caa a22 4500 388021179 CHVBK 20180307124925.0 cr unu---uuuuu 161130e199801 xx s 000 0 eng 10.1557/JMR.1998.0011 doi S0884291400042485 pii (NATIONALLICENCE)cambridge-10.1557/JMR.1998.0011 Polystyrene foams with dispersed catalyst for a design of recyclable plastics [Elektronische Daten] The present authors have already reported that barium oxide is the most effective catalyst for the conversion of waste polystyrene into styrene including both monomer and dimer. Around 85 wt.% of waste polystyrene was converted into styrene when it was degraded at 623 K in the presence of barium oxide as catalyst. In this paper, the preparation and the thermal degradation of polystyrene films with dispersed catalyst are described for a design of recyclable plastics for better environment. More than 85 wt.% of the films was degraded into styrene at 623 K without addition of other catalytic compounds. Techniques for foaming the films using either nitrogen or carbon dioxide are discussed. It was found that the polystyrene foams with dispersed catalyst are well converted into styrene when they are simply degraded at 673 K. Copyright © Materials Research Society 1998 Hirose Tamaki Department of Materials Science, Faculty of Engineering, Shizuoka University, Jyohoku, Hamamatsu, Shizuoka 432, Japan Takai Yoshifumi Department of Materials Science, Faculty of Engineering, Shizuoka University, Jyohoku, Hamamatsu, Shizuoka 432, Japan Azuma Naoto Department of Materials Science, Faculty of Engineering, Shizuoka University, Jyohoku, Hamamatsu, Shizuoka 432, Japan Morioka Yoshio Department of Materials Science, Faculty of Engineering, Shizuoka University, Jyohoku, Hamamatsu, Shizuoka 432, Japan Ueno Akifumi Department of Materials Science, Faculty of Engineering, Shizuoka University, Jyohoku, Hamamatsu, Shizuoka 432, Japan Okada Mitsunori Yokohama Institute, Furukawa Electric Co., Okano, Nishi-ku, Yokohama, Kanagawa 220, Japan Journal of Materials Research Cambridge University Press 13/1(1998-01), 77-80 0884-2914 13:1<77 1998 13 JMR https://doi.org/10.1557/JMR.1998.0011 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1557/JMR.1998.0011 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Hirose Tamaki Department of Materials Science, Faculty of Engineering, Shizuoka University, Jyohoku, Hamamatsu, Shizuoka 432, Japan NATIONALLICENCE 700 1- Takai Yoshifumi Department of Materials Science, Faculty of Engineering, Shizuoka University, Jyohoku, Hamamatsu, Shizuoka 432, Japan NATIONALLICENCE 700 1- Azuma Naoto Department of Materials Science, Faculty of Engineering, Shizuoka University, Jyohoku, Hamamatsu, Shizuoka 432, Japan NATIONALLICENCE 700 1- Morioka Yoshio Department of Materials Science, Faculty of Engineering, Shizuoka University, Jyohoku, Hamamatsu, Shizuoka 432, Japan NATIONALLICENCE 700 1- Ueno Akifumi Department of Materials Science, Faculty of Engineering, Shizuoka University, Jyohoku, Hamamatsu, Shizuoka 432, Japan NATIONALLICENCE 700 1- Okada Mitsunori Yokohama Institute, Furukawa Electric Co., Okano, Nishi-ku, Yokohama, Kanagawa 220, Japan NATIONALLICENCE 773 0- Journal of Materials Research Cambridge University Press 13/1(1998-01), 77-80 0884-2914 13:1<77 1998 13 JMR CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge