Synthetic Control of Pore Properties in Conjugated Microporous Polymers Based on Carbazole Building Blocks. Issue 5 (4th December 2014)

• Record Type: Journal Article
• Authors: Wang, Xiaoyan; Zhao, Yang; Wei, Lingling; Zhang, Chong; Yang, Xiao; Yu, Miao; Jiang, Jia‐Xing
• Is Part Of: Macromolecular chemistry and physics. Volume 216:Issue 5(2015:Mar.)
• Page Start: 504
• Page End: 510
• Publication Date: 2014-12-04
• Subjects: Polymers -- Periodicals; Polymerization -- Periodicals; Synthetic products -- Periodicals; Macromolecules -- Periodicals; 547.7
• DOI: 10.1002/macp.201400508
• Languages: English
• ISSNs: 1022-1352

Abstract

<abstract abstract-type="main" xml:lang="en"> <title> <x xml:space="preserve">Abstract</x> </title> <p>A series of conjugated microporous polymers (CMPs) from 1, 3, 6, 8‐tetrabromocarbazole and its alkylated derivative is synthesized via Suzuki cross‐coupling polycondensation. These polymer networks are stable in common organic solvents and thermally stable. The pore properties (pore size and surface area) of this kind of CMPs can be tuned by using either a linker with different geometries or carbazole substituted with alkyl groups. All of the polymers show high isosteric heats of CO₂ adsorption (27.1–30.8 kJ mol⁻¹) because the incorporation of nitrogen atoms into the skeleton of the CMP enhances the interaction between the pore wall and CO₂ molecules. The polymer PPTBC shows a high Brunauer–Emmett–Teller specific surface area up to 917 m² g⁻¹ with a high CO₂ uptake ability of 2.93 mmol g⁻¹ at 1.13 bar/273 K. These data show that these materials are potential candidates for applications in post‐combustion CO₂ capture and sequestration technology. <boxed-text content-type="graphic" position="anchor" orientation="portrait"><graphic position="anchor" mimetype="image" xlink:href="ark:/27927/pgj433853x" orientation="portrait" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink" /></boxed-text></p> </abstract>