Photochromic Solid Materials Based on Poly(decylviologen) Complexed with Alginate and Poly(sodium 4-styrenesulfonate)

Luis Sanhueza, Joaquín Castro, Esteban Urzúa, Lorena Barrientos, Felipe Oyarzun-Ampuero, Héctor Pesenti, Toshimichi Shibue, Natsuhiko Sugimura, Wataru Tomita, Hiroyuki Nishide, Ignacio Moreno-Villoslada

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    Abstract

    Photochromic solid materials based on the cationic polymer poly(decylviologen) are reported. The solids were obtained by freeze-drying colloidal suspensions of nanocomplexes obtained by mixing aqueous solutions of the polycation with different solutions of polyanions such as poly(sodium 4-styrenesulfonate) or sodium alginate, at a cationic/anionic polymeric charge ratio of 0.7. The photochromic responses of the solid materials fabricated with alginate as complementary charged polyelectrolyte of the cationic polyviologen are faster than those of the solid materials fabricated with poly(sodium 4-styrenesulfonate), achieving coloration kinetics in the order of minutes, and discoloration kinetics in the order of hours for the former. Aromatic-aromatic interactions between the latter polyanion and the polyviologen may stabilize the dicationic form of the viologen derivative, increasing the necessary energy to undergo photoreduction, thus decreasing the reduction kinetics.

    Original languageEnglish
    Pages (from-to)13208-13217
    Number of pages10
    JournalJournal of Physical Chemistry B
    Volume119
    Issue number41
    DOIs
    Publication statusPublished - 2015 Oct 15

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    ASJC Scopus subject areas

    • Physical and Theoretical Chemistry
    • Materials Chemistry
    • Surfaces, Coatings and Films

    Cite this

    Sanhueza, L., Castro, J., Urzúa, E., Barrientos, L., Oyarzun-Ampuero, F., Pesenti, H., Shibue, T., Sugimura, N., Tomita, W., Nishide, H., & Moreno-Villoslada, I. (2015). Photochromic Solid Materials Based on Poly(decylviologen) Complexed with Alginate and Poly(sodium 4-styrenesulfonate). Journal of Physical Chemistry B, 119(41), 13208-13217. https://doi.org/10.1021/acs.jpcb.5b05963