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Conversion of colloidal aggregates into polymer networks on aging

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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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Acknowledgements

We gratefully acknowledge the kind help of Dr. S.M. Shivaprasad, National Physical Laboratory, New Delhi in obtaining XPS data. We also gratefully acknowledge the IFCPAR grant no. 2808-2 for financial support.

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  1. M. Habibur Rahman

    Present address: Department of Chemistry, University of Rajshahi, Bangladesh

Authors and Affiliations

  1. Polymer Science Unit, Indian Association for the Cultivation of Science, Jadavpur, 700032, Kolkata, India

    Tushar Jana, M. Habibur Rahman & Arun K. Nandi

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  1. Tushar Jana
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  2. M. Habibur Rahman
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  3. Arun K. Nandi
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Correspondence to Arun K. Nandi.

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Jana, T., Rahman, M.H. & Nandi, A.K. Conversion of colloidal aggregates into polymer networks on aging. Colloid Polym Sci 282, 555–561 (2004). https://doi.org/10.1007/s00396-003-0959-1

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  • DOI: https://doi.org/10.1007/s00396-003-0959-1

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