Water absorption and moisture permeation properties of chitosan/poly(acrylamide-co-itaconic acid) IPC films
| Autor: | Pooja Jyotishi, M. Bajpai, Sunil Kumar Bajpai |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Thermogravimetric analysis
Absorption of water Materials science Polymers Acrylic Resins 02 engineering and technology 010402 general chemistry 01 natural sciences Biochemistry Chitosan chemistry.chemical_compound X-Ray Diffraction Structural Biology Polymer chemistry Spectroscopy Fourier Transform Infrared medicine Itaconic acid Fourier transform infrared spectroscopy Molecular Biology Aqueous solution Water Hydrogels Succinates General Medicine Hydrogen-Ion Concentration 021001 nanoscience & nanotechnology 0104 chemical sciences Molecular Weight chemistry Solubility Acrylamide Adsorption Swelling medicine.symptom 0210 nano-technology Nuclear chemistry |
| Zdroj: | International journal of biological macromolecules. 84 |
| ISSN: | 1879-0003 |
| Popis: | In this work, aqueous solutions of chitosan (Ch) and [poly(acrylamide(AAm)-co-itaconicacid(IA)] have been mixed to yield Ch/poly(AAm-co-IA) Inter-polyelectrolyte complex (IPC) films. The films were characterized by FTIR, X-ray diffraction (XRD) and thermo gravimetric analysis (TGA). There was remarkable increase in the crystalline nature of IPC films. The films were investigated for their water absorption capacity in the physiological fluid (PF) of pH 7.4 at 37 °C. The amount of IA present in the film forming solutions affected the water absorption behavior of the resulting films. The dynamic water uptake data were interpreted by various kinetic models. The effect of pH on the swelling ratio (SR) indicated that the films showed highest swelling in lower as well as higher pH media. The water vapor transmission rates (WVTR) were obtained in the range of 6000-6645 g/m(2)/day. |
| Databáze: | OpenAIRE |
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