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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.

Technical Report ·
DOI:https://doi.org/10.2172/918316· OSTI ID:918316

A sample of polymeric propellant binder was aged from 0 to 60 days at 95 C 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 from the spectra. It was found that multivariate curve resolution could efficiently separate highly overlapped spectra and yielded insights into the aging process.

Research Organization:
Sandia National Laboratories
Sponsoring Organization:
USDOE
DOE Contract Number:
AC04-94AL85000
OSTI ID:
918316
Report Number(s):
SAND2003-4151
Country of Publication:
United States
Language:
English