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Exceeding the limits of polyimide membranes for less-energy intensive CO2 separation and capture by employing the PIM concept and blending technique
Project status: Ended
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Contracting authority: Executive Agency for Higher Education, Research, Development and Innovation (UEFISCDI)
Project: PN-III-P2-2.1-PED-2021-1666
Project Manager: Dr. Habil. Mariana-Dana DAMACEANU
Contractor: “Petru Poni” Institute of Macromolecular Chemistry, Iasi Romania

Contract number: 718PED/2022  

Acronym: memPIM-PIs

Project Description

CO2 capture and storage (CCS) was claimed as an essential R&D priority to accomplish the Europe 2050 climate objectives by using cost-effective strategies. The CO2 capture procesess is still too expensive due to low CO2 concentrations in the flue gas, making the amount of energy needed for capture to be process costly. Addressing the CCS Directive of the EU policy, memPIM-PIs aims at developing polymer membranes for sustainable CO2 capture. To this goal, the synergistic effect between the PIM concept applied to polyimides and the facile blending method will be exploited as strategy to engineer novel CO2 capture membranes. Thus, the chain flexibility and segmental mobility will be controlled by incorporating bulky groups and flexible linkages. Blending a fluorinated polyimide with a polyimide containing a bulky group will guide to a library of membranes resistant to ageing and plasticization. Our key strategy relies on the incorporation into polyimides of tertiary amine atoms as receptors for CO2 through 1,3,5-triazine or triphenylamine that will induce adsorbate-adsorbent interactions favorable for CO2 capture. The obtained membranes will be physico-chemically investigated and subjected to gas permeation tests. Their performance will be evaluated by plotting the CO2 permeability and selectivity in Robeson diagrams. 

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