| Study on reactive PS/EPDM blend |
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| DOI： |
| Key Words: polystyrene；EPDM；aluminum trichloride；Friedel-Crafts alkylation；graft copolymerization |
| Author Name | Affiliation | | XU Jian-ping | Jiangsu Polytechnic Institute | | CHENG Min-lian | Jiangsu Polytechnic Institute | | LI Ying | Jiangsu Polytechnic Institute | | WANG Xun | Jiangsu Polytechnic Institute |
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| Abstract: |
| A polystyrene(PS)/EPDM blend formed in situ by Friedel-Crafts alkylation in melt state was developed.The effects of the type and addition level of Lewis acid and the temperature and time of mixing on the properties of blend were investigated.The results showed that a better EPDM-g-PS was obtained by using aluminum trichloride as catalyst；the formation of EPDM-g-PS copolymer made the melt mass flow rate of PS/EPDM blend and the glass transition temperature of PS phase decrease，the bonding force on the interface between PS and EPDM increase，and thus the properties of blend improve；and a PS/EPDM blend with better comprehensive properties was obtained when PS(60)/EPDM(40)，3 phr aluminum trichloride，140 ℃ mixing temperature and 5 min mixing time were used. |
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