caa a22 4500 46318887X CHVBK 20180406164902.0 cr unu---uuuuu 170326e20070501xx s 000 0 eng 10.1007/s10973-006-8041-0 doi (NATIONALLICENCE)springer-10.1007/s10973-006-8041-0 Thermalproperties of polyurethanes synthesized using waste polyurethane foam glycolysates [Elektronische Daten] [J. Datta, M. Rohn] In this work thermal transitions and thermal stability of polyurethane intermediates and polyurethanes were investigated. The intermediates were obtained by glycolysis of waste polyurethane (PUR) in the reaction with hexamethylene glycol (HDO). The excess of HDO was not separated from the product after the glycolysis process was finished. The effects of different mass ratio of HDO to PUR foam on selected physicochemical properties (hydroxyl number, Brookfield viscosity and density) were also determined. The polyurethanes were synthesized from the obtained intermediates by the prepolymer method using diisocyanate (MDI) and glycolysis product of molecular mass in range 700/1000 g mol-1. Hexamethylene glycol, 1,4-butanediol and ethylene glycol were used as chain extender agents. Influence of NCO groups concentration in prepolymer on glass transition temperature (T g) and storage and loss modulus (E', E'') of polyurethanes were investigated by the DMTA method. Thermal decomposition of obtained glycolysates and polyurethanes was followed by thermogravimetry coupled with Fourier transform infrared spectroscopy. Main products of thermal decomposition were identified. Springer-Verlag, 2007 DMTA nationallicence elastomer nationallicence glycolysis nationallicence polyurethane nationallicence TG nationallicence TG-FTIR nationallicence thermal analysis nationallicence thermal stability nationallicence waste foam nationallicence Datta J. Chemical Faculty, Department of Polymer Technology, Gdańsk University of Technology, 80-952, Gdańsk, Poland aut Rohn M. Chemical Faculty, Department of Polymer Technology, Gdańsk University of Technology, 80-952, Gdańsk, Poland aut Journal of Thermal Analysis and Calorimetry Kluwer Academic Publishers 88/2(2007-05-01), 437-440 1388-6150 88:2<437 2007 88 10973 https://doi.org/10.1007/s10973-006-8041-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10973-006-8041-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Datta J. Chemical Faculty, Department of Polymer Technology, Gdańsk University of Technology, 80-952, Gdańsk, Poland aut NATIONALLICENCE 700 1- Rohn M. Chemical Faculty, Department of Polymer Technology, Gdańsk University of Technology, 80-952, Gdańsk, Poland aut NATIONALLICENCE 773 0- Journal of Thermal Analysis and Calorimetry Kluwer Academic Publishers 88/2(2007-05-01), 437-440 1388-6150 88:2<437 2007 88 10973 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer