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智能双响应油水分离材料的合成

张祺 薛鸿燕 王浩乾 胡渼堃 韩小茜 王农

张祺, 薛鸿燕, 王浩乾, 等. 智能双响应油水分离材料的合成[J]. 复合材料学报, 2024, 42(0): 1-7.
引用本文: 张祺, 薛鸿燕, 王浩乾, 等. 智能双响应油水分离材料的合成[J]. 复合材料学报, 2024, 42(0): 1-7.
ZHANG Qi, XUE Hongyan, WANG Haoqian, et al. Synthesis of smart dual-response oil-water separation material[J]. Acta Materiae Compositae Sinica.
Citation: ZHANG Qi, XUE Hongyan, WANG Haoqian, et al. Synthesis of smart dual-response oil-water separation material[J]. Acta Materiae Compositae Sinica.

智能双响应油水分离材料的合成

基金项目: 甘肃省重点研发计划项目(23YFGA0044),甘肃省中小企业创新基金项目资助(1407GCCA013)
详细信息
    通讯作者:

    韩小茜, 教授,主要从事高分子复合材料等领域的研究。 E-mail: hxqnv2011@163.com

    王农,教授,研究方向: 材料物理与化学。 E-mail: wangnong07@163.com

  • 中图分类号: TB381; TB332

Synthesis of smart dual-response oil-water separation material

Funds: Gansu Province Key Research and Development Program (23YFGA0044), Innovation Fund of Small and Medium-sized Enterprises of Gansu Province (1407GCCA013)
  • 摘要: 智能材料是一种具有感知、响应和适应环境能力的材料。随着科技的不断发展,智能材料在各个领域的应用越来越广泛,未来的发展前景十分广阔。本文合成了一种含有羧基及可聚合基团的偶氮苯化合物,以该偶氮苯化合物作为光响应单元,甲基丙烯酸二甲氨乙酯作为pH响应单元,采用可逆加成-断裂链转移(RAFT)聚合与甲基丙烯酸羟乙酯进行一步共聚,得到了光和pH智能双响应三元共聚物。聚合物涂层在不同条件的刺激下接触角最大变化可达120.2°,经过亲水-疏水的多次转换,接触角仍可以恢复到初始状态,具有优异的可逆刺激响应能力。将聚合物涂敷在无纺布上制成光/pH双响应油水分离膜,该膜在亲油疏水与亲水疏油之间发生可逆转变,实现选择性油水分离,单次分离效率分别达96.3%和95.8%。这种对光和pH的刺激响应性使其可用于复杂环境的液体传输和油水分离等领域,具有巨大的智能水油分离应用潜力。

     

  • 图  1  偶氮苯单体及聚合物的合成路线 (a,b: 中间体, c:单体, d: 聚合物)

    Figure  1.  Synthetic route of azobenzene monomer and polymer (a,b: intermediate, c: monomer, d: polymer)

    图  2  中间体a、b,单体c和聚合物d的傅里叶红外谱图

    Figure  2.  FT-IR of azobenzene intermediates a,b, monomer c and polymer d

    图  3  偶氮苯单体和聚合物的核磁共振氢谱图

    Figure  3.  1HNMR of azobenzene monomer and polymer

    图  4  偶氮苯单体的UV-Vis吸收光谱变化图

    Figure  4.  UV-Vis absorption spectra of azobenzene monomer

    图  5  无纺布的SEM图像(a);油水分离膜的SEM图像(b)

    Figure  5.  SEM image of blank non-woven fabric (a); SEM image of oil-water separation membrane (b)

    图  6  聚合物d的载玻片涂层在不同条件下的接触角变化: (a) 自然条件下; (b) 经pH=3缓冲溶液浸泡后; (c) 经pH=10缓冲溶液浸泡后; (d) 经365 nm光照射后; (e) 经445 nm光照射后; (f) 经pH=3缓冲溶液浸泡并用365 nm紫外光照射后

    Figure  6.  Contact angle variation of polymer d slide coatings under different conditions: (a) the natural state; (b) after immersion with pH=3 buffer solution; (c) after immersion in pH=10 buffer solution; (d) after exposure to 365 nm light; (e) after exposure to 445 nm light; (f) after immersion in pH=3 buffer solution and irradiation with 365 nm ultraviolet light

    图  7  聚合物d的载玻片涂层在不同pH和光照下的接触角的可逆变化情况

    Figure  7.  Contact angle reversible variation of polymer d slide coatings under different pH and light conditions

    图  8  聚合物d无纺布涂层的油水分离实验

    Figure  8.  Oil-water separation experiment of non-woven coating with intelligent response polymer d

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出版历程
  • 收稿日期:  2024-03-21
  • 修回日期:  2024-04-16
  • 录用日期:  2024-04-20
  • 网络出版日期:  2024-05-24

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