SUPRAMOLECULAR CHELATING RESINS——DESIGN,SYNTHESES AND ADSORPTION PROPERTIES OF CELLULOSE GRAFTED WITH CALIX[4]ARENE

YANG Fafu; CHEN Xilei; GUO Hongyu; CAI Xiuqin

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SUPRAMOLECULAR CHELATING RESINS——DESIGN,SYNTHESES AND ADSORPTION PROPERTIES OF CELLULOSE GRAFTED WITH CALIX[4]ARENE

Research Article | 更新时间：2021-03-19

- SUPRAMOLECULAR CHELATING RESINS——DESIGN,SYNTHESES AND ADSORPTION PROPERTIES OF CELLULOSE GRAFTED WITH CALIX[4]ARENE
- Acta Polymerica Sinica Issue 6, Pages: 896-901(2005)
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- Published：20 December 2005，
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YANG Fafu, CHEN Xilei, GUO Hongyu, CAI Xiuqin. SUPRAMOLECULAR CHELATING RESINS——DESIGN,SYNTHESES AND ADSORPTION PROPERTIES OF CELLULOSE GRAFTED WITH CALIX[4]ARENE. [J]. Acta Polymerica Sinica (6):896-901(2005)
DOI：

YANG Fafu, CHEN Xilei, GUO Hongyu, CAI Xiuqin. SUPRAMOLECULAR CHELATING RESINS——DESIGN,SYNTHESES AND ADSORPTION PROPERTIES OF CELLULOSE GRAFTED WITH CALIX[4]ARENE. [J]. Acta Polymerica Sinica (6):896-901(2005) DOI：

摘要

通过纤维素多乙烯多胺衍生物2a～2c与1

3-二环氧丙基杯[4]芳烃3反应

合成了螯合树脂杯芳烃接枝纤维素4a～4c

用红外、元素分析和SEM等对其结构和形貌进行了表征.通过含氮量推算出新螯合树脂4a～4c中每个纤维素单元的杯芳烃接枝取代度分别为0.75、0.82和0.87.金属阳离子吸附性能实验表明

杯芳烃单元的引入在吸附过程中有重要作用

该螯合树脂结合了杯芳烃和纤维素的各自吸附性能优势

不仅吸附容量较高

而且表现出高的选择性吸附能力.树脂4b和4c对Ni2+离子表现出很高的吸附选择性

4a～4c的Ni2+饱和吸附容量分别达到2.96 mmol/g、2.93mmol/g和2.66mmol/g.在pH<4的强酸性条件下树脂的吸附能力迅速下降.该树脂用10%的氨水解吸附后有较好的重复使用性.

Abstract

A series of novel cellulose resins grafted with calix [4] arene 4a～4c were obtained by reactions of eellulose poly (ethyleneimine) derivatives 2a～2c with 1

3-bis-epoxypropyl Calix [4] arene 3．The structure and appearance of the chelming resins were characterized by IR

element analyses and SEM images．The degree of substitution of calixarene in 4a～4c was 0.75

0.82 and 0.87

respectively．The adsorption experiments of 4a～4c towards a series of cations showed that the calixarene units played an important role in adsorption．These resins combined the adsorption advantages of cellulose derivatives and calixarene polymers

exhibited not only high adsorption capacities．but also high adsorption selectivity．Chelating resins 4b and 4c showed very high adsorption selectivitv towards Ni2+．The saturated adsorption capabilities of 4a～4c were as high as 2.96

2.93 and 2 66mmol/g

respectively．The adsorption capacities of 4a～4c decreased remarkably when pH<4

andthey can be reused by desorption with aqueous solutions of 10％ ammonium hydroxde.

关键词

杯[4]芳烃纤维素合成吸附镍离子

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Technical Institute of Physics and Chemistry, Chinese Academy of Sciences

Zhong Ke San Huan Research

Center for Degradable and Flame-Retardant Polymeric Materials, College of Chemistry, State Key Laboratory of Polymer Materials Engineering, National Engineering Laboratory of Eco-Friendly Polymeric Materials Sichuan, Sichuan University

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