Morphological variations in PMMA-modified epoxy mixtures by PEO addition
2002 (English)In: Polymer, ISSN 0032-3861, E-ISSN 1873-2291, Vol. 43, no 4, 1241-1248 p.Article in journal (Refereed) Published
Thermoplastic epoxy blends are successfully used commercially. The thermoplastic may serve as a toughening agent although other properties may also be improved. In the present study, microscopy and mechanical testing techniques were used to study morphology and ultimate properties of ternary epoxy/Poly(methyl methacrylate) (PMMA)-Poly(ethylene oxide) (PEO) blends. PEO is functioning like a compatibilizer by which the morphology of the resulting polymer mixture may be changed dramatically by only small amounts of PEO. Whilst stiffness was controled by the corresponding matrix of the ternary mixture, both strength and fracture toughness were a function of the defined morphology. However, the most efficient toughening agent was PMMA, in particular when present as a co-continuous PMMA-rich phase within the epoxy-rich matrix.
Place, publisher, year, edition, pages
2002. Vol. 43, no 4, 1241-1248 p.
epoxy modification, poly(methyl methacrylate), poly(ethylene oxide), poly(methyl methacrylate), poly(ethylene oxide), phase-separation, curing conditions, peo/pmma blends, miscibility, behavior, resins, polymers, polyethersulfone
IdentifiersURN: urn:nbn:se:kth:diva-21185ISI: 000172824400023OAI: oai:DiVA.org:kth-21185DiVA: diva2:339882
QC 201005252010-08-102010-08-10Bibliographically approved