| Effect of aging of supported titanium catalyst system on conversion ratio during polymerization of high trans-butadiene-isoprene copolymer |
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| DOI： |
| Key Words: supported titanium catalyst system；high trans-butadiene-isoprene copolymer；butadiene；isoprene；aging |
| Author Name | Affiliation | | DU Kai | Qingdao University of Science and Technology | | PENG Jie | Qingdao University of Science and Technology | | YAO Wei | Qingdao University of Science and Technology | | LI Xu-dong | Qingdao University of Science and Technology | | ZHAO Yong-xian | Qingdao University of Science and Technology | | HUANG Bao-chen | Qingdao University of Science and Technology |
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| Abstract: |
| The effect of the aging mode and condition of the supported TiCl4/MgCl2-Al（i-Bu）3 catalyst system on the conversion ratio during the polymerization of high trans-butadiene(Bd)-isoprene(Ip) copolymer(TBIR) was investigated.The results showed that the aging of catalyst system was beneficial to increase the conversion ratio during polymerization；the conversion ratio of aged ternary catalyst system was greater than that of aged binary catalyst system；and the optimized aging condition of the aged ternary catalyst system was as follows:Ip/Ti mole ratio 20，Al/Ti mole ratio 20，addition order TiCl4→MgCl2→Al（i-Bu）3→Ip，temperature 20 ℃ and time 5～10 min. |
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