Influence of Peripheral Architecture on the Properties of Aryl Polyhedral Oligomeric SilSesquioxanes (POSS)
AIR FORCE RESEARCH LAB EDWARDS AFB CA PROPULSION DIRECTORATE SPACE AND MISSILE PROPULSION DIV/PROPULSION MATERIALS APPLICATIONS BRANCH
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The peripheral architecture of Aryl Polyhedral Oligomeric Silsesquioxanes POSS plays a significant role in observed macroscopic properties including phase transitions, thermal stability, and solubility. A relationship between these properties and POSS packing efficiency is offered, providing evidence that peripheral interactions require consideration in resolving the observed phenomena. These interactions further assume a pivotal role in determining POSS phase behavior in host materials such as low molecular weight solvents and polymers. The findings reported herein will improve the efficacy of designing POSS molecules for the purposes of fabricating multifunctional polymer matrix composites and protective barrier coatings for organic materials.
- Polymer Chemistry