2013
DOI: 10.1002/pen.23653
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Characterization and gas permeation properties of UV-cured fluorine-containing telechelic polyimide membranes with a crosslinker

Abstract: The characterization and gas permeation properties of ultraviolet (UV)‐cured fluorine‐containing telechelic polyimide membranes and end‐capped with a crosslinker with acryloyl groups were investigated. Membrane formation property was improved by the addition of crosslinker by using UV irradiation. The densities of UV‐cured membranes were almost similar to each other, and high gel fraction was shown on the UV‐cured membranes. This result suggests that the crosslinker promotes crosslink reaction at the polymer c… Show more

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Cited by 3 publications
(2 citation statements)
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References 34 publications
(42 reference statements)
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“…From a molecular design perspective, the chemical crosslinking of polymer chains represents an accessible method for the adjustment of the macroscopic properties of membranes, including their gas transport properties. [9][10][11][12] For example, the inter-chain distance, internal free volume, and chain rigidity can be rationally controlled after cross-linking, all of which directly affect the permeability and selectivity of a membrane. Simultaneously, the densification of a membrane can be adjusted depending on the cross-linking density, while the embedding of a diverse range of potential cross-linkers opens up the possibility of further engineering the molecular structure of a membrane.…”
Section: Membranementioning
confidence: 99%
“…From a molecular design perspective, the chemical crosslinking of polymer chains represents an accessible method for the adjustment of the macroscopic properties of membranes, including their gas transport properties. [9][10][11][12] For example, the inter-chain distance, internal free volume, and chain rigidity can be rationally controlled after cross-linking, all of which directly affect the permeability and selectivity of a membrane. Simultaneously, the densification of a membrane can be adjusted depending on the cross-linking density, while the embedding of a diverse range of potential cross-linkers opens up the possibility of further engineering the molecular structure of a membrane.…”
Section: Membranementioning
confidence: 99%
“…An important method for enhancing the performance of polyimide membranes is the adjustment of the monomer's chemical structure, such as by introducing a kink, [6][7][8] screw ring, 9,10 cardo, 11,12 side groups (-CF 3 ), 13,14 and bulky, [15][16][17] or changing the configurations of different spatial connections. 18 In telechelic polyimides, [19][20][21][22][23][24] the groups that can interact with the gas are attached to the two ends of the polymer's main chain, so the polymer has an end-capping effect. The capped polyimide does not result in membrane densification and exhibits typical CO 2 -induced acceleration, resulting in excellent gas separation performance.…”
Section: Introductionmentioning
confidence: 99%