English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/155337
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE
Exportar a otros formatos:

Title

New routes to difunctional macroglycols using ethylene carbonate: reaction with bis-(2-hydroxyethyl) terephthalate and degradation of poly(ethylene terephthalate)

AuthorsEspinoza García, Karina; Navarro, Rodrigo; Ramírez-Hernández, Aurelio; Marcos-Fernández, Ángel
KeywordsDegradation
Ethylene carbonate
Polyols
Poly(ethylene terephthalate)
Issue Date2017
PublisherElsevier
CitationPolymer Degradation and Stability 144: 195-206 (2017)
AbstractThe degradation of poly(ethylene terephthalate) by ethylene carbonate with potassium hydroxide was studied. Model reactions were carried out to determine the chemical species produced. Ethylene carbonate reacted with potassium hydroxide to yield oligomers with a limited content of carbonate groups. Bis(2-hydroxyethyl) terephthalate condensed to PET oligomers without significant incorporation of ethylene carbonate in the chains when potassium hydroxide was not present and produced difunctional oligomers with hydroxyl terminal groups containing aromatic rings esterified with polyether short chains and some residual carbonate groups when potassium hydroxide was added. Poly(ethylene terephthalate) was converted into difunctional oligomers of approximately 1000 to 2000 g¿mol-1 molecular weight with short polyether chains connecting the terephthalate rings and a significant content of carbonate groups. The resulting oligomers could find application as polyols for the synthesis of polyurethanes.
Publisher version (URL)http://dx.doi.org/10.1016/j.polymdegradstab.2017.08.018
URIhttp://hdl.handle.net/10261/155337
DOIhttp://dx.doi.org/10.1016/j.polymdegradstab.2017.08.018
Identifiersdoi: 10.1016/j.polymdegradstab.2017.08.018
issn: 0141-3910
e-issn: 1873-2321
Appears in Collections:(ICTP) Artículos
Files in This Item:
File Description SizeFormat 
accesoRestringido.pdf15,38 kBAdobe PDFThumbnail
View/Open
Show full item record
Review this work
 


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.