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Synthesis of poly(AN)/poly(AA‐ co ‐AM) hydrogel nanocomposite with electrical conductivity and antibacterial properties
Author(s) -
Hosseinzadeh Hossein,
Barghi Ali
Publication year - 2019
Publication title -
polymer composites
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.577
H-Index - 82
eISSN - 1548-0569
pISSN - 0272-8397
DOI - 10.1002/pc.25080
Subject(s) - materials science , nanocomposite , swelling , electrical resistivity and conductivity , scanning electron microscope , conductivity , fourier transform infrared spectroscopy , polymerization , aniline , transmission electron microscopy , polymer chemistry , arrhenius equation , nuclear chemistry , chemical engineering , composite material , polymer , activation energy , nanotechnology , organic chemistry , chemistry , electrical engineering , engineering
In this study, a novel conductive hydrogel nanocomposite (CHN) was prepared using chemical oxidative polymerization of aniline (AN), acrylic acid (AA), and acrylamide (AM) and subsequent in situ synthesis of silver nanoparticles. The structure of CHNs was characterized by Fourier transform infrared, scanning electron microscopy, Transmission electron microscopy, EDX, X‐ray diffraction, and UV‐Vis analysis techniques and a proposed mechanism for the preparation of CHNs was also suggested. The maximum water‐swelling capacity (78 g g −1 ) was achieved under the optimum conditions that found to be: AA = 0.2 mol L −1 , AM = 0.18 mol L −1 , AN = 0.1 mol L −1 , swelling time = 180 min, and temperature = 25°C. In addition, the effect of reaction parameters were studied with respect to the percent of impregnated poly(AN) within nanocomposites. Further, the electrical conductivity of CHN samples was found to be increased with the increase in AN content and temperature whose conductivity lies in the range 2.1 to 8.8 × 10 3 S cm −1 . The temperature dependence of electrical conductivity indicates that composites follow Arrhenius model. Moreover, the synthesized CHNs demonstrated an antibacterial action against Gram‐negative Escherichia coli bacterium. In conclusion, durable antibacterial and electrically conductive CHNs can be suitable for different types of applications in many fields i.e . in biological systems, wound dressing, catalysis, water purification, and flexible electrodes for supercapacitors. POLYM. COMPOS., 40:2724–2733, 2019. © 2018 Society of Plastics Engineers