High pressure spectroscopy of Kapton® polyimide film revealed a pressure-induced red shift of the absorption band edge in the visible.This shift was interpreted through application of Mulliken charge transfer complex theory and suggests that the low energy transition in polyimides is the result of an intermolecular charge transfer complex.
No takes yet. Share an insight, caveat, or question.
Erskine et al. (1988) studied this question.
Synapse has enriched 5 related papers. Consider them for comparative context: