caa a22 4500 378903624 CHVBK 20180305123524.0 cr unu---uuuuu 161128e20041201xx s 000 0 eng 10.1515/epoly.2004.4.1.374 doi (NATIONALLICENCE)gruyter-10.1515/epoly.2004.4.1.374 New materials from degraded styrene-acrylonitrile and ethylene-propylene-diene copolymers [Elektronische Daten] [Jasminka Vugrinec, Ljerka Kratofil, Zlata Hrnjak-Murgić, Jasenka Jelenčić] Polymer blends of styrene-acrylonitrile (SAN) and ethylene-propylenediene copolymer (EPDM) were prepared by casting films from chloroform solution. Their compositions were 95/5, 90/10 and 80/20, respectively. To simulate ageing, SAN/EPDM blends were degraded at 140°C for several different time intervals and the degree of degradation was followed by IR spectroscopy and by determination of molar masses. To recover thermally degraded SAN/EPDM blends, in situ polymerization by addition of styrene monomer was applied. Characterization of SAN and EPDM, graft copolymer and gel was carried out in order to reveal the polymerization process. Extractions of the polymers were made using solvents in a Soxhlet equipment: SAN in a mixture of acetone/ methanol, EPDM in hexane, graft copolymer in tetrahydrofuran, while the remaining part was considered as gel. Identification of extracted polymers has been conducted by IR spectroscopy. The presence of graft copolymer in the polymerization mixture proved the grafting reaction of polymer radicals. The highest content of graft copolymer was obtained for SAN/EPDM polymer blends that were exposed to thermal treatment for the longest time interval of 90 h. © 2013 by Walter de Gruyter GmbH & Co. Vugrinec Jasminka Department of Polymer Engineering, Faculty of Chemical Engineering and Technology, University of Zagreb, P.O. Box 177, HR-10000, Zagreb, Croatia; http://www.fkit.hr; Fax +385 1 4597142 aut Kratofil Ljerka Department of Polymer Engineering, Faculty of Chemical Engineering and Technology, University of Zagreb, P.O. Box 177, HR-10000, Zagreb, Croatia; http://www.fkit.hr; Fax +385 1 4597142 aut Hrnjak-Murgić Zlata Jasenka Jelenčić Department of Polymer Engineering, Faculty of Chemical Engineering and Technology, University of Zagreb, P.O. Box 177, HR-10000, Zagreb, Croatia; http://www.fkit.hr; Fax +385 1 4597142 aut Jelenčić Jasenka Department of Polymer Engineering, Faculty of Chemical Engineering and Technology, University of Zagreb, P.O. Box 177, HR-10000, Zagreb, Croatia; http://www.fkit.hr; Fax +385 1 4597142 aut e-Polymers De Gruyter 4/1(2004-12-01), 374-383 2197-4586 4:1<374 2004 4 epoly https://doi.org/10.1515/epoly.2004.4.1.374 text/html Onlinezugriff via DOI 1 research article jats NATIONALLICENCE 856 40 https://doi.org/10.1515/epoly.2004.4.1.374 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Vugrinec Jasminka Department of Polymer Engineering, Faculty of Chemical Engineering and Technology, University of Zagreb, P.O. Box 177, HR-10000, Zagreb, Croatia; http://www.fkit.hr; Fax +385 1 4597142 aut NATIONALLICENCE 700 1- Kratofil Ljerka Department of Polymer Engineering, Faculty of Chemical Engineering and Technology, University of Zagreb, P.O. Box 177, HR-10000, Zagreb, Croatia; http://www.fkit.hr; Fax +385 1 4597142 aut NATIONALLICENCE 700 1- Hrnjak-Murgić Zlata Jasenka Jelenčić Department of Polymer Engineering, Faculty of Chemical Engineering and Technology, University of Zagreb, P.O. Box 177, HR-10000, Zagreb, Croatia; http://www.fkit.hr; Fax +385 1 4597142 aut NATIONALLICENCE 700 1- Jelenčić Jasenka Department of Polymer Engineering, Faculty of Chemical Engineering and Technology, University of Zagreb, P.O. Box 177, HR-10000, Zagreb, Croatia; http://www.fkit.hr; Fax +385 1 4597142 aut NATIONALLICENCE 773 0- e-Polymers De Gruyter 4/1(2004-12-01), 374-383 2197-4586 4:1<374 2004 4 epoly CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-gruyter