Author:
PALAK HANDAN,KAYAOGLU BURÇAK KARAGÜZEL
Abstract
In this study, morphological, chemical and thermal characteristics of biobased and biodegradable anthocyanin-loaded polylactide (PLA) nanofibrous membranes were investigated. To prepare electrospinning solutions, PLA was dissolved at a concentration of 10% (wv-1) in a solvent system of chloroform/dimethylformamide (75/25% vv-1), and anthocyanin at different concentrations (1, 2, and 3% wv−1) was added into the polymer solutions. The prepared solutions were electrospun by using a single syringe electrospinning setup. The morphological, chemical and thermal structure of the neat and anthocyanin-loaded PLA nanofibrous membranes were characterized via Scanning Electron Microscopy (SEM), Fourier Transform Infrared Spectroscopy (FT-IR), and Differential Scanning Calorimetry (DSC), respectively. The FT-IR spectra proved the incorporation of anthocyanin into nanofibrous membranes successfully. It was observed that when anthocyanin was added into the polymer solution; bead-free nanofibers were produced, and when the concentration of anthocyanin was increased, mean fiber diameter increased as well. In addition, anthocyanin loading did not affect the crystallization behavior of PLA; however, the glass transition temperature (Tg) of the nanofibrous membranes including no anthocyanin in the structure was higher than those of the other membranes including anthocyanin.
Publisher
Technical University of Liberec
Subject
Polymers and Plastics,Materials Science (miscellaneous),Chemical Engineering (miscellaneous),Business and International Management
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