Synthesis and post-polymerization modification of polynorbornene bearing dibromomaleimide side groups. (10th February 2016)

• Record Type: Journal Article
• Authors: Li, Zi-Long; Sun, Linhao; Ma, Jimei; Zeng, Zhen; Jiang, Hong
• Is Part Of: Polymer. Volume 84(2016)
• Page Start: 336
• Page End: 342
• Publication Date: 2016-02-10
• Subjects: Polynorbornene -- Dibromomaleimide -- Post-polymerization modification; Polymers -- Periodicals; Polymerization -- Periodicals; Polymères -- Périodiques; Polymérisation -- Périodiques; 547.7
• DOI: 10.1016/j.polymer.2016.01.020
• Languages: English
• ISSNs: 0032-3861

Abstract

Abstract: We demonstrate that polynorbornene containing dibromomaleimide side group is a novel polymer platform for post-polymerization modification. PolymerP0 was obtained through ring-opening metathesis polymerization of monomer2 by using Grubbs third generation catalyst. Subsequently, P0 was chemically modified with 1-butanethiol and benzyl mercaptan to generateP1 andP2, respectively. In this way, the dibromomaleimide units on polymer side chain were quantitatively converted to dithiolmaleimide moieties. All the polymer samples exhibited good thermal stability and relatively high glass transition temperature. Meanwhile, the effects of substituent and solvent on fluorescent properties of the polymers were elucidated. Graphical abstract: Highlights: Polynorbornene containing DBM side groups was synthesized by means of ROMP. Thiols were used for quantitative conversion of DBM units to DTM moieties. Fluorescent properties of the polymers were governed by substituent and solvent.