Embodiments of the present disclosure describe pseudo Tröger's base-derived dianhydrides. Embodiments of the present disclosure also describe polyimides based on pseudo Tröger's base-derived dianhydrides, including intrinsically microporous polyimides. Embodiments of the present disclosure further describe a method of separating chemical species in a fluid composition comprising contacting a polymeric membrane with a fluid composition including at least two chemical species, wherein the polymeric membrane includes one or more of an intrinsically microporous polyimide, and capturing at least one of the chemical species from the fluid composition.
本公开的实施例描述了基于伪特罗格氏碱衍生二酐的聚合物。本公开的实施例还描述了基于伪特罗格氏碱衍生二酐的聚
酰亚胺,包括固有微孔聚
酰亚胺。本公开的实施例进一步描述了一种在包括至少两种
化学物种的流体组分中分离
化学物种的方法,其中该聚合物膜与包括至少两种
化学物种的流体组分接触,其中该聚合物膜包括一种或多种固有微孔聚
酰亚胺,并从流体组分中捕获至少一种
化学物种。