caa a22 4500 445384484 CHVBK 20180317143027.0 cr unu---uuuuu 170323e20110301xx s 000 0 eng 10.1007/s10924-010-0276-y doi (NATIONALLICENCE)springer-10.1007/s10924-010-0276-y Chemical Recycling of PET Waste with Multifunctional Pentaerythrytol in the Melt State [Elektronische Daten] [L. Mendes, M. Dias, T. Rodrigues] Chemical recycling of poly(ethylene terephthalate) PET waste in the melt state through alcoholysis with multifunctional alcohol—pentaerythrytol (PENTE)—was performed in a internal mixer Haake Rheomix 600, at 250°C, 60rpm, for 10min, in presence of zinc acetate. The following PET:PENTE molar ratios 1:0; 1:0.16; 1:0.48 and 1:3.4 were studied. The chemical structure of the end-products was characterized by FT-IR. Thermal properties and X-ray diffractograms were also assessed. The esterification and alcoholysis reactions took place and were dependent on the molar ratio. The first one is dominant in compositions rich in PET leading to the formation of star-branching copolymer. The second one brings about the PET oligomerization and an oligoester named herein bis(tri-hydroxylneopentyl) terephthalate (BTHNPT) was obtained. The end-products have potential application as asphalt additive or adhesive. Springer Science+Business Media, LLC, 2010 PET nationallicence Pentaerythrytol nationallicence Alcoholysis nationallicence Recycling nationallicence WAXD nationallicence TG/DTG nationallicence DSC nationallicence FT-IR nationallicence Mendes L. Instituto de Macromoléculas Professora Eloisa Mano-IMA, Universidade Federal do Rio de Janeiro-UFRJ, Centro de Tecnologia, Bloco J, P.O. Box 68525, 2030-21941-598, Avenida Horácio Macedo, Rio de Janeiro, RJ, Brazil aut Dias M. Instituto de Macromoléculas Professora Eloisa Mano-IMA, Universidade Federal do Rio de Janeiro-UFRJ, Centro de Tecnologia, Bloco J, P.O. Box 68525, 2030-21941-598, Avenida Horácio Macedo, Rio de Janeiro, RJ, Brazil aut Rodrigues T. Instituto de Macromoléculas Professora Eloisa Mano-IMA, Universidade Federal do Rio de Janeiro-UFRJ, Centro de Tecnologia, Bloco J, P.O. Box 68525, 2030-21941-598, Avenida Horácio Macedo, Rio de Janeiro, RJ, Brazil aut Journal of Polymers and the Environment Springer US; http://www.springer-ny.com 19/1(2011-03-01), 254-262 1566-2543 19:1<254 2011 19 10924 https://doi.org/10.1007/s10924-010-0276-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10924-010-0276-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Mendes L. Instituto de Macromoléculas Professora Eloisa Mano-IMA, Universidade Federal do Rio de Janeiro-UFRJ, Centro de Tecnologia, Bloco J, P.O. Box 68525, 2030-21941-598, Avenida Horácio Macedo, Rio de Janeiro, RJ, Brazil aut NATIONALLICENCE 700 1- Dias M. Instituto de Macromoléculas Professora Eloisa Mano-IMA, Universidade Federal do Rio de Janeiro-UFRJ, Centro de Tecnologia, Bloco J, P.O. Box 68525, 2030-21941-598, Avenida Horácio Macedo, Rio de Janeiro, RJ, Brazil aut NATIONALLICENCE 700 1- Rodrigues T. Instituto de Macromoléculas Professora Eloisa Mano-IMA, Universidade Federal do Rio de Janeiro-UFRJ, Centro de Tecnologia, Bloco J, P.O. Box 68525, 2030-21941-598, Avenida Horácio Macedo, Rio de Janeiro, RJ, Brazil aut NATIONALLICENCE 773 0- Journal of Polymers and the Environment Springer US; http://www.springer-ny.com 19/1(2011-03-01), 254-262 1566-2543 19:1<254 2011 19 10924 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer