http://www.cnr.it/ontology/cnr/individuo/prodotto/ID169804
On the cyclo-depolymerization of alkyl aromatic polyesters and the in situ polymerization of the cyclic oligomers produced (Contributo in atti di convegno)
- Type
- Label
- On the cyclo-depolymerization of alkyl aromatic polyesters and the in situ polymerization of the cyclic oligomers produced (Contributo in atti di convegno) (literal)
- Anno
- 2008-01-01T00:00:00+01:00 (literal)
- Alternative label
Alessi M., Stagnaro P., Conzatti L., Taglialatela Scafati S., Hodge P. (2008)
On the cyclo-depolymerization of alkyl aromatic polyesters and the in situ polymerization of the cyclic oligomers produced
in IV International Conference on Times of Polymers (TOP) & Composites, Ischia (Na) Italy
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Alessi M., Stagnaro P., Conzatti L., Taglialatela Scafati S., Hodge P. (literal)
- Pagina inizio
- Pagina fine
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note
- AIP Conference Proceedings of IV International Conference on Times of Polymers (TOP) & Composites, 2008, vol.1042, p. 334-336 (literal)
- Note
- ISI Web of Science (WOS) (literal)
- Scopu (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- Alessi M., Stagnaro P., Conzatti L. ISMAC Genova
Taglialatela Scafati S. ISMAC Milano
Hodge P. Department of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, UK (literal)
- Titolo
- On the cyclo-depolymerization of alkyl aromatic polyesters and the in situ polymerization of the cyclic oligomers produced (literal)
- Abstract
- Macrocyclic oligomers (MCOs) of some commercial alkyl aromatic polyesters (PET, PTT, PBT) were prepared by cyclo-depolymerization (CDP) of the polymers in refluxing 1,2-dichlorobenzene with di-n-butyltin oxide as a transesterification catalyst. The mixtures of MCOs and residual polymer obtained at varying polymer/solvent ratios were separated and characterized by thorough GPC and DSC analyses. The higher the initial polymer concentration the lower was the yield of MCOs, and vice versa. Rheological measurements carried out on polymer/MCO mixtures showed a decrease in the melt viscosity with increasing amount of MCOs. Moreover, the MCOs present in these systems easily underwent entropically-driven ring-opening polymerizations (ED-ROPs) to reform the parent polyesters. (literal)
- Prodotto di
- Autore CNR
Incoming links:
- Prodotto
- Autore CNR di
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi