%0 Journal Article %A Aqiang WANG %A Yuzhang ZHU %A Jian JIN %T Preparation of Carboxyl-betaine Polyurethane Hydrogel and Study on Its Underwater Anti-crude-oil-adhesion Property %D 2021 %R 10.7503/cjcu20200697 %J Chemical Journal of Chinese Universities %P 1246-1252 %V 42 %N 4 %X

Quaternary ammonium ionic diol was synthesized by nucleophilic substitution reaction between ethyl 4-bromobutyrate and N-Methyldiethanolamine. Then, polyurethane prepolymer was prepared via the polymerization of the quaternary ammonium ionic diol and hexamethylene diisocyanate(HDI) trimer. By the process of alkaline hydrolysis, carboxyl-betaine polyurethane hydrogel with different hydrolysis time was finally obtained. The result shows the underwater oil contact angles of hydrolyzing-for-60-min carboxyl-betaine polyurethane hydrogel for cetane, kerosene, petroleum ether, isooctane and even crude oil are all above 160° and the corresponding underwater oil-adhesion forces are all 0. Carboxyl-betaine polyurethane hydrogel with excellent underwater anti-crude-oil-adhesion was successfully prepared.

%U http://www.cjcu.jlu.edu.cn/EN/10.7503/cjcu20200697