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Controlled release of fragrance with cross-linked polymers: synthesis and hydrolytic property of cross-linked amphiphilic copolymers bearing octanal-derived acetal moieties

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Abstract

A cross-linked amphiphilic polymethacrylate, composed of hydrophobic octanal-derived acetal and hydrophilic poly(ethylene glycol) moieties, was synthesized with different degrees of hydrophilicity. The polymer hydrophilicity was estimated based on measurements of contact angles with water. Release of octanal was achieved in a biphasic system composed of hexane and an aqueous suspension of the polymers. The acetal moieties of the polymers were gradually hydrolyzed in an acidic solution, releasing octanal continuously for 600 h. The amount of released octanal increased with an increase in the hydrophilicity of the polymer under acidic conditions.

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Authors and Affiliations

  1. Faculty of Education, Graduate Faculty of Interdisciplinary Research, University of Yamanashi, 4-4-37, Takeda, Kofu, Yamanashi, 400-8510, Japan

    Hisatoyo Morinaga

  2. Department of Applied Chemistry, Faculty of Engineering, Kanagawa Institute of Technology, 1030 Shimo-ogino, Atsugi, Kanagawa, 243-0292, Japan

    Hiroshi Morikawa

  3. Molecular Engineering Institute, Kindai University, 11-6 Kayanomori, Iizuka, Fukuoka, 820-8555, Japan

    Takeshi Endo

Authors
  1. Hisatoyo Morinaga
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  2. Hiroshi Morikawa
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  3. Takeshi Endo
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Correspondence to Hisatoyo Morinaga or Takeshi Endo.

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Morinaga, H., Morikawa, H. & Endo, T. Controlled release of fragrance with cross-linked polymers: synthesis and hydrolytic property of cross-linked amphiphilic copolymers bearing octanal-derived acetal moieties. Polym. Bull. 75, 197–207 (2018). https://doi.org/10.1007/s00289-017-2030-2

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  • DOI: https://doi.org/10.1007/s00289-017-2030-2

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