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Title: Nanoencapsulation of montmorillonite clay within poly (ethylene glycol) nanobeads by electrospraying
Journal: Journal of Applied Polymer Science
Author: 1. Wan Ahmad Kamil Mahmood, Mohammad Hossein Azarian, Wan Farahhanim bt Wan Fathilah, Eunice Kwok
Year: 2017
Address: 1. School of Chemical Sciences, Universiti Sains Malaysia, Minden, 11800 Penang, Malaysia
Abstract: The present study describes the preparation and characterization of a novel nanocomposite, based on montmorillonite clay (MMT) encapsulation in poly(ethylene glycol) (PEG) by an electrospraying process. PEG/MMT nanocomposites with MMT contents ranging from 1 to 5 wt % were successfully prepared and characterized in relation to their morphological, spectroscopic, structural, and thermal properties. Scanning electron microscopy, transmission electron microscopy, and atomic force microscopy micrographs showed that the PEG nanobeads formed spherical shapes, and with increasing amount of MMT clay, the size of the beads decreased significantly, ranging from 120 to 3.7 nm. The Fourier transform infrared spectroscopy results suggested that there was no significant chemical interaction between PEG and MMT clay. However, the d-spacing of MMT clay in PEG/MMT increased, a clear indication of the intercalation of PEG in the interlayer spaces of MMT clay. Furthermore, the thermal stability of PEG polymer decreased upon encapsulation of MMT clay in PEG/MMT composites. Nanoindentation results showed that the hardness and Young’s modulus of the PEG/MMT composites increased with 3 wt % loading of MMT.
Keywords: biodegradable; clay; composites; nanostructured polymers
Application: Drug Delivery, Nanocomposite
Product Model 1: Syringe Pump (SP1000)
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URL: http://onlinelibrary.wiley.com/doi/10.1002/app.45048/full#="http://onlinelibrary.wiley.com" & "/doi/10.1002/app.45048/full"#