Monte-Carlo Modeling of Exchange-Reactions in Polyesters - Dependence Of Copolymer Composition On The Exchange Mechanism (Articolo in rivista)

Type

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

Label

• Monte-Carlo Modeling of Exchange-Reactions in Polyesters - Dependence Of Copolymer Composition On The Exchange Mechanism (Articolo in rivista) (literal)

Anno

• 1993-01-01T00:00:00+01:00 (literal)

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

• 10.1021/ma00062a009 (literal)

Alternative label

• montaudo MS (1993)
  Monte-Carlo Modeling of Exchange-Reactions in Polyesters - Dependence Of Copolymer Composition On The Exchange Mechanism
  in Macromolecules (Print)
  (literal)

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

• montaudo MS (literal)

Pagina inizio

• 2451 (literal)

Pagina fine

• 2454 (literal)

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

• scimago indice (literal)

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

• 26 (literal)

Rivista

• Macromolecules (Rivista)

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

• 5 (literal)

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

• 10 (literal)

Note

• ISI Web of Science (WOS) (literal)

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

• polimeri Catania (literal)

Titolo

• Monte-Carlo Modeling of Exchange-Reactions in Polyesters - Dependence Of Copolymer Composition On The Exchange Mechanism (literal)

Abstract

• Abstract: Two models were developed which describe the synthesis of an A/B copolyester via reactive blending of a mixture of homopolyester A and homopolyester B. The models take into account two different exchange mechanisms: the first one describes inner-group ester-ester exchange, and the second describes the process in which an active terminal group attacks an ester group. The two models were incorporated in a computer program, MOSES, which simulates the exchange reaction using the Monte Carlo approach. The models yield different values for the composition of the copolymer formed: the first one predicts that the copolymer composition is always identical to the sample composition, whereas the second one predicts that deviations can occur in the initial stages of the process. This result can be used to discriminate between the two exchange mechanisms. The predictions of the two models are compared with recent experimental mass spectral data concerning a poly(ethylene adipate-co-ethylene terephthalate) copolyester. Comparison with experiment favors the active end group mechanism. The dependence of copolymer composition on reaction conditions was investigated using the MOSES program. From the overall set of concentration values calculated, a simple analytical formula was found (eq 9) which allows computation of the copolymer composition from the knowledge of the reaction conditions. (literal)

Prodotto di

• Institute of chemistry and technology of polymers (ICTP) (Istituto)

Autore CNR

• MAURIZIO MONTAUDO (Unità di personale interno)

Incoming links:

Autore CNR di

• MAURIZIO MONTAUDO (Unità di personale interno)

Prodotto

• Institute of chemistry and technology of polymers (ICTP) (Istituto)

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

• Macromolecules (Rivista)