Please use this identifier to cite or link to this item:

TitleLaurolactam as a stabilizer against the thermo-oxidative degradation of poly(ether-ester)
Author(s)Botelho, Gabriela
Gijsman, P.
Machado, A. V.
Queirós, Arlete
Thermo-oxidative degradation
Issue dateSep-2004
JournalPolymer Degradation and Stability
Citation"Polymer degradation and stability". 85:3 (2004) 991-995.
Abstract(s)In this study we examined the influence of laurolactam on the thermo-oxidative degradation of a copolymer of poly(butylene terephthalate) and polybutylene glycol and of di(ethyleneglycol) dibenzoate, used as model compound. The degradation was followed by measurement of the oxygen uptake, FTIR and 1H-NMR spectroscopy and measurement of the intrinsic viscosity changes during degradation. A stabilizing effect of laurolactam on the thermo-oxidative degradation could be observed, as an induction time was defined in which hydroperoxides were not formed and molecular weight was kept constant. After this period the oxygen uptake, hydroperoxide formation and polymer conversion increased more slowly.
AccessOpen access
Appears in Collections:CDQuim - Artigos (Papers)
IPC - Artigos em revistas científicas internacionais com arbitragem

Files in This Item:
File Description SizeFormat 
science[1].pdf238,44 kBAdobe PDFView/Open

Partilhe no FacebookPartilhe no TwitterPartilhe no DeliciousPartilhe no LinkedInPartilhe no DiggAdicionar ao Google BookmarksPartilhe no MySpacePartilhe no Orkut
Exporte no formato BibTex mendeley Exporte no formato Endnote Adicione ao seu ORCID