Thermal Hazards Studies for the Azidation Process in the Preparation of Tetra Functional Glycidylazide Polymer (t-GAP) Using a Thermal Screening Unit (TSU)
Year: 2024
Type: article
Abstract: Glycidylazide polymer (GAP) tetraol or tetra functional GAP (t-GAP) is a potential energetic binder, capable of exhibiting superior mechanical properties and better curing behaviour for application in high energy propellants.t-GAP is conventionally prepared through azidation of tetra functional poly-epichlorohydrin (t-PECH).Azidation reactions using a metal azide are known to be sensitive to temperature.The present study was aimed at a systematic evaluation of the safe temperature limit for the preparation of t-GAP and to derive optimized reaction conditions using a thermal screening unit (TSU), through both dynamic and isothermal heating experiments.The thermal hazard studies suggested that the azidation reaction is fairly stable at temperatures above 100 °C as it did not exhibit any abrupt rise in reaction temperature or pressure.The process was validated using laboratory scale batches and completion of the reaction was verified using FTIR spectroscopy.
Authors: PK Adak, Mrinal Ghosh, A K Meena Meena, MuKesh Jain, Saibal Baneerjee
Language: English
Subfield: Mechanics of Materials
Field: Engineering
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4402981216