Journal of Radiation Industry (방사선산업학회지)

Korean Society of Radiation Industry (한국방사선산업학회)
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Preparation and Characterization of Poly(vinyl alcohol)/Poly(acrylic acid) Hydrogel by Radiation

방사선을 이용하여 제조한 poly(vinyl alcohol)/poly(acrylic acid) 하이드로젤의 제조 및 특성

  • Park, Jong-Seok (Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute) ;
  • Kim, Hyun-A (Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute) ;
  • Choi, Jong-Bae (Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute) ;
  • Gwon, Hui-Jeong (Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute) ;
  • Lim, Youn-Mook (Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute) ;
  • Nho, Young-Chang (Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute)
  • 박종석 (한국원자력연구원 첨단방사선연구소) ;
  • 김현아 (한국원자력연구원 첨단방사선연구소) ;
  • 최종배 (한국원자력연구원 첨단방사선연구소) ;
  • 권희정 (한국원자력연구원 첨단방사선연구소) ;
  • 임윤묵 (한국원자력연구원 첨단방사선연구소) ;
  • 노영창 (한국원자력연구원 첨단방사선연구소)
  • Received : 2011.11.11
  • Accepted : 2011.12.09
  • Published : 2011.12.30

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Abstract

Poly(vinyl alcohol) (PVA) is an interesting material with good biocompatibility, high elasticity and hydrophilic chacrateristics. In this study, crosslinked hydrogels based on PVA, and poly(acrylic acid) (PAAc) were prepared by gamma-ray irradiation. PVA and PAAc powders were dissolved in deionized water, and then irradiated by a gamma-ray with a radiation dose of 50 kGy to make hydrogels. The hydrogels were then annealed in an oven at $120^{\circ}C$ for 10 min, 30 min and 50 min under nitrogen atmosphere. The properties of a hydrogel such as gel fraction, swelling behavior, thermogravimetric analysis (TGA) and adhesive strength as a function of PAAc content and annealing time were investigated. The gel fraction decreases with decreasing PAAc content and increasing annealing time. The thermal behaviors have shown different patterns according to the annealing time. The adhesive strength increases with increasing PAAc content.

Keywords

Acknowledgement

Supported by : 한국연구재단