However, the lack of a clear trend between P UV /P before and the effective diameter of gas molecules for UV‐irradiated PIM‐PI films suggests a unique role from the IFV of dianthracene linkages (i.e., IFV size of 3.6 to 4.7 Å), which will be considered next.
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Solution-Processable, Ladder-Branched Polyimides of Intrinsic Microporosity by [4+4] Cycloaddition for Membrane Gas Separation.
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