a hydrocarbon group of 1 to 20 carbon atoms), m is an integer of 0 to 10, n is an integer of 0 to 10 and k is an integer of 1 to 4. Also disclosed is a process for producing a polyarylene having a sulfonic acid group, which process comprises the steps of coupling polymerization of an aromatic compound containing the derivative of the formula (1), to prepare a polyarylene and hydrolysis of the polyarylene, and which process has high safety and is easily capable of controlling the amount of sulfonoc acid group introduced into a polymer and the introducing position thereof.
本发明公开了一种芳香
磺酸酯衍
生物,其
化学式为(1);其中,X是从卤素原子(不包括
氟)、—OSO3CH3和—OSO3CF3中选择的一个原子或基团,A是双价的电子吸引基团,B是双价的电子供给基团或直接键合,R是1至20个碳原子的烃基团,Ar是具有—SO3Rb(其中,Rb是1至20个碳原子的烃基团)取代基的芳香基团,m为0至10的整数,n为0至10的整数,k为1至4的整数。本发明还公开了一种制备具有
磺酸基的聚
芳烃的方法,该方法包括以下步骤:通过偶联聚合含有化合物(1)衍
生物的芳香化合物,制备聚
芳烃,然后
水解聚
芳烃。该方法具有高安全性,并且能够轻松控制引入聚合物中的
磺酸基的数量和引入位置。