| 双功能催化剂体系催化乙烯原位聚合制备长链支化聚乙烯研究 |
| |
| 引用本文： | 柳忠阳,贾明,郭存悦,贺大为,胡友良.双功能催化剂体系催化乙烯原位聚合制备长链支化聚乙烯研究[J].高分子学报,2001,12(6):751-754. |
| |
| 作者姓名： | 柳忠阳 贾明 郭存悦 贺大为 胡友良 |
| |
| 作者单位： | 中国科学院化学研究所分子科学中心, |
| |
| 基金项目： | 国家重点自然科学基金 (基金号 2 973414 1)，SINOPEC联合资助项目 |
| |
| 摘 要： | 以蒙脱土负载 β 二酮二氯化锆作为乙烯齐聚催化剂与Et(Ind) 2 ZrCl2 复合组成了原位双功能聚合催化体系 ,成功地以乙烯为唯一单体唯一反应釜制备长链支化聚乙烯 ,该催化剂体系具有乙烯共聚活性高 ,聚合物物性可调等优点
|
| 关 键 词： | 双功能聚合体系 蒙脱土负载β二酮二氯化锆 |
| 修稿时间： | 2001年1月10日 |
PREPARATION OF LONG-BRANCHING POLYETHYLENE USING A DUAL-FUNCTIONAL CATALYTIC SYSTEM |
| |
| LIU Zhongyang,JIA Ming,GUO Cunyue,HE Dawei,HU Youliang.PREPARATION OF LONG-BRANCHING POLYETHYLENE USING A DUAL-FUNCTIONAL CATALYTIC SYSTEM[J].Acta Polymerica Sinica,2001,12(6):751-754. |
| |
| Authors: | LIU Zhongyang JIA Ming GUO Cunyue HE Dawei HU Youliang |
| |
| Abstract: | Long branching polyethylene was prepared by using a novel dual functional catalytic system with (acac) 2ZrCl 2/Montmorilonite/AlEt 2Cl as the ethylene oligomerization catalyst in which (acac) 2ZrCl 2 was chemically bonded in between the layers of montmorilonite (MMT) and Et(Ind) 2ZrCl 2/MAO as the ethylene copolymerization catalyst capable of incorporating ethylene oligomers,of which over 80 percent were hexene and octene, in situ to form long branching polyethylene.Selectivities for ethylene oligomerization with (acac) 2ZrCl 2 and (acac) 2ZrCl 2/MMT,relationship between (acac) 2ZrCl 2 and (acac) 2ZrCl 2/MMT with reaction time,effects of Al/Zr value on activity of (acac) 2ZrCl 2/MMT and structure of the resulting polymer were investigated.Experimental results showed that the two catalysts in the dual functional catalytic system were well matched and exhibited high copolymerization activity and improved properties of the final long branching polyethylene. |
| |
| Keywords: | Dual functional catalytic system Long branched polyethylene Metallocene |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
