Synthesis, characterization and bending behavior of electroresponsive sodium alginate/poly(acrylic acid) interpenetrating network films under an electric field stimulus
SENSORS AND ACTUATORS B-CHEMICAL, cilt.202, ss.878-892, 2014 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 202
- Basım Tarihi: 2014
- Doi Numarası: 10.1016/j.snb.2014.06.051
- Dergi Adı: SENSORS AND ACTUATORS B-CHEMICAL
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.878-892
- Anahtar Kelimeler: Sodium alginate, Acrylic acid, Dielectric constant, Electroresponsive, Swelling, ACRYLIC-ACID, CONTROLLED-RELEASE, PERVAPORATION SEPARATION, POLY(ACRYLIC ACID), ALGINATE MEMBRANES, RESPONSE CHARACTERIZATION, POLYELECTROLYTE HYDROGEL, POLY(ETHYLENE GLYCOL), DIELECTRIC-PROPERTIES, WATER MIXTURES
- İstanbul Üniversitesi-Cerrahpaşa Adresli: Hayır
Özet
Dielectric characterization and electroresponsive behavior of glutaraldehyde (GA) crosslinked sodium alginate/poly(acrylic acid) (SA-AA-GA) interpenetrating polymer network (IPN) films were studied. Further characterizations of the films were performed by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), differential scanning calorimetry (DSC), and swelling measurements. Sodium alginate (SA) and SA-AA semi-IPN films were also prepared for comparison. The effect of initial concentration of acrylic acid on the dielectric and thermal properties of SA-AA semi-IPN and SA-AA-GA full-IPN films was studied. The presence of poly(acrylic acid) and the crosslinking of SA by GA decreased the dielectric constant and the conductivity values. The bending of SA-AA-GA films in an electrolyte solution at 8 V was investigated as a function of electrolyte (NaCl) concentration (0.05-0.15 M) and the composition of the film. The response rate of SA-AA-GA films to electric field decreased with the increase in PAA content of the film. Amongst the NaCl solutions with various concentrations, the maximum total bending of SA-AA-GA film was obtained in 0.15 M NaCl solution. (C) 2014 Elsevier B.V. All rights reserved.