Conjugated microporous polymers using a copper-catalyzed [4 + 2] cyclobenzannulation reaction: promising materials for iodine and dye adsorption. Issue 15 (25th March 2021)

• Record Type: Journal Article
• Authors: Baig, Noorullah; Shetty, Suchetha; Al-Mousawi, Saleh; Alameddine, Bassam
• Is Part Of: Polymer chemistry. Volume 12:Issue 15(2021)
• Page Start: 2282
• Page End: 2292
• Publication Date: 2021-03-25
• Subjects: Polymers -- Periodicals; Macromolecules -- Periodicals; Polymerization -- Periodicals; 547.705
• DOI: 10.1039/d1py00193k
• Languages: English
• ISSNs: 1759-9954

Abstract

Abstract : A new design strategy is disclosed to synthesize conjugated microporous polymers using a Cu-catalyzed [4 + 2] cyclobenzannulation reaction. The polymers reveal BET surface areas up to 794 m 2 g −1 and promising uptake of iodine and methylene blue. Abstract : A design strategy is disclosed to synthesize conjugated microporous polymers (CMPs) using a versatile copper-catalyzed [4 + 2] cyclobenzannulation reaction, which employs a diphenylethynyl terephthalaldehyde derivative 3 with a series of triptycene-based diethynyl aryl building blocks 2a–e . Investigation of the intrinsic microporosity properties of CBP1–5 using nitrogen adsorption measurements reveals Brunauer–Emmett–Teller (BET) surface areas up to 794 m 2 g −1 and average pore volumes reaching 0.63 cm 3 g −1 . Inspection of the adsorption properties of the graphitic-like polymers CBP1–5 divulges their high iodine uptake with a maximum of 166 wt%. Moreover, the target polymers CBP1–5 prove their efficiency as selective dye adsorbents by removing up to 100% methylene blue over methyl orange from aqueous solution.