Photophysical properties of soluble light-harvesting polyhydrofurans from post-polymerization functionalization of polyketones

• Published in: European polymer journal 2021-03, Vol.147, p.110302, Article 110302
• Main Authors: Potter, Maggie M., Guironnet, Damien
• Format: Article
• Language: English
• Subjects: Chemical synthesis; Chromophores; Conjugated polymer; Electronic devices; Energy transfer; Mechanical properties; Molecular weight; Polyketone; Polyketones; Polymerization; Polymers; Post polymerization functionalization; Reaction time; Studies
• ISSN: 0014-3057; 1873-1945
• DOI: 10.1016/j.eurpolymj.2021.110302

[Display omitted] •Conjugated polymer synthesized by post-polymerization functionalization.•Adjustable molecular weight of the polymer through reaction time.•Emission of polymer end-group versus backbone. Soluble polyhydrofurans with chromophoric end-groups have been synthesized via post-polymerization modifications of polyketones. The absorption intensity in solution and molecular weight were controlled by manipulation of reaction time after addition of HBr gas, and the chromophoric end-groups exhibited blue emission with a maximum quantum yield of ca. 14%. Precise addition of a dopant decreased chromophore emission quantum yield, presumably by energy transfer from the polymer end-groups to the polymer backbone. Given their solubility, tunability with regard to photophysical properties and molecular weight, the resulting polymers may have applicability to organic-based electronic devices and studies of the solution-processability thereof.