CIESC Journal ›› 2020, Vol. 71 ›› Issue (12): 5636-5643.DOI: 10.11949/0438-1157.20200623

• Separation engineering • Previous Articles     Next Articles

Separation of phenyllactic acid from transformation broth by anion exchange poly(2-hydroxyethyl methacrylate) composite cryogel embedded with nanogels

HE Yawei1,2(),ZHANG Songhong2,HUANG Jie2,LIU Liu2,LI Guohua2,YUN Junxian2()   

  1. 1.Shaanxi Energy Institute, Xianyang 712000, Shaanxi, China
    2.State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, Zhejiang, China
  • Received:2020-05-21 Revised:2020-07-07 Online:2020-12-05 Published:2020-12-05
  • Contact: YUN Junxian

内嵌纳凝胶阴离子交换聚甲基丙烯酸羟乙酯复合晶胶分离苯乳酸研究

贺亚维1,2(),张颂红2,黄杰2,刘流2,李国华2,贠军贤2()   

  1. 1.陕西能源职业技术学院,陕西 咸阳 712000
    2.浙江工业大学化学工程学院,绿色化学合成技术国家重点实验室 培育基地,浙江 杭州 310032
  • 通讯作者: 贠军贤
  • 作者简介:贺亚维(1973—),女,硕士,副教授,1043991315@qq.com
  • 基金资助:
    国家自然科学基金项目(21576240);浙江省自然科学基金项目(LY16B060011)

Abstract:

Hydrophobic nanogels were synthesized by emulsion polymerization method under ultrasound using butyl methacrylate as the monomer. Then, anion exchange nano-cryogels embedded with the obtained nanogels were prepared by cryo-polymerization using poly(2-hydroxyethyl methacrylate) as the monomer, followed by a graft polymerization with the monomer (vinylbenzyl) trimethyl ammonium chloride. The anion exchange nano-cryogels were used to isolate phenyllactic acid from biotransformation broth. The results show that the obtained nanocrystalline gel has good permeability and axial dispersion performance. When the flow rate is 1 cm·min-1, the adsorption capacity of different ratios of nanocrystalline gel for bovine serum protein is 3.9—5.4 mg·ml-1. When the nano-cryogel with mass ratio of 8∶2(HEMA∶pBMA) was used to isolate phenyllactic acid from transformation broth, phenyllactic acid with high purity of 89.24% and recovery of 93.74% was obtained, indicating that the nano-cryogels could have potential applications in bioseparation.

Key words: nanogels, nano-cryogels, adsorption, phenyllactic acid

摘要:

采用超声乳化聚合法制备了聚甲基丙烯酸丁酯纳凝胶,然后经结晶致孔法制备了内嵌纳凝胶的甲基丙烯酸羟乙酯纳晶胶,对其接枝功能单体N,N,N-三甲基乙烯基苯甲氯化铵,得到内嵌纳凝胶阴离子交换纳晶胶,用于从发酵液中分离苯乳酸。结果表明:所得纳晶胶具有良好的渗透性能和轴向分散性能,在流速为1 cm·min-1时,不同配比纳晶胶对牛血清白蛋白的吸附容量为3.9~5.4 mg·ml-1;将质量比为 8∶2(HEMA∶pBMA)的纳晶胶用于从转化液中分离苯乳酸,所得苯乳酸的纯度达89.24%,回收率93.74%,分离效果好,表明其在生物分离方面有良好的应用前景。

关键词: 纳凝胶, 纳晶胶, 吸附, 苯乳酸

CLC Number: