We have synthesized a novel benzoxazine monomer and polybenzoxazine thermosetting resin based on urushiol, a natural product. Fourier transform infrared (FTIR) spectroscopy and differential scanning calorimetry (DSC) studies demonstrate that the thermally activated ring opening polymerization of the benzoxazine occurs at around 210 degrees C without addition of catalyst. Thermal gravimetric analysis (TGA) measurements show the temperatures corresponding to 5% and 10% weight loss are 325 degrees C and 357 degrees C, respectively, with a char yield of 22% at 600 degrees C. Dynamic mechanical analysis (DMA) studies indicate the urushiol-based polybenzoxazine exhibits excellent toughness with a storage modulus (G') of 606 MPa at room temperature and an elongation at break of 17.4%.
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Toyohashi Univ Technol, Dept Mat Sci, Tempaku, Toyohashi 4418580, JapanToyohashi Univ Technol, Dept Mat Sci, Tempaku, Toyohashi 4418580, Japan
Ardhyananta, Hosta
Kawauchi, Takehiro
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Toyohashi Univ Technol, Dept Mat Sci, Tempaku, Toyohashi 4418580, JapanToyohashi Univ Technol, Dept Mat Sci, Tempaku, Toyohashi 4418580, Japan
Kawauchi, Takehiro
Ismail, Hanafi
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Univ Sains Malaysia, Sch Mat & Mineral Resources Engn, Nibong Tebal 14300, Pulau Pinang, MalaysiaToyohashi Univ Technol, Dept Mat Sci, Tempaku, Toyohashi 4418580, Japan
Ismail, Hanafi
Takeichi, Tsutomu
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Toyohashi Univ Technol, Dept Mat Sci, Tempaku, Toyohashi 4418580, JapanToyohashi Univ Technol, Dept Mat Sci, Tempaku, Toyohashi 4418580, Japan
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Toyohashi Univ Technol, Dept Mat Sci, Tempaku, Toyohashi 4418580, JapanToyohashi Univ Technol, Dept Mat Sci, Tempaku, Toyohashi 4418580, Japan
Ardhyananta, Hosta
Kawauchi, Takehiro
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机构:
Toyohashi Univ Technol, Dept Mat Sci, Tempaku, Toyohashi 4418580, JapanToyohashi Univ Technol, Dept Mat Sci, Tempaku, Toyohashi 4418580, Japan
Kawauchi, Takehiro
Ismail, Hanafi
论文数: 0引用数: 0
h-index: 0
机构:
Univ Sains Malaysia, Sch Mat & Mineral Resources Engn, Nibong Tebal 14300, Pulau Pinang, MalaysiaToyohashi Univ Technol, Dept Mat Sci, Tempaku, Toyohashi 4418580, Japan
Ismail, Hanafi
Takeichi, Tsutomu
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h-index: 0
机构:
Toyohashi Univ Technol, Dept Mat Sci, Tempaku, Toyohashi 4418580, JapanToyohashi Univ Technol, Dept Mat Sci, Tempaku, Toyohashi 4418580, Japan