Abstract
Poly(ethylene succinate)/SiO2 nanocomposites were prepared in situ with different SiO2 contents. 13C NMR spectra revealed that the hydroxyl end groups of poly(ethylene succinate) could form covalent bonds with the surface silanol groups of SiO2. These interactions had a significant positive effect on the molecular weight and mechanical properties of the nanocomposites. TEM revealed homogeneous dispersion of the nanoparticles, with some aggregates appearing at higher concentrations. Crystallization under isothermal and non-isothermal conditions was extensively studied. The nanoparticles acted as a nucleating agent and the nucleation activity was calculated for non-isothermal melt- and cold-crystallization. Activation energy of non-isothermal cold-crystallization was estimated using the isoconversional method of Friedman. Moreover, crystallization kinetics were analysed and spherulitic morphology also examined. The enzymatic hydrolysis rate of the nanocomposites was slowed down by the incorporation of the inorganic nanoparticles, attributed to the smaller available biodegradable surface and the existence of branched and crosslinked macromolecules.
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.
