Novel thiophene-bearing conjugated microporous polymer honeycomb-like porous spheres with ultrahigh iodine uptake. Issue 63 (15th July 2016)

• Record Type: Journal Article
• Authors: Ren, Feng; Zhu, Zhaoqi; Qian, Xin; Liang, Weidong; Mu, Peng; Sun, Hanxue; Liu, Jiehua; Li, An
• Is Part Of: Chemical communications. Volume 52:Issue 63(2016)
• Page Start: 9797
• Page End: 9800
• Publication Date: 2016-07-15
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/c6cc05188j
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : We demonstrated novel honeycomb-like porous spherical conjugated microporous polymers bearing thiophene units with ultrahigh iodine uptake. Abstract : Two conjugated microporous polymers containing thiophene-moieties (SCMPs) were obtained by the polymerization of 3, 3′, 5, 5′-tetrabromo-2, 2′-bithiophene and ethynylbenzene monomers through the palladium-catalyzed Sonogashira–Hagihara crosscoupling reaction. The resulting SCMPs show high thermal stability with a decomposition temperature above 300 °C. Scanning electron microscopy images show that the resulting SCMPs formed as an aggregation composed of micrometer-sized SCMP spheres, in which honeycomb-like porous spheres with penetrated pores on the surface were observed. Taking advantage of such a unique honeycomb-like porous morphology as well as π-conjugated structures, the SCMPs show ultrahigh absorption performance for iodine vapour with an uptake of up to 345 wt% obtained, which is the highest value reported to date for CMPs, thus making the resulting SCMPs ideal absorbent materials for reversible iodine capture to address environmental issues.