期刊Effect of electron beam irradiation sterilization on the biomedical poly (octene-co-ethylene)-polypropylene films.pdfVIP

Nuclear Instruments and Methods in Physics Research B 268 (2010) 1474–1477 Contents lists available at ScienceDirect Nuclear Instruments and Methods in Physics Research B journal homepage: www.else /locate/nimb Effect of electron beam irradiation sterilization on the biomedical poly (octene-co-ethylene)/polypropylene films Shifang Luan a, Hengchong Shi a,c, Zhanhai Yao a, Jianwei Wang b, Yongxian Song a, Jinghua Yin a,* a State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China b Shandong Weigao Group Medical Polymer Co., Ltd., Weihai 264209, PR China c Graduate University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing 100039, PR China a r t i c l e i n f o a b s t r a c t Article history: The effect of electron beam irradiation with the dose ranging from 15 to 40 kGy on poly (octene-co-eth- Received 18 September 2009 ylene) (POE)/polypropylene (PP) films was investigated. Wide angle X-ray diffraction (WAXD), differen- Received in revised form 8 January 2010 tial scanning calorimetry (DSC), Fourier transform infrared spectroscopy (FTIR), yellowness index testing Available online 20 January 2010 and mechanical performance measurement were applied to characterize the films. It demonstrated that crystalline structure exhibited little change, and degree of crystallinity slightly change under the irradi- Keywords: ation treatment. Irradiation brought about oxidation of the films, forming hydroxyl gro