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Titolo:
Network formation studied by temperature scanning Brillouin scattering anddifferential scanning calorimetry techniques. II.
Autore:
Castiglia, SRV; Fioretto, D; Verdini, L; Samios, D;
Indirizzi:
Univ Fed Rio Grande Sul, Inst Quim, BR-91501970 Porto Alegre, RS, Brazil Univ Fed Rio Grande Sul Porto Alegre RS Brazil BR-91501970 BC, RS, Brazil Univ Perugia, Ist Nazl Fis Mat, I-06100 Perugia, Italy Univ Perugia Perugia Italy I-06100 Nazl Fis Mat, I-06100 Perugia, Italy Univ Perugia, Dipartimento Fis, I-06100 Perugia, Italy Univ Perugia Perugia Italy I-06100 artimento Fis, I-06100 Perugia, Italy
Titolo Testata:
JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS
fascicolo: 12, volume: 39, anno: 2001,
pagine: 1326 - 1336
SICI:
0887-6266(20010615)39:12<1326:NFSBTS>2.0.ZU;2-C
Fonte:
ISI
Lingua:
ENG
Soggetto:
SOL-GEL TRANSITION; LIGHT-SCATTERING; EPOXY-RESINS; STRUCTURAL RELAXATION; DIGLYCIDYL ETHER; SPECTROSCOPY; ANHYDRIDE; STOICHIOMETRY; DYNAMICS; SYSTEMS;
Keywords:
Temperature Scanning Brillouin Scattering (TSBS); differential scanning calorimetry (DSC); epoxy resin; gelation point; network;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
28
Recensione:
Indirizzi per estratti:
Indirizzo: Castiglia, SRV Univ Fed Rio Grande Sul, Inst Quim, Av Bento Goncalves,9500, BR-91501970 Porto Alegre, RS, Brazil Univ Fed Rio Grande Sul Av Bento Goncalves,9500 Porto Alegre RS Brazil BR-91501970 BC
Citazione:
S.R.V. Castiglia et al., "Network formation studied by temperature scanning Brillouin scattering anddifferential scanning calorimetry techniques. II.", J POL SC PP, 39(12), 2001, pp. 1326-1336

Abstract

The reaction of 1,4-butanediol diglycidyl ether (EP) with cis-1,2-cyclohexanedicarboxylic anhydride (CH) and triethylamine (TEA) as an initiator was studied with temperature scanning Brillouin spectroscopy (TSBS) and differential scanning calorimetry (DSC). The evolution of the reaction process (liquid-gel-solid) was investigated as a function of the epoxy molar fraction (x(EP),), for sample compositions varying from an epoxy excess to an anhydride excess. The dependence of the final conversion factors alphar(DSC) and alphar(TSBS) and the kinetic parameters E-DSC and E-TSBS on x(E1), is presented. A comparison of the experimental gelation point (Pgel) behavior and the expected theoretical one, described by the Flory theory, is also reported. (C) 2001 John Wiley & Sons, Inc.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 06/04/20 alle ore 01:56:24