Synthesis and characterization of poly(1,2,3-triazole)s with inherent high sulfur content for optical applications

Research output: Contribution to journalResearch articleContributedpeer-review

Contributors

  • Kajari Mazumder - , Leibniz Institute of Polymer Research Dresden, Indian Institute of Technology Kharagpur (Author)
  • Hartmut Komber - , Leibniz Institute of Polymer Research Dresden (Author)
  • Eva Bittrich - , Leibniz Institute of Polymer Research Dresden (Author)
  • Brigitte Voit - , Chair of Organic Chemistry of Polymers, Leibniz Institute of Polymer Research Dresden, TUD Dresden University of Technology (Author)
  • Susanta Banerjee - , Indian Institute of Technology Kharagpur (Author)

Abstract

The synthesis of solution-processable sulfur-containing polytriazoles for optoelectronic applications is a relatively less explored domain in polymer research. The synthesis of novel bifunctional (DA) and trifunctional (TA) azido-monomers with inherent high sulfur content and of organo-soluble high refractive index poly(1,2,3-triazole)s using the azido-monomers via Cu(I) assisted click polymerization reactions are reported in this work. The azido-monomers were synthesized by the conversion of previously reported amine-functionalized compounds to azides using azidotrimethylsilane in a polar aprotic solvent. Dialkyne monomers were also synthesized and reacted with the azides to prepare a series of five linear and two hyperbranched poly(1,2,3-triazole)s. Fourier transform infrared spectroscopy, nuclear magnetic resonance spectroscopy, differential scanning calorimetry and thermogravimetric analysis were used to characterize the synthesized polymers. It was also demonstrated that the use of the trifunctional azide in optimized conditions resulted in increased solubility of an otherwise insoluble linear poly(1,2,3-triazole). The optical characterization of the polymers was carried out on thin polymer films with thickness in the nanometer range, which were successfully prepared by spin-coating on silicon wafers. It was found that the increase in the sulfur and aromatic content in the polymer backbone successfully increased the refractive index of the polymers up to 1.743 at 589 nm.

Details

Original languageEnglish
Pages (from-to)1778-1791
Number of pages14
JournalJournal of Polymer Science
Volume61
Issue number16
Early online dateFeb 2023
Publication statusPublished - 15 Aug 2023
Peer-reviewedYes

External IDs

Scopus 85147509411
ORCID /0000-0002-4531-691X/work/148608049
Mendeley aef8c71f-6912-33ea-9b4d-69be2b243729

Keywords

Keywords

  • 2, 3-triazole)s, Birefringence, Click polymerization, High refractive index, Optical properties of poly(1, Sulfur containing poly(1, birefringence, click polymerization, high refractive index, optical properties of poly(1,2,3-triazole)s, sulfur containing poly(1,2,3-triazole)s