Jeffamine-epoxy toughened unsaturated polyester, interpenetrating polymer network (IPN)

dc.contributor.authorShaker, Ziad
dc.description.abstractA series (15:85%) translucent intact IPNs made of a reactive rubber (Jeffamine™), a commercially available epoxy and unsaturated polyester were prepared. All IPNs showed increased toughness with incorporation of the Jeffoxy rubber. DMTA data showed a single Tg phenomena and narrow peak widths with a shift in Tg for all rubber containing IPNs. Jeffoxy DMTA data showed high molecular weight tri-amine T-5000 with highest tan~ value (2xT-403). DSC calculations showed complete extent of cure at 90°C for an Sh cure time. A 45% xi increase in Izod impact strength (toughness) with least standard deviation recorded for T-509 containing IPN. T-509 strength was comparable to that of the pure PE. Stiffuess and strength values documented for all IPNs using a three-point. bend flexural test. Material with the highest flexural modulus was that of linear diamine D-2000. Highest strength recorded for T-403 and D-2000 IPNs. SEM images showed T-509 with no scattered particles (l-20µm) suggesting good distribution of rubber particles in polyester. TGA values compared well with that of the neat polyester the exception was that ofT-403 which exhibited a 20°C decrease.
dc.description.departmentChemistry and Biochemistry
dc.format.extent83 pages
dc.format.medium1 file (.pdf)
dc.identifier.citationShaker, Z. G. (1999). Jeffamine-epoxy toughened unsaturated polyester, interpenetrating polymer network (IPN) (Unpublished thesis). Southwest Texas State University, San Marcos, Texas.
dc.subjectpolymer networks
dc.subjectinterpenetrating polymer networks
dc.subjectdynamical Mmechanical thermal analysis
dc.titleJeffamine-epoxy toughened unsaturated polyester, interpenetrating polymer network (IPN)
dc.typeThesis Texas State University of Science


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