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A supramolecular approach towards strong and tough polymer nanocomposite fibers

机译：一种强硬聚合物纳米复合纤维的超分子方法

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摘要

Polymer nanocomposite fibers are important one-dimensional nanomaterials that hold promising potential in a broad range of technological applications. It is, however, challenging to organize advanced polymer nanocomposite fibers with sufficient mechanical properties and flexibility. Here, we demonstrate that strong, tough and flexible polymer nanocomposite fibers can be approached by electrospinning of a supramolecular ensemble of dissimilar and complementary components including flexible multiwalled carbon nanotubes (CNT), and stiff cellulose nanocrystals (CNC) in an aqueous poly(vinyl alcohol) (PVA) system. CNT and CNC are bridged by a water-soluble aggregation-induced-emission (AIE) molecule that forms - stacking with CNT via its conjugated chains, and electrostatic attraction with CNC through its positive charges leading to a soluble CNT-AIE-CNC ensemble, which further assembles with PVA through hydrogen bonds. A high level of ordering of the nanoscale building blocks combined with hydrogen bonding leads to a more efficient stress transfer path between the reinforcing unit and the polymer. The nanocomposite fiber mat is capable of selective detection of nitroaromatic explosives.
机译：聚合物纳米复合纤维是重要的一维纳米材料，其在广泛的技术应用中保持有希望的潜力。然而，通过充分的机械性能和柔韧性来组织先进的聚合物纳米复合纤维是挑战性的。这里，我们证明了强，坚韧且柔性的聚合物纳米复合纤维可以通过静体和互补成分的超分子整体静体，包括柔性多壁碳纳米管（CNT），并在水性聚（乙烯醇）（PVA）系统。 CNT和CNC由水溶性聚集诱导 - 发射（AIE）分子桥接，其通过其共轭链与CNT形成堆叠，并通过其阳性电荷与CNC的静电吸引力导致可溶性CNT-AIE-CNC集合体，通过氢键进一步与PVA组装。纳米级构建块的高水平顺序与氢键合结合，导致增强单元和聚合物之间的更有效的应力转移路径。纳米复合纤维垫能够选择性检测硝基芳族炸药。

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  • 来源
    《RSC Advances》 |2018年第19期|共6页
  • 作者

    Zhao Xiaojuan; Zheng Hongzhi; Qu Dan; Jiang Haijing; Fan Wei; Sun Yuyuan; Xu Yan;

  • 作者单位

    Jilin Univ State Key Lab Inorgan Synth &

    Preparat Chem 2699 Qianjin St Changchun 130012 Jilin Peoples R China;

    Jilin Univ State Key Lab Inorgan Synth &

    Preparat Chem 2699 Qianjin St Changchun 130012 Jilin Peoples R China;

    Jilin Univ State Key Lab Inorgan Synth &

    Preparat Chem 2699 Qianjin St Changchun 130012 Jilin Peoples R China;

    Jilin Univ State Key Lab Inorgan Synth &

    Preparat Chem 2699 Qianjin St Changchun 130012 Jilin Peoples R China;

    Jilin Univ State Key Lab Inorgan Synth &

    Preparat Chem 2699 Qianjin St Changchun 130012 Jilin Peoples R China;

    Jilin Univ State Key Lab Inorgan Synth &

    Preparat Chem 2699 Qianjin St Changchun 130012 Jilin Peoples R China;

    Jilin Univ State Key Lab Inorgan Synth &

    Preparat Chem 2699 Qianjin St Changchun 130012 Jilin Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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