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PREPARATION OF EPDM-g-GMA BY MELT GRAFTING AND ITS EFFECTS ON THE BRITTLE TOUGH TRANSITION OF PEN

Li Haidong 1,2 , Cheng Fengmei1, Luo Jing1, Guan Wei1 (1.School of Chemical Enginering, Changchun University of Technology, Changchun 130012, China; 2.Changchun Institute of Chemistry, Chinese Academy of Sciences, Changchun 130022, China)  
GMA grafting EPDM is prepared in Haake rheometer, and the effects of monomer and DCP contents on the grafting ratio are studied. The results show that the grafting ratio increases with increasing DCP content, and it reaches a balanced value when GMA content increases. The brittle tough transition is effected by the temperature and EPDM-g-GMA content, and the brittle tough transition temperature decreases by increasing EPDM-g-GMA content.
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