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US 10,590,239 B2Granted
Polymer including Troger'S base and isatin moieties and having intrinsic microporosity
AssigneeDow Global Technologies LLC
InventorsRobert E. Hefner, Jr., Ian A. Tomlinson, Brian L. Cramm
Life of this patent
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Abstract
A polymer comprising a sub-unit represented by Formula I: wherein: L is independently selected from at least one arylene group, and a multi-ring moiety, L′ is independently selected from L or is not present, A and A′ are not present or are independently selected from an isatin moiety with the proviso that at least one of A and A′ is selected from an isatin moiety.
Claims9
A polymer comprising a sub-unit including a Troger's base moiety, wherein the sub-unit is represented by Formula I:
- wherein:
- L is independently selected from at least one arylene group, and a multi-ring moiety,
- L′ is independently selected from L or is not present,
- A and A′ are not present or are independently selected from an isatin moiety with the proviso that at least one of A and A′ is selected from an isatin moiety.
1 more element
Dependencies are inferred from the claim text.