Supramolecular composites of photo-cured acrylated castor oil and fibers formed by the self-assembly of low molecular weight organic gelators

Authors

  • Mitsuhiro Shibata,

    Corresponding author
    1. Department of Life and Environmental Sciences, Faculty of Engineering, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, Chiba 275-0016, Japan
    • Department of Life and Environmental Sciences, Faculty of Engineering, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, Chiba 275-0016, Japan
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  • Takuya Kakihara,

    1. Department of Life and Environmental Sciences, Faculty of Engineering, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, Chiba 275-0016, Japan
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  • Syotarou Obara

    1. Department of Life and Environmental Sciences, Faculty of Engineering, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, Chiba 275-0016, Japan
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Abstract

A mixture of acrylated castor oil (ACO) with N-carbobenzyloxy-L-isoleucylaminooctadecane (CIA) or (R)-12-hydroxystrearic acid (HSA) containing photo-initiators was heated to 130°C and gradually cooled to room temperature to give bio-based gelatinous material. The photo-curing of the gel generated a crosslinked ACO composite containing CIA or HSA. The optical micrographic and differential scanning calorimetry analyses revealed that a supramolecular fibrous network is formed for photo-cured ACO (cACO)/CIA and that spherulitic crystals are formed for cACO/HSA. The tan δ peak temperatures measured by dynamic mechanical analysis for cACO/CIA and cACO/HSA composites were higher than that of cACO. The flexural strength and modulus of cACO/CIA composites increased with an increase of CIA content, and those values were higher than those of cACO/HSA composites. POLYM. COMPOS., 33:2001–2008, 2012. © 2012 Society of Plastics Engineers

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