COPOLYMERIZATION OF ETHYLENE AND PROPYLENE BY CATIONIC SCANDIUM ALKYL CATALYST SYSTEM
文献类型：期刊论文
| 作者 | Li, Dan-feng1,2; Li, Shi-hui1; Wu, Chun-ji1; Yao, Chang-guang1,2; Cui, Dong-mei1 |
| 刊名 | ACTA POLYMERICA SINICA
 |
| 出版日期 | 2013-05-20 |
| 期号 | 5页码:649-653 |
| 关键词 | Rare Earth Metal Complex Ethylene Propylene Copolymerization |
| ISSN号 | 1000-3304 |
| DOI | 10.3724/SP.J.1105.2013.12414 |
| 英文摘要 | The scandium dialkyl complex LSc (CH2SiMe3)(2) (L = (2, 6-iPr(2)C(6)H(3))NC(Me)CHPPh2 N-(2, 6-Me2C6H3)) activated with [Ph3C] [B(C6F5)(4)] could initiate ethylene and propylene copolymerization with high activity (7. 5 x 10(5)g(PE) mol(-1) h(-1) (10(5) Pa)(-1)) under the conditions of room temperature (30 degrees C) and atomphere pressure (1. 0 x 10(5) Pa). The influence of comonomer feed content and polymerization temperature on activity and the composition of the copolymers using LSc (CH2SiMe3)(2)/[Ph3C][B(C6F5)(4)] catalytic system were investigated. An increase in the initial propylene feed content leads to the increase in the incorporated propylene content of the resulting copolymer. At 30 degrees C, the highest activity and incorporation of propylene were achieved. Determination of the reactivity ratios shows a much high reactivity for ethylene (r(E) = 29. 75 and r(P) = 0. 015). The resultant copolymers are elastomers having random sequence distibution of the two monomeric units evidenced by C-13-NMR spectroscopy and DSC analyses. |
| 语种 | 英语 |
| WOS记录号 | WOS:000320297300009 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/46759]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Li, Dan-feng |
| 作者单位 | 1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Dan-feng,Li, Shi-hui,Wu, Chun-ji,et al. COPOLYMERIZATION OF ETHYLENE AND PROPYLENE BY CATIONIC SCANDIUM ALKYL CATALYST SYSTEM[J]. ACTA POLYMERICA SINICA,2013(5):649-653. |
| APA | Li, Dan-feng,Li, Shi-hui,Wu, Chun-ji,Yao, Chang-guang,&Cui, Dong-mei.(2013).COPOLYMERIZATION OF ETHYLENE AND PROPYLENE BY CATIONIC SCANDIUM ALKYL CATALYST SYSTEM.ACTA POLYMERICA SINICA(5),649-653. |
| MLA | Li, Dan-feng,et al."COPOLYMERIZATION OF ETHYLENE AND PROPYLENE BY CATIONIC SCANDIUM ALKYL CATALYST SYSTEM".ACTA POLYMERICA SINICA .5(2013):649-653. |
入库方式： OAI收割
来源：化学研究所
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