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首页> 外文期刊>Journal of Applied Polymer Science >Codeposition of catechol-polyethyleneimine followed by interfacial polymerization for nanofiltration membranes with enhanced stability
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Codeposition of catechol-polyethyleneimine followed by interfacial polymerization for nanofiltration membranes with enhanced stability

机译：儿茶酚 - 聚乙烯亚胺的标准沉积，然后进行纳米过滤膜的界面聚合，具有增强的稳定性

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摘要

Thin-film composite (TFC) nanofiltration (NF) membranes were fabricated via the codeposition of catechol (CCh) and polyethyleneimine (PEI) followed by subsequent interfacial polymerization with trimesoyl chloride (TMC) on the surface of polysulfone ultrafiltration substrates. The detailed structures and surface properties were characterized by X-ray photoelectron spectroscopy, Fourier transform infrared spectroscopy, scanning electron microscopy, potential analysis, and water contact angle measurement. The surface properties, including the roughness, hydrophilicity, surface potential, and NF performances, were facilely tuned through variation of the codeposition time of CCh-PEI for the prepared TFC membranes. The optimized membrane achieved a high rejection (ca. 93%) of MgCl2 with a flux of around 31L m(-2) h(-1) under 0.7 MPa. The results also reveal that the codeposition process endowed the final membranes with much better structural stability in alcohol and improved chlorine resistance compared to commonly interfacial polymerized ones with PEI and TMC. (c) 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 45422.
机译：通过CATOCHOL（CCH）和聚乙烯亚胺（PEI）的重定位制造薄膜复合物（TFC）纳米滤膜（NF）膜，然后在聚砜超滤衬底的表面上用随后的界面聚合与三咪酰氯化物（TMC）进行界面聚合。通过X射线光电子能谱，傅里叶变换红外光谱，扫描电子显微镜，电位分析和水接触角测量来表征详细的结构和表面性质。通过CCH-PEI的CCH-PEI用于制备的TFC膜的分数时间来促进表面性质，包括粗糙度，亲水性，表面电位和NF性能，包括粗糙度，亲水性，表面电位和NF性能。优化的膜在0.7MPa下达到约31Lm（-2）H（-1）约31Lm（-2）H（-1）的助熔剂，达到了高抑制（Ca.93％）MgCl 2。结果还表明，与普通界面聚合的乙醇与PEI和TMC相比，该沉积过程赋予了最终膜，其具有更好的醇中的结构稳定性和改善的氯抗性。 （c）2017 Wiley期刊，Inc.J.Phill。聚合物。 SCI。 2017,134,45422。

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  • 来源
    《Journal of Applied Polymer Science》 |2017年第42期|共9页
  • 作者

    Qiu Wen-Ze; Du Yong; Lv Yan; Yang Hao-Cheng; Xu Zhi-Kang;

  • 作者单位

    Zhejiang Univ Dept Polymer Sci &

    Engn Key Lab Macromol Synth &

    Functionalizat Minist Educ Hangzhou 310027 Zhejiang Peoples R China;

    Zhejiang Univ Dept Polymer Sci &

    Engn Key Lab Macromol Synth &

    Functionalizat Minist Educ Hangzhou 310027 Zhejiang Peoples R China;

    Zhejiang Univ Dept Polymer Sci &

    Engn Key Lab Macromol Synth &

    Functionalizat Minist Educ Hangzhou 310027 Zhejiang Peoples R China;

    Zhejiang Univ Dept Polymer Sci &

    Engn Key Lab Macromol Synth &

    Functionalizat Minist Educ Hangzhou 310027 Zhejiang Peoples R China;

    Zhejiang Univ Dept Polymer Sci &

    Engn Key Lab Macromol Synth &

    Functionalizat Minist Educ Hangzhou 310027 Zhejiang Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 高分子化合物工业（高聚物工业）;
  • 关键词

    membranes; separation techniques; surfaces and interfaces;

    机译：膜;分离技术;表面和界面;

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