Synthesis and characterization of glycidyl azide polymer with enhanced azide content

Murali Yallapu, K. Mohana Raju, B. Sreedhar

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

The present study reports the preparation of glycidyl azide polymer with enhanced azide content. This process involves the cationic ring-opening polymerization of epichlorohydrin (ECH) using borontrifluoride etherate (BF 3 -etherate) and 2,2-bis(bromomethyl)1,3-propane diol (BMPD) as initiator and co-initiators, respectively, followed by subsequent azidation of the product. For both the products, poly(epichlorohydrin)s (PECHs) and glycidyl azide polymers (GAPs) the substituted 1,3-propane diol units were characterized by spectroscopic as well as thermal analysis. Vapor pressure osmometer studies indicated that as the diol concentration increased in the polymerization the formed PECH molecular weight decreased. The spectral analysis indicates the presence of corresponding diol units in their polymeric chains. The differential scanning calorimetry and elemental analysis of the GAPs developed in this investigation indicated the presence of higher azide content in the polymer.

Original languageEnglish (US)
Pages (from-to)441-455
Number of pages15
JournalInternational Journal of Polymeric Materials and Polymeric Biomaterials
Volume55
Issue number6
DOIs
StatePublished - Jun 1 2006
Externally publishedYes

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Azides
Epichlorohydrin
Propane
Polymers
Cationic polymerization
Ring opening polymerization
Vapor pressure
Spectrum analysis
Thermoanalysis
Differential scanning calorimetry
Molecular weight
Polymerization
Chemical analysis
glycidyl azide polymer

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry
  • Chemical Engineering(all)
  • Polymers and Plastics

Cite this

Synthesis and characterization of glycidyl azide polymer with enhanced azide content. / Yallapu, Murali; Raju, K. Mohana; Sreedhar, B.

In: International Journal of Polymeric Materials and Polymeric Biomaterials, Vol. 55, No. 6, 01.06.2006, p. 441-455.

Research output: Contribution to journalArticle

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