supported by the National Key Research and Development Program of China(No.2018YFB1501503);National Natural Science Foundation of China(NSFC)(Nos.21878114,21908071,and 22038004);Natural Science Foundation of Guangdong,(2018B030311052,2020A1515011319,and 2020B1111380002);the Research Fund Program of Guangdong Provincial Key Lab of Green Chemical Product Technology(GC202107).
Lignin is a kind of natural green polymer with abundant active functional groups and designable molecular structure.In this work,the quaternized lignosulfonate(QLS)with amphoteric characteristic was prepared through c...