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Preserving Mesoporosity in Type III Porous Liquids through Dual-layer Surface Weaving.
Li, Siqi; Wang, Dongxu; Lee, Yongjin; Li, Tao.
Afiliação
  • Li S; School of Physical Science and Technology, ShanghaiTech University, Shanghai, China, 201210.
  • Wang D; School of Physical Science and Technology, ShanghaiTech University, Shanghai, China, 201210.
  • Lee Y; Department of Chemical Engineering, Inha University, Incheon, Republic of Korea, 22212.
  • Li T; Department of Chemistry, School of Physics, Chemistry and Earth Sciences, University of Adelaide, Adelaide, SA, Australia, 5005.
Angew Chem Int Ed Engl ; 63(24): e202405288, 2024 Jun 10.
Article em En | MEDLINE | ID: mdl-38588044
ABSTRACT
The fundamental limitation for pore preservation in a Type III porous liquid (T3PL) is the need for a small aperture from the porous filler to realize size exclusion of a bulky solvent. We present a dual-layer surface weaving strategy that can disregard this limitation and achieve micro- and mesoporous metal-organic framework (MOF)-based T3PLs even with apertures much larger than the solvent molecules. By first weaving a tight network of poly(tert-butyl methacrylate) on the MOF surface, the poly(dimethylsiloxane) (PDMS) solvent can be effectively excluded from the pores while smaller guest molecules such as CO2, C2H4, and H2O can freely access the interior, as confirmed by low-pressure adsorption isotherms. Further application of a PDMS-containing polymer coating helps lower the viscosity of the PL due to increased particle dispersibility. This strategy has resulted in the successful construction of T3PLs with aperture sizes up to 3.1 nm.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Angew Chem Int Ed Engl Ano de publicação: 2024 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Angew Chem Int Ed Engl Ano de publicação: 2024 Tipo de documento: Article