Improved oxygen permeation of a multi-stranded network two-dimensional polymer synthesized by three-step polymerizations of a novel monomer bearing three different polymerizable groups followed by photoexfoliation

POLYMER

卷:228

Article

Cheng, Kehan¹  Teraguchi, Masahiro¹  Kaneko, Takashi¹  Aoki, Toshiki¹ 

[1] Niigata Univ, Grad Sch Sci & Technol, Dept Chem & Chem Engn, Nishi Ku, Ikarashi 2-8050, Niigata 9502181, Japan

关键词: Oxygen permeation membranes;    Multi-stranded polymer;    Network polymer;    Two-dimensional polymer;    Membrane reaction;    Polymer reaction;    Photoexfoliation;   

DOI  :  10.1016/j.polymer.2021.123857

来源: Elsevier

【 摘 要 】

We synthesized a novel multi-stranded network two-dimensional polymer (2DP) by three-step polymerizations of a new acetylene monomer bearing three different polymerizable groups, two styrenes and one allyl group, followed by photoexfoliation. The starting linear polyacetylene was soluble and fabricated as a good self-supporting membrane, and the following two polymerizations, photo-induced radical addition polymerization and acyclic diene metathesis polycondensation, were carried out in the membrane states. The resulting membranes maintained self-supporting properties. Finally, 2DP was obtained by highly selective photocyclic aromatization (SCAT) of the original polyacetylene backbone. As a result, both of the oxygen permeability and permselectivity increased simultaneously and the performance was placed above the upper bound line.

【 授权许可】

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