丙烯腈/马来酸共聚物膜的辐射法制备与性能
Preparation of acrylonitrile/maleic acid copolymer membranes using a radiation method and their properties
- 辐射研究与辐射工艺学报 2023年41卷第5期 页码：50201
- 作者机构：
1.精准智能化学重点实验室 中国科学技术大学高分子科学与工程系 合肥 230026
- 作者简介：
李搏，男，1995年4月出生，2018年6月于安徽大学获学士学位，目前为中国科学技术大学在读硕士研究生，材料加工工程专业
汪谟贞，博士，副教授，E-mail: pstwmz@ustc.edu.cn
葛学武，教授，E-mail: xwge@ustc.edu.cn
- 基金信息：国家自然科学基金(51973205;51773189);中央高校基本科研业务费专项资金(WK9110000066;WK3450000005;WK3450000006)
DOI：10.11889/j.1000-3436.2023-0041
中图分类号：
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李搏, 沈翔宇, 孙锐, 等. 丙烯腈/马来酸共聚物膜的辐射法制备与性能[J]. 辐射研究与辐射工艺学报, 2023,41(5):050201.
LI Bo, SHEN Xiangyu, SUN Rui, et al. Preparation of acrylonitrile/maleic acid copolymer membranes using a radiation method and their properties[J]. Journal of Radiation Research and Radiation Processing, 2023,41(5):050201.
李搏, 沈翔宇, 孙锐, 等. 丙烯腈/马来酸共聚物膜的辐射法制备与性能[J]. 辐射研究与辐射工艺学报, 2023,41(5):050201. DOI： 10.11889/j.1000-3436.2023-0041.
LI Bo, SHEN Xiangyu, SUN Rui, et al. Preparation of acrylonitrile/maleic acid copolymer membranes using a radiation method and their properties[J]. Journal of Radiation Research and Radiation Processing, 2023,41(5):050201. DOI： 10.11889/j.1000-3436.2023-0041.
摘要
丙烯腈（AN）与亲水性单体共聚是制备抗污性高分子材料的研究方向之一。本研究以丙烯腈为主单体，马来酸（MA）为共聚单体，二甲亚砜（DMSO）水溶液为溶剂，采用,60,Co γ-射线辐射引发AN/MA沉淀共聚反应合成AN/MA共聚物（P（AN-co-MA）），进一步采用相转化法，制备P（AN-co-MA）共聚物膜。研究了溶剂对单体转化率和共聚物分子量的影响，以及膜的孔隙率、亲水性、Zeta电势和抗污性能随马来酸酐（MAH）投料比的增加而发生的变化。结果表明：当以质量比为3∶2的DMSO/H,2,O混合体系为溶剂时，单体转化率达到80%以上，所得共聚物的分子量接近22万。随着MAH投料比从0%增加至30%（物质的量），共聚物的分子量逐渐减小，膜表面的孔隙率由17.2%增至25.1%，水接触角从50.8°减小到25.5°，Zeta电势由-11.8 mV降低至-22.7 mV。MAH物质的量投料比为30%的共聚物膜对牛血清白蛋白（BSA）的吸附量只有PAN均聚物膜的52.1%。本工作为利用辐射技术制备结构性能可调的聚丙烯腈基抗污染膜提供了有用的参考。
Abstract
Copolymerization of acrylonitrile (AN) with hydrophilic monomers is one of the research directions in the preparation of fouling-resistant polymeric materials. In this study, poly(acrylonitrile-co-maleic acid) copolymer (P(AN-co-MA)) membranes were prepared by ,60,Co γ-ray-induced copolymerization of AN and MA in a dimethyl sulfoxide (DMSO)/water mixed solvent. A phase inversion method was then applied. The effects of the solvent on the monomer conversion and molecular weight of the copolymer were investigated. The dependence of porosity, hydrophilicity, Zeta potential, and anti-fouling properties of the copolymer membranes on the molar feed ratio of maleic anhydride (MAH) was also studied. The results showed that in the DMSO/water mixed solvent under a mass ratio of 3∶2, the monomer conversion rate could reach over 80%, and the molecular weight of the obtained copolymer was close to 220 000. The porosity and hydrophilicity of the copolymer membrane increased with an increase in the molar feed ratio of MAH. The adsorption capacity of the copolymer membrane under a molar feed ratio of MAH of 30% for bovine serum albumin was only 52.1% of that of the polyacrylonitrile (PAN) homopolymer membrane. This study provides a useful reference for preparing PAN-based anti-fouling membranes with a controllable structure and properties using a radiation technique.
关键词
丙烯腈马来酸辐射共聚聚丙烯腈基亲水膜抗污性能
Keywords
AcrylonitrileMaleic acidRadiation-induced copolymerizationPAN-based hydrophilic membraneAnti-fouling
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