One of the most important areas of current research is the study of the influence of the prehistory of samples of amorphous glassypolymersontheirphysicalandchemicalproperties.ThestudyofstructuralchangesbyhightemperatureIRspectroscopy compared with of quantum chemical calculations allows for an understanding of the mechanism and nature of such processes. The changes in the structure of the polymer chain depending on the type of solvent used in the formation of the films are demonstrated using the examples of several different classes of polymers. In turn, the impact of such changes in the structure on the physical and chemical properties of the polymer films is demonstrated. c � 2013 Society of Chemical Industry