摘要
壳聚糖与环硫氯丙烷反应合成了一系列含S和N的交联型螫合树脂。这类树脂对贵金属离子如:金、银、钯、铂等具有优良的吸附性能。
In this paper syntheses and adsorption properties of some chelating resins which contain S and N, obtained by the reaction of chitonsan with chloromethylthiirane (I) were described. Crosslinking of chitosan by(I) at (I)/NH2 molar ratios of 0.5, 1.0, 2.0, 5.0 and 10.0 gave resins from PCS 1 to PCS 5, the S-content in resins increased with increasing of quanity of (I) used, while the N-content decreased.Within the series of PCS, the more the content of S% in the resins, the higher the adsorption capacities for noble metal ions The capacities of PCS 5(m mol/g) for Ag(I), Au(III), Pd(II) and Pt(IV) were 4.46, 4.86, 3.14 and 1.87 respectively. The adsorption percentage and selectivity of PCS 5 for the noble metals were also determined.
出处
《高分子学报》
SCIE
CAS
CSCD
北大核心
1991年第1期57-63,共7页
Acta Polymerica Sinica
基金
国家自然科学基金资助的课题
关键词
壳聚糖
螯合树脂
吸附性能
交联型
Chitosan, Chloromethylthlirane, Chelating resins containing S, N, Adsorption properties, Noble metal
