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Selective encapsulation-release and photodegradation characteristics of organic dyes by cross-linked fluoroalkyl end-capped oligomeric nanocomposites possessing aromatic siloxane segments as core units

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Abstract

Cross-linked fluoroalkyl end-capped oligomeric nanocomposites possessing aromatic siloxane segments as core units [RF-oligomer/Ar-SiO 2 ] exhibited an encapsulation ability toward organic dyes such as methylene blue (MB), rhodamine B (RB), 4-hydroxyazobenzene-4′-sulfonic acid sodium salt, and methyl orange (MO). In these organic dyes, MB and RB are effectively encapsulated into these nanocomposites in aqueous solutions. RF-oligomer/Ar-SiO 2 nanocomposite-encapsulated organic dyes were found to exhibit a controlled releasing characteristic toward these encapsulated dyes, and encapsulated MB was not released into water; however, this encapsulated dye was smoothly released into acetone under similar conditions. Interestingly, RF-oligomer/Ar-SiO 2 nanocomposites possessing biphenylene segments as core units were able to exhibit not a photostable characteristic but extremely higher photodegradation ability toward MO under UV light irradiation.

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Authors and Affiliations

  1. Department of Frontier Materials Chemistry, Graduate School of Science and Technology, Hirosaki University, Hirosaki, 036-8561, Japan

    Yuki Goto & Hideo Sawada

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  1. Yuki Goto
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  2. Hideo Sawada
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Correspondence to Hideo Sawada.

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Goto, Y., Sawada, H. Selective encapsulation-release and photodegradation characteristics of organic dyes by cross-linked fluoroalkyl end-capped oligomeric nanocomposites possessing aromatic siloxane segments as core units. Colloid Polym Sci 287, 1317–1323 (2009). https://doi.org/10.1007/s00396-009-2099-8

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  • DOI: https://doi.org/10.1007/s00396-009-2099-8

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