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Einstellung der Netzwerk- und Domänenstruktur kationisch polymerisierter Epoxide
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Other Titles: | Adjustment of network- and domainstructure of cationically polymerised epoxides | Authors: | Lützen, Hendrik | Supervisor: | Hartwig, Andreas | 1. Expert: | Hartwig, Andreas | 2. Expert: | Wöhrle, Dieter | Abstract: | Cationically polymerised and highly crosslinked epoxy thermosets containing partially crystalline polyols are observed. The network- and domain formation is characterised with regards to possible phase separation of the partially crystalline polyole component. After thermoanalytical and mechanical characterization of the polymers, a proposed molecular order of the polyole component was discussed to be responsible for the observed toughening of the epoxy polymers. Due to the phase separated morphology kovalently crosslinked polymers showing a shape-memory effect are prepared and characterised. The results are transfered on a thermoplastic polyurethane containing block copolymers of different crystallinities to observe the influence of crystalline interactions on a stretchable polymer. |
Keywords: | Networkstructure, domainformation, cationic polymerisation, epoxy, thermosets | Issue Date: | 14-Feb-2013 | Type: | Dissertation | URN: | urn:nbn:de:gbv:46-00103008-16 | Institution: | Universität Bremen | Faculty: | FB2 Biologie/Chemie |
Appears in Collections: | Dissertationen |
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