한국포장학회지 (KOREAN JOURNAL OF PACKAGING SCIENCE & TECHNOLOGY)

  • 제31권1호
  • /
  • Pages.77-82
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  • 2025
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  • 1226-0207(pISSN)
  • /
  • 3058-2024(eISSN)
한국포장학회 (Korea Society of Packaging Science and Technology)
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Bio-based Photopolymer Synthesis: Epoxidized Soybean Oil (ESO) Modified with Itaconic Acid and Vinyl Acetate

  • Shinhee Choi (Department of Packaging, Yonsei University) ;
  • Gunhee Park (Department of Packaging, Yonsei University) ;
  • Nohjin Park (Department of Packaging, Yonsei University) ;
  • Taesung Choi (Department of Packaging, Yonsei University) ;
  • Sangwon Lim (Department of Packaging, Yonsei University) ;
  • Su-il Park (Department of Packaging, Yonsei University)
  • 투고 : 2025.04.02
  • 심사 : 2025.04.13
  • 발행 : 2025.04.30
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초록

This study aimed to synthesize a bio-based UV-curable polymer, itaconated epoxidized soybean oil (IESO), using epoxidized soybean oil (ESO) and itaconic acid (IA) as replacements for acrylic polymers. Vinyl acetate (VAc) was added to improve the polymerization rate, adhesion, and water resistance of IESO. The itaconated epoxidized soybean oil/Vinyl acetate (IESO/VAc) content was adjusted to ratios of 9:1, 7:3, and 5:5, then IESO/VAc coated paper and standalone films were produced using a UV curing system. Fourier transform infrared spectroscopy analysis confirmed a decrease in C=C bond intensity after UV curing, indicating successful radical polymerization. The adhesion test demonstrated stable adhesive performance, and the water contact angle confirmed that the coating exhibits significant hydrophobicity. In the recycling test, all samples dissolved, indicating that IESO/VAc is a bio-based material that can be chemically recycled. Consequently, IESO/VAc blends have the potential to replace fossil-based curable polymer and may be used as coatings for paper packaging.

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참고문헌

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