化工新型材料

化工新型材料 ›› 2020, Vol. 48 ›› Issue (1) : 120-124.

新材料与新技术

温敏性聚(NIPAM-co-ATU)微凝胶的制备及其对磷酸根离子吸附性能的研究

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Preparation of thermosensitive poly (NIPAM-co-ATU) microgel and its adsorption property for phosphate ion

Chen Yuyuan, Liu Chunlin, Zhang Cheng, Cheng Junfeng, Wu Dun, Cao Zheng

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Received		Published
2018-09-13		2020-01-20
Issue Date	Revised Date
2020-02-11	2018-09-13

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摘要

以N-异丙基丙烯酰胺(NIPAM)为主单体,N-烯丙基硫脲(ATU)作为功能性共聚单体,通过自由基聚合制备温敏性的P(NIPAM-co-ATU)微凝胶。利用傅里叶变换红外光谱、扫描电镜、粒径与Zeta电位分析仪、接触角测量仪、X射线光电子能谱和紫外分光光度计等对所制备的微凝胶的组成、形貌、尺寸、亲疏水性能、元素和磷酸根离子吸附性能进行了表征。结果表明,未加入ATU的PNIPAM微凝胶对磷酸根离子的吸附能力为32mg/g(以PO^3-₄计);由于硫脲基团与磷酸根离子的强烈吸附作用,P(NIPAM-co-ATU)微凝胶对磷酸根离子的吸附能力可达91mg/g。该种微凝胶材料有望应用到磷酸根离子的吸附、分离与回收领域。

Abstract

The thermosensitive P (NIPAM-co-ATU) microgels were prepared by free radical polymerization,using N-isopropyl acrylamide (NIPAM) as the main monomer and N-allyl thiourea (ATU) as the functional monomer.The composition,morphology,size,hydrophobicity,elements and absorption properties to phosphate ions of microgels were measured by FT-IR,SEM,particle size and zeta potential analyzer,contact angle test instrument,X-ray photoelectron spectroscopy,UV spectrophotometer,etc.The results showed that the adsorption capacity of PNIPAM microgels without ATU to phosphate ions was 32mg/g,and the adsorption capacity of P (NIPAM-co-ATU) microgels to phosphate ions can reach 91mg/g,because the thiourea group in ATU had strong adsorption to phosphate ions.This kind of microgel materials was expected to be applied to the field of adsorption,separation and recovery of phosphate ions.

关键词

温敏性微凝胶 / N-异丙基丙烯酰胺 / N-烯丙基硫脲 / 吸附 / 磷酸根离子

Key words

thermosensitive microgel / N-isopropylacrylamide / N-allyl thiourea / adsorption / phosphate ion

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温敏性聚(NIPAM-co-ATU)微凝胶的制备及其对磷酸根离子吸附性能的研究[J]. 化工新型材料, 2020, 48(1): 120-124 DOI:

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