This thesis describes an investigation of the structure and viscoelastic properties of telechelic polymers as well as the dynamic and dielectric properties of ethyl acrylate-based ionomers, a material of medium dielectric constant. / Stress relaxation studies of low molecular weight sodium carboxylate-terminated polystyrene and polybutadiene will show that time-temperature superposition does not hold for samples with greater than 6 mole % ion content. It is shown that two mechanisms are operative, the first proceeding with an activation energy of circa 600 kJ/mole and the second proceeding with an activation energy of circa 142 kJ/mole at T(,g) and at a rate of 2.9 x 10('-6) sec('-1). / The dynamic mechanical and dielectric properties of a series of ethyl acrylate-based ionomers are described in the second part of this thesis. The results are consistent with the hypothesis that below 12 mole % the ions form simple multiplets which act as transient cross-links, while above that concentration cluster formation is encountered.
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:QMM.77153 |
| Date | January 1982 |
| Creators | Polatajko, Elsa S. |
| Publisher | McGill University |
| Source Sets | Library and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada |
| Language | English |
| Detected Language | English |
| Type | Electronic Thesis or Dissertation |
| Format | application/pdf |
| Coverage | Doctor of Philosophy (Department of Chemistry) |
| Rights | All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated. |
| Relation | alephsysno: 000137872, proquestno: AAINK58123, Theses scanned by UMI/ProQuest. |
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