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Use of step scan FT-IR and multivariate curve resolution to understand aging of propellant binder as a function of depth into the polymer material
A sample of polymeric propellant binder was aged from 0 to 60 days at 95 oC and analyzed using FT-IR step scan photoacoustic spectroscopy. This technique has the ability of to obtain spectra of the polymer as a function of depth into the polymer material. Multivariate curve resolution was applied to the spectra data obtained to extract the contributions of the aged and un-aged spectral components form the spectra. It was found that multivariate curve resolution could efficiently separate highlydoi:10.2172/918316 fatcat:ymwypbwu5zc4lhbh5usjxlhaqu