| Popis: |
Hybrid organic-inorganic materials is a new class of materials having important technological potential. In this thesis, Polyhedral Oligomeric Silsesquioxane (POSS) is used as an inorganic building block which is tethered to an organic polymer. The influence of POSS on the thermal properties as well as the morphology of the final hybrid is the main focus of this work. Different polymerization chemistries were utilized to incorporate POSS into an organic polymer. Cyclooctadiene was copolymerized with CpPOSS norbornene via Ring-Opening Metathesis Polymerization. The poly(butadiene-r-POSS) series showed lamellae formation after film casting for POSS loading higher than 30 wt%. IbuPOSS-NCO was then attached to a series of well-defined alcohol-terminated polystyrene (PSOH). The alcohol-terminated polystyrene were synthesized by the anionic polymerization of styrene, terminating the reaction with the endcapping of the living polymer by ethylene oxide, which enabled precise control over the molecular weight and the polydispersity (PDI |
