Abstract
This contribution concerns the microstructure of POSS-based networks previously reported for their shape memory properties [LeeMacromolecules 2008, 41, 4730−4738]. Simultaneous wide-angle and small-angle X-ray scattering (WAXS/SAXS) analysis has revealed highly ordered nanoscale structures in polyhedral silsesquioxane–poly(e-caprolactone) (POSS-PCL) semicrystalline cross-linked nanocomposites. Architecturally, the oligomers used for network formation resemble a highly asymmetrical triblock copolymer featuring a single POSS moiety centered between two PCL chains, yielding two short tethers for a total molecular weight of 2600 g/mol. WAXS patterns of the diol-terminated POSS-PCL sample showed the existence of both crystalline reflections of the PCL orthorhombic phase and crystalline reflections of the POSS rhombohedral phase, indicating microphase separation that allows independent crystallization. Accordingly, two endothermic thermal transitions associated with the melting of each crystal phase were exhibi...
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
