4.8 Article

Pushing CO2-philic membrane performance to the limit by designing semi-interpenetrating networks (SIPN) for sustainable CO2 separations

Journal

ENERGY & ENVIRONMENTAL SCIENCE
Volume 10, Issue 6, Pages 1339-1344

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c6ee03566c

Keywords

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Funding

  1. National Natural Science Foundation of China [21676063, U1462103]
  2. Harbin Science and Technology Innovation Talent Funds [2014RFXXJ028]
  3. HIT Environment and Ecology Innovation Special Funds [HSCJ201619]

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Semi-interpenetrating network (SIPN) membranes with unprece-dentedly high CO2 permeability were designed and synthesized simply through one-step, UV-induced radical polymerization. The in situ embedment of linear polyethylene glycol as a 'CO2 transport promoter'' in membranes can dramatically enhance both CO2 solubility and diffusivity to push SIPN membrane performance beyond Robeson's upper bound line (2008). This extremely facile performance-manipulating strategy establishes our CO2-philic SIPN membranes as an exciting platform for sustainable CO2 separations.

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