阴离子型离子交换树脂D301-g-PDMC的制备及其对AuCl_4^-的吸附性能初探  

Preparation of anion ion exchange resin D301-g-PDMC and preliminary research of its adsorption property towards AuCl_4^-

作　　者：李敏[1,2] 薛小艳[2] 王勇 安富强[1,2] 胡拖平[2] 袁志国[1] 

机构地区：[1]中北大学超重力化工过程山西省重点实验室,山西太原030051 [2]中北大学理学院,山西太原030051

出　　处：《应用化工》2017年第10期1906-1910,共5页Applied Chemical Industry

基　　金：国家自然科学基金项目(21676258);科技部国际合作交流项目(2011DFA51980);山西省自然科学基金项目(201601D102021);超重力化工过程山西省重点实验室基金(CZL201501);山西省国际合作交流项目(2015081043)

摘　　要：通过溶液中的过硫酸铵与D301树脂表面的叔胺基形成氧化-还原引发体系,将水溶性阳离子烯类功能单体甲基丙烯酰氧乙基三甲基氯化铵(DMC)接枝到D301树脂表面,制得了新型阴离子型离子交换树脂D301-g-PDMC。考察了主要接枝条件(时间、温度、引发剂及单体用量)对接枝度的影响,并研究了D301-g-PDMC对AuCl_4^-的吸附性能。结果表明,反应时间为10 h,反应温度为35℃,过硫酸铵用量为1.6%,DMC用量为17 m L时,PDMC的接枝度最高,可达26.67%。D301-g-PDMC对AuCl_4^-有很强的吸附能力,吸附容量可以达到748.03 mg/g。此外,D301-g-PDMC对AuCl_4^-的吸附效率可达97.83%。The water-soluble cationic functional monomer methacryloxyethyltrimethyl ammonium chloride（ DMC） was grafted to the surface of D301 resin via the oxidation-reduction initiating system composed of ammonium persulfate（ APS） and amino group of D301 resin,and a novel anion ion exchange resin D301-g-PDMC was prepared. The effects of the grafting conditions（ time,temperature,dosage of initiator and monomer） on the grafting degree were investigated,and the adsorption property of the D301-g-PDMC towards AuCl4-was studied preliminarily. The results showed that the grafting degree of PDMC could reach26. 67% the conditions of reaction time 10 h,reaction temperature 35 ℃,APS 1. 6%,and DMC 17 m L.D301-g-PDMC has a excellent adsorption capacity towards AuCl4-. Which could reach 748. 03 mg/g. In addition,the adsorption efficiency was as high as 97. 83%.

关 键 词：D301树脂 甲基丙烯酰氧乙基三甲基氯化铵 接枝聚合 AuCl4- 吸附 

分 类 号：TQ316.343[化学工程—高聚物工业] O647.33[理学—物理化学]