摘要
由聚[2′-氯乙基-2,3-环硫丙基醚]和多乙烯声胺反应,合成了四种以聚硫醚为主链的氧杂多乙烯多胺型螯合树脂,它们对贵金属离子Au(Ⅲ)、Pd(Ⅱ)、Pt(Ⅳ)、Ag^+等具有优良的吸附性能。
Four new chelate resins (PB1-4) containing a polythioether backbone and dioxymonosulfur polyethylene polyimines in side chain were synthesized by the reaction of poly (2'-chloroethyl-2, 3-epithiopropyl ether) with polyethylene polyamines. The adsorption capacities of resin PB for metal ions such as Au(Ⅲ), Pd(Ⅱ), Pt(IV), Ag+,Hg2+, Zn2+ and Pb2+ were determined and compared with the corresponding resin PC containing polyether backbone. The experimental results showed that the resin PB, especially PB3 and PB4, possessed good adsorption ability for noble metal ions. The maximum adsorption capacities for Au(Ⅲ), Pd(Ⅱ) and Pt(IV) were 1.47, 0.54 and 0.78 g metal/g resin, respectively. But the capacities of the resin PC were much lower than that of the resin PB. It is obvious that polythioether mainchain in the resin PB plays an important role in adsorption of noble metal ions.
出处
《高分子学报》
SCIE
CAS
CSCD
北大核心
1989年第1期10-10,共1页
Acta Polymerica Sinica
基金
国家自然科学基金
关键词
螯合树脂
贵金属
吸附
选择性
Chelating Resin, Noble metal, Selective Adsorption, Resm containing sulfur and nitrogen
