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dc.contributor.authorSafranski, David L.en_US
dc.date.accessioned2008-06-10T20:42:08Z
dc.date.available2008-06-10T20:42:08Z
dc.date.issued2008-03-31en_US
dc.identifier.urihttp://hdl.handle.net/1853/22635
dc.description.abstractThe objective of this work is to characterize and understand structure- mechanical property relationships in (meth)acrylate networks. The networks are synthesized from mono-functional (meth)acrylates with systematically varying sidegroup structure and multi-functional crosslinkers with varying mole fraction and functionality. Fundamental trends are established between the network chemical structure, crosslink density, glass transition temperature, rubbery modulus, failure strain, and toughness. The glass transition temperature of the networks ranged from -29 to 112 °C, and the rubbery modulus ranged from 2.8 to 129.5 MPa. At low crosslink density (Er < 10 MPa) network chemistry has a profound effect on network toughness. At high crosslink densities (Er > 10 MPa), network chemistry has little influence on material toughness. The characteristic ratio of the mono-functional (meth)acrylates components is unable to predict trends in thermoset toughness as a function of chemical structure, as is accomplished for thermoplastics. The cohesive energy density is a better tool for prediction of network mechanical properties. Due to superior mechanical properties, networks with phenyl ring sidegroups are further investigated to understand the effect of phenyl ring distance on toughness. This work provides a fundamental basis for designing (meth)acrylate shape memory polymer networks with specific failure strain, toughness, glass transition temperature, and rubbery modulus.en_US
dc.publisherGeorgia Institute of Technologyen_US
dc.subjectShape memoryen_US
dc.subjectToughnessen_US
dc.subjectPolymersen_US
dc.subjectMechanical propertiesen_US
dc.subjectChemical structureen_US
dc.subjectAcrylateen_US
dc.subject.lcshShape memory alloys
dc.subject.lcshMethyl methacrylate
dc.subject.lcshPolymer networks
dc.titleEffect of chemical structure and crosslinking density on the thermo-mechanical properties and toughness of (meth)acrylate shape-memory polymer networksen_US
dc.typeThesisen_US
dc.description.degreeM.S.en_US
dc.contributor.departmentMaterials Science and Engineeringen_US
dc.description.advisorCommittee Chair: Kenneth Gall; Committee Member: David Bucknall; Committee Member: Karl Jacoben_US


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