Preparation and characterization of polyphenylene sulfide-based chelating fibers

A series of novel chelating fibers containing sulfur,nitrogen,oxygen heteroatoms were prepared via the functionalization of chloromethylated polyphenylene sulfide(CMPPS).The structures,micromorphology and physicochemical properties of these fibrous adsorptive materials were characterized by FT-IR,elementary analysis,TG and SEM-EOS.The results show that chelating fibers had high functional group contents(3.94 mmol/g for thiourea,3.85 mmol/g for mercapto,5.00 mmol/g for methylamine and6.07 mmol/g for ethylenediamine.respectively).Owing to the unique matrix of polyphenylene sulfide fiber,these fibrous adsorbents possess excellent thermostability.This synthetic method proved a simple and efficient way for the preparation of chelating fibers.