Abstract
An investigation was carried out of the segmental and normal mode dynamics in multifunctional polyhedral oligomeric silsesquioxane (POSS)/polypropylene oxide (PPO) nanonetworks. The reaction kinetics and thermal properties of POSS/PPO nanonetworks are studied by Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). Dynamic behavior is investigated by broadband dielectric relaxation spectroscopy (DRS) and dynamic mechanical spectroscopy (DMS) over a wide range of frequency and temperature. Before the onset of reaction, POSS nanoparticles promote motions of PPO chains in nanocomposites. During the formation of nanonetworks, however, the presence of POSS nanoparticles causes gradual increase in the time scale of the segmental (α) and the normal mode (αN) process in POSS/PPO nanonetworks. Comparison of DRS and DMS results for the α process reveals identical trends with respect to POSS concentration and temperature. A detailed account of t...
Sign-in/Register to access full text options 
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.
