Inverse Gas Chromatography

Abstract : Some fundamental aspects of the physicochemical characterization of propellant prepolymers were explored for the purpose of developing and optimizing analytical procedures for molecular weight, degree of branching, and functionality distributions. Inverse gas and gel permeation chromatography, and Fourier-transform infrared spectroscopy, were employed with bulk and fractionated R-45M. The methodologies and techniques of analysis ultimately developed make use only of readily-available equipment, and are applicable to characterization and routine quality control of virtually any prepolymer system. They can therefore be implemented in any vendor or government laboratory.