Superbase catalyzed regio-selective polyhydroalkoxylation of alkynes: a facile route towards functional poly(vinyl ether)s. Issue 17 (12th April 2017)

• Record Type: Journal Article
• Authors: Wang, Jia; Li, Baixue; Xin, Dehua; Hu, Rongrong; Zhao, Zujin; Qin, Anjun; Tang, Ben Zhong
• Is Part Of: Polymer chemistry. Volume 8:Issue 17(2017)
• Page Start: 2713
• Page End: 2722
• Publication Date: 2017-04-12
• Subjects: Polymers -- Periodicals; Macromolecules -- Periodicals; Polymerization -- Periodicals; 547.705
• DOI: 10.1039/c7py00363c
• Languages: English
• ISSNs: 1759-9954

Abstract

Abstract : A superbase of t -BuP4 catalysed polyhydroxylation of aromatic diynes was established, and regio-regular poly(vinyl ether)s with versatile properties were produced. Abstract : The polyhydro X ations, such as polyhydro thiol ation and polyhydro amin ation, of alkynes have been well-established. However, the polyhydro alkoxyl ation is rarely reported. In this paper, the polyhydroalkoxylation of aromatic diynes was successfully developed in the presence of a superbase, phosphazene base ( t -BuP4 ). A series of soluble and regio-regular anti-Markovnikov additive poly(vinyl ether)s with high molecular weights ( M w up to 40 600) were obtained in high yields (up to 99%). All the polymers are thermally and morphologically stable. The tetraphenylethene (TPE)-containing P1a2a, P1a2b and P1a2c showed unique aggregation-enhanced emission (AEE) characteristics, and their aggregates could be used for explosive detection with a superamplification quenching effect. The poly(vinyl ether)s are degradable under acidic conditions. Thus, this work not only established a new polymerization but also generated a series of functional polymeric materials that are potentially applicable in optoelectronic and biomedical fields.