Thermal degradation of poly(butylene terephthalate) at the processing temperature (Articolo in rivista)

Type

• Prodotto della ricerca (Classe)
• Articolo in rivista (Classe)

Label

• Thermal degradation of poly(butylene terephthalate) at the processing temperature (Articolo in rivista) (literal)

Anno

• 2004-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.1016/S0141-3910(03)00167-8 (literal)

Alternative label

• F.Samperi, C.Puglisi, R.Alicata, G.Montaudo (2004)
  Thermal degradation of poly(butylene terephthalate) at the processing temperature
  in Polymer degradation and stability
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• F.Samperi, C.Puglisi, R.Alicata, G.Montaudo (literal)

Pagina inizio

• 11 (literal)

Pagina fine

• 17 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 83 (literal)

Rivista

• Polymer degradation and stability (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note

• No. Citazione=14; Autocitazione=3; Motore utilizzato per le citazioni=Isiwebofknowledge.com (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali

• 8 (literal)

Note

• ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• CNR, UNIVERSITA'. (literal)

Titolo

• Thermal degradation of poly(butylene terephthalate) at the processing temperature (literal)

Abstract

• We previously reported an investigation on the isothermal degrdn. of poly(ethylene terephthalate) (PET) and present here a parallel study on poly(butylene terephthalate) (PBT). Although the two polyesters are structurally quite similar, our results show that the presence of the butylene unit in PBT is apparently able to induce significant changes in the isothermal degrdn. of PBT compared to PET. A rationalization of the differences obsd. is offered. Several isothermal degrdn. expts. on PBT were conducted at 270-350°C in order to simulate the reactions that take place in its actual thermal processing of. Structural characterization of the reaction products was performed by MALDI mass spectrometry and by NMR anal. The results indicate that cyclic oligomers of PBT formed at temps. below 290°C by ring-chain equilibration undergo thermal decompn. at higher temps. by a ß-hydrogen transfer mechanism, as well as the open PBT chains. The formation of unsatd. oligomers was detected by MALDI and also by 1H and 13C NMR techniques, whereas in contrast to the thermally degraded PET sample, terephthalic anhydride-contg. oligomers were not obsd. Formation of butadiene was suggested by 1H NMR data on PBT samples processed at various temps. (literal)

Prodotto di

• Istituto di chimica e tecnologia dei polimeri (ICTP) (Istituto)

Autore CNR

• GIORGIO MONTAUDO (Unità di personale esterno)
• CONCETTO PUGLISI (Unità di personale interno)
• FILIPPO SAMPERI (Persona)

Insieme di parole chiave

• Keywords of "Thermal degradation of poly(butylene terephthalate) at the processing temperature" (Insieme di parole chiave)

Incoming links:

Autore CNR di

• FILIPPO SAMPERI (Persona)
• CONCETTO PUGLISI (Unità di personale interno)
• GIORGIO MONTAUDO (Unità di personale esterno)

Prodotto

• Istituto di chimica e tecnologia dei polimeri (ICTP) (Istituto)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Polymer degradation and stability (Rivista)

Insieme di parole chiave di

• Keywords of "Thermal degradation of poly(butylene terephthalate) at the processing temperature" (Insieme di parole chiave)