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疏水/亲水大孔聚二乙烯基苯/聚(N-2-氨基乙基丙烯酰胺)IPN树脂的合成及对水杨酸吸附性能研究
  • ISSN号:1000-3304
  • 期刊名称:《高分子学报》
  • 时间:0
  • 分类:O632.13[理学—高分子化学;理学—化学] TQ326.407[化学工程—合成树脂塑料工业]
  • 作者机构:[1]湖南师范大学化学化工学院,长沙410081, [2]湖南城市学院化学与环境工程系,益阳413000
  • 相关基金:国家自然科学基金(基金号20474015)和湖南省教育厅科研项目(项目号07C185)资助项目;
中文摘要:

采用分步悬浮聚合法制备了聚二乙烯基苯/聚丙烯酸甲酯(PDVB/PMA)大孔互穿聚合物网络,将其中的聚丙烯酸甲酯用乙二胺氨解,合成了具有疏水/亲水性能的聚二乙烯基苯/聚(N-2-氨基乙基丙烯酰胺)(PDVB/PNAEAM)大孔互穿聚合物网络(IPN);测定了该树脂的孔结构、含水量、弱碱交换量和溶胀性能;测定了该树脂对水杨酸在不同温度下的吸附等温线,利用热力学函数关系计算出了吸附焓、自由能和熵.推测PDVB/PNAEAM IPN树脂中疏水性的PDVB一网具有疏水作用吸附能力、亲水性的PNAEAM一网具有氢键作用吸附能力.动态吸附及脱附实验表明湿态PDVB/PNAEAM IPN树脂对水溶液中水杨酸的饱和吸附量达到46.1mg/mL.树脂可以通过4%NaOH溶液再生.PDVB/PNAEAM IPN树脂在分离工业废水中水杨酸等芳香有机酸有良好的应用前景.

英文摘要:

The objective of this work was to develop an adsorption resin for removing aromatic acid contaminations of aqueous environment.The macroporous polydivinylbenzene/poly(methyl acrylate) interpenetrating polymer network was prepared by sequential suspension polymerization method;it was then converted to the hydrophobic-hydrophilic macroporous polydivinylbenzene/poly(N-2-aminoethylacrylamide) interpenetrating polymer network(PDVB/PNAEAM IPN) by aminolysis with ethylenediamine.The hydrophobic PDVB part in PDVB/PNAEAM IPN resin has the ability of adsorption through hydrophobic interaction;on the other hand the hydrophilic PNAEAM part has the ability of adsorption by means of hydrogen bonding.For the adsorption studies salicylic acid was chosen as the representative of aromatic acids,because there is a hydrophobic benzene ring and a hydrophilic hydroxyl group in the molecule.The pore structure,the weak base exchange capacity,the water retention capacity and the swelling ratio of PDVB/PNAEAM IPN resin were measured.The adsorption isotherms of salicylic acid at different temperatures were studied.Isothermal adsorption enthalpy,Gibbs free energy and entropy were calculated according to thermodynamic equations.The saturated adsorption capacity for salicylic acid was up to 46.1 mg/mL(wet resin) according to the dynamic adsorption and desorption experiments.The resin can be regenerated by 4% NaOH.The results of adsorption for salicylic acid indicate that the PDVB/PNAEAM IPN resin may have a promising prospect in separating aromatic acid from waste water in industry.

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期刊信息
  • 《高分子学报》
  • 中国科技核心期刊
  • 主管单位:中国科学院
  • 主办单位:中国化学会 中国科学院化学研究所
  • 主编:张希
  • 地址:北京市海淀区中关村北一街2号
  • 邮编:100190
  • 邮箱:gfzxb@iccas.ac.cn
  • 电话:010-62588927
  • 国际标准刊号:ISSN:1000-3304
  • 国内统一刊号:ISSN:11-1857/O6
  • 邮发代号:2-498
  • 获奖情况:
  • 国家优秀期刊二等奖,中科院优秀期刊二等奖,中国科协优秀期刊
  • 国内外数据库收录:
  • 俄罗斯文摘杂志,美国化学文摘(网络版),荷兰文摘与引文数据库,美国科学引文索引(扩展库),英国高分子图书馆,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊(2004版),中国北大核心期刊(2008版),中国北大核心期刊(2011版),中国北大核心期刊(2014版),中国北大核心期刊(2000版)
  • 被引量:19174