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  • Congs on Jinxin, Jinxiu, Jingjing and Jing for the publication of JMS paper!
  • 来源:黄木华长聘教授个人网站 2025-05-25
  • The paper titled Highly

    porous polysalicylates via Grignard reagent triggered

    “three-in-one”polyesterification and their high-loading nanocomposite

    membranes for gas separation has been published.

    Journal of Membrane Science, 2025, 731, 124232.

    Porous

    organic polymers (POPs) with flexible linkers demonstrated some very

    unique properties, although the challenge remains to get high surface

    area. Herein, an efficient access to highly porous polysalicylates

    (named Mg@BIT-POP-60 and Mg@BIT-POP-61) with benzylic (sp3 C) ester

    linkage was developed by a powerful “threein-one” strategy aided by

    Grignard reagent. That is, three events of (i) deprotonation of benzylic

    (sp3) alcohol, (ii) activation of salicylate chemical switch for

    efficient polyesterification by Grignard reagents, and (iii) monolith

    loading of Mg2+ in the polymer happened simultaneously by only one

    simple operation, which lead to flexible polysalicylates with high BET

    surface area up to 549 m2 g?? 1. In addition, an easy processing

    technology named premixing-hot pressing (pm-HoP) was developed to make

    the nanocomposite membranes with high loadings of Mg@BIT-POP-61 (50 wt%)

    in polycaprolactone (PCL). The reversed H2/CO2 selectivity of 3.12

    favoring

    H2 was observed comparing with pristine PCL (0.3), as well

    as high H2 permeability of 5805 Barrer. This is a promising strategy to

    develop porous fillers-based nanocomposite membranes for overcoming

    trade-off effect in gas separation technology.

  • [来源:中国聚合物网]
  • 了解更多请进入: 黄木华长聘教授个人网站
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