Imino-Indolate Half-Titanocene Chlorides: Synthesis and Their Ethylene (Co-)Polymerization
文献类型：期刊论文
| 作者 | Zuo, Weiwei; Zhang, Min; Sun, Wen-Hua1
|
| 刊名 | JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
 |
| 出版日期 | 2009-01-15 |
| 卷号 | 47期号:2页码:357-372 |
| 关键词 | Copolymerization Metallocene Catalysts Organometallic Catalysts Polyethylene |
| ISSN号 | 0887-624X |
| DOI | 10.1002/pola.23139 |
| 英文摘要 | A series of imino-indolate half-titanocene chlorides, Cp'Ti(L)Cl(2) (C1-C7: Cp' = C(5)H(5), MeC(5)H(4), C(5)Me(5), L = imino-indolate ligand), were synthesized by the reaction of Cp'TiCl(3) with sodium imino-indolates. All complexes were characterized by elemental analysis, (1)H and (13)C NMR spectroscopy. Moreover, the molecular structures of two representative complexes C4 and C6 were confirmed by single crystal X-ray diffraction analysis. On activation with methylaluminoxane (MAO), these complexes showed good catalytic activities for ethylene polymerization (up to 7.68 x 10(6) g/mol(Ti).h) and ethylene/1-hexene copolymerization (up to 8.32 x 10(6) g/mol(Ti).h), producing polyolefins with high molecular weights (for polyethylene up to 1808 kg/mol, and for poly(ethylen-co-1-hexene) up to 3290 kg/mol). Half-titanocenes containing ligands with alkyl substituents showed higher catalytic activities, whereas the half-titanocenes bearing methyl substituents on the cyclopentadienyl groups showed lower productivities, but produced polymers with higher molecular weights. Moreover, the copolymerization of ethylene and methyl 10-undecenoate was demonstrated using the C1/MAO catalytic system. The functionalized polyolefins obtained contained about 1 mol % of methyl 10-undecenoate units and were fully characterized by several techniques such as FT=1R, (1)H NMR, (13)C NMR, DSC, TGA and GPC analyses. (C) 2008 Wiley Periodicals, Inc. J Polym Sci Part A: Polyrn Chera 47: 357-372, 2009 |
| 语种 | 英语 |
| WOS记录号 | WOS:000262326400004 |
| 出版者 | JOHN WILEY & SONS INC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/66825]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Sun, Wen-Hua |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, Key Lab Engn Plast, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zuo, Weiwei,Zhang, Min,Sun, Wen-Hua. Imino-Indolate Half-Titanocene Chlorides: Synthesis and Their Ethylene (Co-)Polymerization[J]. JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY,2009,47(2):357-372. |
| APA | Zuo, Weiwei,Zhang, Min,&Sun, Wen-Hua.(2009).Imino-Indolate Half-Titanocene Chlorides: Synthesis and Their Ethylene (Co-)Polymerization.JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY,47(2),357-372. |
| MLA | Zuo, Weiwei,et al."Imino-Indolate Half-Titanocene Chlorides: Synthesis and Their Ethylene (Co-)Polymerization".JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY 47.2(2009):357-372. |
入库方式： OAI收割
来源：化学研究所
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