学術雑誌論文 Effect of Gamma Ray Irradiation on Friction Property of Poly(vinyl alcohol) Cast-Drying on Freeze-Thawed Hybrid Gel

佐々木, 沙織  ,  小俣, 誠二  ,  村上, 輝夫  ,  長澤, 尚胤  ,  田口, 光正  ,  鈴木, 淳史

4 ( 2 ) 2018-04
内容記述
Poly(vinyl alcohol) (PVA) is a biocompatible polymer with low toxicity. It is possible toprepare physically cross-linked PVA gels having hydrogen bonds without using a cross-linking agent. The newly reported physically cross-linked PVA cast-drying (CD) on freeze-thawed (FT) hybrid gel has an excellent friction property, which is expected to be applied as a candidate material for artificial cartilage. Gamma ray sterilization for clinical applications usually causes additional chemical cross-linking and changes physical properties of gels. In this study, CD on FT hybrid gels were irradiated using gamma rays at a different dose rate and irradiance. The results showed the optimized irradiation conditions for gamma irradiated gels to retain excellent friction characteristics.

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