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Titolo:
Influence of sequence of chemical reactions on kinetics and solid state behavior for bisphenol A diglycidyl ether-bisphenol A - sulfanilamide ternaryblends
Autore:
Fainleib, A; Galy, J; Pascault, JP; Sue, HJ;
Indirizzi:
Natl Acad Sci Ukraine, Inst Macromol Chem, UA-02160 Kyiv, Ukraine Natl Acad Sci Ukraine Kyiv Ukraine UA-02160 Chem, UA-02160 Kyiv, Ukraine Inst Natl Sci Appl Lyon, Mat Macromol Lab, F-69621 Villeurbanne, France Inst Natl Sci Appl Lyon Villeurbanne France F-69621 Villeurbanne, France Texas A&M Univ, Dept Engn Mech, College Stn, TX 77843 USA Texas A&M Univ College Stn TX USA 77843 n Mech, College Stn, TX 77843 USA
Titolo Testata:
MATERIALS RESEARCH INNOVATIONS
fascicolo: 2-3, volume: 4, anno: 2001,
pagine: 179 - 186
SICI:
1432-8917(200101)4:2-3<179:IOSOCR>2.0.ZU;2-Y
Fonte:
ISI
Lingua:
ENG
Soggetto:
MECHANICAL-PROPERTIES; EPOXY-RESINS; PEROXY DERIVATIVES; AMINE NETWORKS; POLYMERIZATION; DENSITY; SYSTEM;
Keywords:
kinetics; ternary blends; bisphenol A diglycidyl ether;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Engineering, Computing & Technology
Citazioni:
27
Recensione:
Indirizzi per estratti:
Indirizzo: Fainleib, A Natl Acad Sci Ukraine, Inst Macromol Chem, Kharkivske Shose 48, UA-02160 Kyiv, Ukraine Natl Acad Sci Ukraine Kharkivske Shose 48 Kyiv Ukraine UA-02160
Citazione:
A. Fainleib et al., "Influence of sequence of chemical reactions on kinetics and solid state behavior for bisphenol A diglycidyl ether-bisphenol A - sulfanilamide ternaryblends", MAT RES INN, 4(2-3), 2001, pp. 179-186

Abstract

The kinetics of reaction of ternary blends based on Bisphenol A diglycidylether, Bisphenol A and sulfanilamide curing agent was investigated using FTIR, HPLC, SEC following two different synthesis paths. Four the same initial composition prepolymers differing by the cross-link point distribution and the chain length between cross-links have been synthesized and their solid state behavior has been studied. For the formulation DGEBA:SAA:BA = 4.0:1.25:1.5 mol (catalyst - 0.005 e.e.w. DGEBA), though the schedules have different kinetics, finally the prepolymers with equal conversion of epoxy groups and mass-average molar mass were obtained by both schedules. The dynamic mechanical spectroscopy performed in the glass transition region displaysthe evolution of the viscoelastic characteristics as a function of cross-link density. For similar formulations networks obtained by schedule 1 have higher values of T-g and sigma (y) than networks obtained by schedule 2, perhaps due to a higher real cross-link density.

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Documento generato il 07/07/20 alle ore 12:01:53