Nb. Melnikova et al., INVESTIGATION OF TOPOCHEMICAL PROCESSES OF SYNTHESIS AND DEGRADATION OF POLYIMIDES BY MEANS OF UV ATIR SPECTROSCOPY, Russian journal of applied chemistry, 66(9), 1993, pp. 1593-1597
Feasibility has been demonstrated for the use of UV reflection spectro
scopy on the basis of an Uhlbricht sphere technique to study the therm
al cyclodehydration of a polyamido acid and the modification of polyim
ides in various media.