China). Polyacrylonitrile (PAN, 99%), allyl glycidyl ether (AGE, 99%),
[2-(methacryloyloxy)ethyl]dimethyl-(3-sulfopropyl)ammonium hydroxide
(SBMA), hydroxylamine hydrochloride (NH2OH·HCl, 99%),
poly(vinyl alcohol) (PVA), and N,N-dimethyl-formamide (DMF, 99.9%) were purchased from Macklin Biochemical
Co., Ltd. (Shanghai, China). Sodium hydroxide (NaOH), hydrochloric
acid (HCl), sodium carbonate (Na2CO3), tetrabutylammonium
hydroxide (TBAOH, 10%), ammonium persulfate (APS), lithium fluoride
(LiF), lithium chloride (LiCl), sodium chloride (NaCl), potassium
chloride (KCl), magnesium chloride (MgCl2), zinc chloride
(ZnCl2), aluminum chloride (AlCl3), and lithium
sulfate (Li2SO4) were purchased from Sinopharm
Chem. Reagent Co., Ltd. (Beijing, China).