Conversion of colloidal aggregates into polymer networks on aging |
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Authors: | Tushar?Jana M?Habibur?Rahman Email author" target="_blank">Arun?K?NandiEmail author |
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Institution: | (1) Polymer Science Unit, Indian Association for the Cultivation of Science, Jadavpur, 700032 Kolkata, India;(2) Present address: Department of Chemistry, University of Rajshahi, Bangladesh |
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Abstract: | After long-term aging, surfactant-mediated colloidal aggregates of sulfonated polyaniline (S-PANI) and poly(vinylidene fluoride) (PVF2) converted into three-dimensional polymer networks, whereas colloidal crystals prepared from pure PVF2 remained unaltered. A model, where the surfactant tails anchored from the colloidal particles interdigitate with time resulting in coalescence of the particles to form the network morphology, has been proposed. X-ray photoelectron spectroscopy (XPS) revealed higher relative abundances of carbon atoms on the surface of the polymer networks than those of the colloidal aggregates, which adequately supports the proposed model. |
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Keywords: | Sulfonated polyaniline X-ray photoelectron spectroscopy Scanning electron microscopy Colloidal aggregates Polymer network |
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