2014, №1

pp. 48-54

Effects of electron-donor compounds on electron states of spiroantrooxazine incorporated into thermoplastic polymers by supercritical fluid impregnation

2014, №1

сс. 48-54

Quote

A.V. Cherkasova, N.N. Glagolev, A.S. Kopylov, P.S. Timashev, A.B. Solovieva, V.N. Bagratashvili.

Key words: photochromism, spirocompounds, SCF impregnation, luminescence, electron-donor compounds

Aromatic electron-donor compounds (EDC) (such as toluene and dibutyl phthalate) are found to affect the content of photochromic spiroantrooxazine (SAO) and to control the ratio of its colored forms (B and Bx) introduced into thermoplastic polymeric matrixes (e.g. polyvinylchloride and F-42 fluoroplast) using the supercritical fluid impregnation (SCFI). The presence of EDC in impregnated polymers induces the reciprocal transformations of the SAO colored form B and Bx and increases the rate their «dark» bleaching.