Answers are grounded in this paper and cite their sources.
Infrared spectroscopy has been used to determine the relative amount, location, and orientation of residual water and acid molecules in poly(p‐phenylene benzobisthiazole) films. By analyzing the relative absorbance of reflected polarized infrared radiation from highly oriented films, the indices of refraction parallel and perpendicular to the chain axis were also obtained.
No takes yet. Share an insight, caveat, or question.
Chang et al. (1985) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: