caa a22 4500 463191447 CHVBK 20180406164910.0 cr unu---uuuuu 170326e20070901xx s 000 0 eng 10.1007/s10973-006-7566-6 doi (NATIONALLICENCE)springer-10.1007/s10973-006-7566-6 Thermoanalytical behaviour of some coating free films [Elektronische Daten] [G. Regdon Jr., A. Kósa, I. Erős, K. Pintye-Hódi] Differential scanning calorimetry (DSC) was used in the investigation of the behaviour of coating free films. The films were produced from two film-forming polymers which are chemically different but equally used for producing controlled-release dosage forms: Eudragit NE 30 D (synthetically produced polymethacrylate copolymer) and LustreClear product (mixture containing natural and semi-synthetic components: microcrystalline cellulose, hydroxy-ethyl cellulose, carrageenan and polyethylene glycol). During their comparative analysis the characteristic parameters of the DSC curves obtained with dynamic measurement method were used and their changes as a function of storage conditions and storage time were observed. It was found that the thermoanalytical behaviour of the examined methacrylate-based Eudragit NE and cellulose-based LustreClear films was different. The specific enthalpy change of Eudragit NE fresh films was very little, but it increased considerably during storage. The specific enthalpy change of LustreClear films was much greater but its value shows only a slight further increase during storage. The results obtained help to choose the proper temperature for coating and drying. Springer Science+Business Media LLC, 2007 carrageenan nationallicence DSC nationallicence Eudragit NE 30 D nationallicence free films nationallicence LustreClear nationallicence methacrylate copolymer nationallicence microcrystalline cellulose nationallicence storage conditions nationallicence Regdon Jr. G. Department of Pharmaceutical Technology, University of Szeged, Eötvös St. 6., 6720, Szeged, Hungary aut Kósa A. Department of Pharmaceutical Technology, University of Szeged, Eötvös St. 6., 6720, Szeged, Hungary aut Erős I. Department of Pharmaceutical Technology, University of Szeged, Eötvös St. 6., 6720, Szeged, Hungary aut Pintye-Hódi K. Department of Pharmaceutical Technology, University of Szeged, Eötvös St. 6., 6720, Szeged, Hungary aut Journal of Thermal Analysis and Calorimetry Springer US; http://www.springer-ny.com 89/3(2007-09-01), 793-797 1388-6150 89:3<793 2007 89 10973 https://doi.org/10.1007/s10973-006-7566-6 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10973-006-7566-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Regdon Jr G. Department of Pharmaceutical Technology, University of Szeged, Eötvös St. 6., 6720, Szeged, Hungary aut NATIONALLICENCE 700 1- Kósa A. Department of Pharmaceutical Technology, University of Szeged, Eötvös St. 6., 6720, Szeged, Hungary aut NATIONALLICENCE 700 1- Erős I. Department of Pharmaceutical Technology, University of Szeged, Eötvös St. 6., 6720, Szeged, Hungary aut NATIONALLICENCE 700 1- Pintye-Hódi K. Department of Pharmaceutical Technology, University of Szeged, Eötvös St. 6., 6720, Szeged, Hungary aut NATIONALLICENCE 773 0- Journal of Thermal Analysis and Calorimetry Springer US; http://www.springer-ny.com 89/3(2007-09-01), 793-797 1388-6150 89:3<793 2007 89 10973 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer