Preparation and characterization of 1,2,3-triazole-cured polymers from endcapped azides and alkynes


Katritzky A. R. , Meher N. K. , Hanci S., Gyanda R., Tala S. R. , Mathai S., ...More

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, vol.46, no.1, pp.238-256, 2008 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 46 Issue: 1
  • Publication Date: 2008
  • Doi Number: 10.1002/pola.22376
  • Title of Journal : JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
  • Page Numbers: pp.238-256

Abstract

Fourteen commercial polyols have been characterized by GPC, NMR spectroscopy, and elemental analysis. From these, eight corresponding tosylates, six nitrate esters, seven mesylates, 13 alkynes, and 14 azides have been prepared and all these derivatives have been fully characterized. Five alkyne monomers and eight azide monomers were also prepared. Twelve alkynes and 13 azides (functionality 2-4) were combined in 1,3-dipolar cycloaddition reactions under neat conditions to prepare triazole-cured polymers, avoiding any heavy metal catalyst. Characterization by NMR spectroscopy, elemental analysis, and gel permeation chromatography indicated triazole polymers 14, 22, 23, 28, and 30 with degrees of polymerization of 17-28 to be the best candidates for future work. (c) 2007 Wiley Periodicals, Inc.