Intrinsically Microporous Polyimides Derived from 2,2'-Dibromo-4,4',5,5'-bipohenyltetracarboxylic Dianhydride for Gas Separation Membranes.

Yongle Li, Yao Lu, Chun Tian, Zhen Wang, Jingling Yan

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Article in Polymers, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

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1 citing paper in PubMed.

Tröger's Base Polyimide Membranes with Enhanced Mechanical Robustness for Gas Separation.Polymers · 2025
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5 authors.

Yongle LiNingbo Institute of Material Technology & Engineering, Chinese Academy of Sciences, Ningbo 315201, China.

Yao LuSchool of Fine Arts, Zhengzhou University, Zhengzhou 450001, China.

Chun TianNingbo Institute of Material Technology & Engineering, Chinese Academy of Sciences, Ningbo 315201, China.

Zhen WangNingbo Institute of Material Technology & Engineering, Chinese Academy of Sciences, Ningbo 315201, China.

Jingling YanNingbo Institute of Material Technology & Engineering, Chinese Academy of Sciences, Ningbo 315201, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This work aims to expand the structure-property relationships of bromo-containing polyimides and the influence of bromine atoms on the gas separation properties of such materials. A series of intrinsically microporous polyimides were synthesized from 2,2'-dibromo-4,4',5,5'-bipohenyltetracarboxylic dianhydride (Br-BPDA) and five bulky diamines, (7,7'-(mesitylmethylene)bis(8-methyldibenzo[b,e][1,4]dioxin-2-amine) (MMBMA), 7,7'-(Mesitylmethylene)bis(1,8-dimethyldibenzo[b,e][1,4] dioxin-2-amine) (MMBDA), 4,10-dimethyl-6H,12H-5,11-methanodibenzo[b,f][1,5]diazocine-2,8-diamine (TBDA1), 4,10-dimethyl-6H,12H-5,11-methanodibenzo[b,f][1,5]diazocine-3,9-diamine (TBDA2), and (9R,10R)-9,10-dihydro-9,10-[1,2]benzenoanthracene-2,6-diamine (DAT). The Br-BPDA-derived polyimides exhibited excellent solubility, high thermal stability, and good mechanical properties, with their tensile strength and modulus being 59.2-109.3 MPa and 1.8-2.2 GPa, respectively. The fractional free volumes (

Indexed as

2,2′-dibromo-4,4′,5,5′-bipohenyltetracarboxylic dianhydridebromo groupgas separation performanceinterchain distancesPIM-PIs

Identifiers

PMID38732667

DOI10.3390/polym16091198

PMCPMC11085140

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