Effect of modified ZnO nanoparticles with biosafe molecule on the morphology and physiochemical properties of novel polycaprolactone nanocomposites. (20th April 2016)

• Record Type: Journal Article
• Authors: Mallakpour, Shadpour; Nouruzi, Nasrin
• Is Part Of: Polymer. Volume 89(2016)
• Page Start: 94
• Page End: 101
• Publication Date: 2016-04-20
• Subjects: Nanocomposites -- Modified ZnO nanoparticles -- Polycaprolactone -- Ultrasonic irradiation -- Tensile test -- Poly(vinyl alcohol); Polymers -- Periodicals; Polymerization -- Periodicals; Polymères -- Périodiques; Polymérisation -- Périodiques; 547.7
• DOI: 10.1016/j.polymer.2016.02.038
• Languages: English
• ISSNs: 0032-3861

Abstract

Abstract: We prepared nanocomposites (NCs) based on polycaprolactone (PCL) and poly(vinyl alcohol)-modified ZnO, using ultrasound irradiation. First, the surface modification of nanoparticles (NPs) was accomplished, in order to increase the compatibility and dispersity in the polymer matrix. Then PCL composite films containing different amounts of modified NPs were achieved through solvent casting method using dichloromethane as solvent. Transmission electron microscopy images verified the presence of NPs in the polymer matrix. The films were characterized by Fourier transform infrared spectroscopy, X-ray diffraction, thermogravimetric analysis and ultraviolet–visible absorption spectra. The nature of interaction between PCL and the NPs was determined by Fourier transform infrared spectroscopy. Tensile tests for the prepared films with different NP loadings showed that tensile strength of the NCs have been significantly improved compared with pure PCL. Graphical abstract: Highlights: PCL/ZnO-PVA NCs were fabricated via ultrasonic irradiation, as a green method. ZnO NPs were modified with PVA, as a biodegradable and biocompatible agent. Surface modification of NPs increased their compatibility in the polymer matrix. The effect of NPs content, on the various properties of the NCs was investigated. TEM and FE-SEM images of the NCs verified their well dispersion in the matrix.