| Judiciously balancing steric and electronic influences on 2,3-diiminobutane-based Pd(II) complexes in nourishing polyethylene properties | |
| Department | OSSO国家重点实验室 |
| Zeng, Yanning1,2; Qaiser Mahmood1,2; Liang, Tongling1; Sun WH(孙文华)1,2,3; Sun WH(孙文华) | |
| 2017 | |
| Source Publication | Journal of Polymer Science Part A: Polymer Chemistry
 |
| ISSN | 0887-624X |
| Volume | 55Issue:19Pages:3214-3222 |
| Abstract |
A new series of palladium complexes (Pd1–Pd5) ligated by symmetrical 2,3-diiminobutane derivatives, 2,3-bis[2,6-bis{bis(4-FC6H4)2CH}2-4-(alkyl)C6H2N]C4H6 (alkyl = Me L1, Et L2, iPr L3, tBu L4) and 2,3-bis[2,6-bis{bis(C6H5)2CH}2-4-{(CH3)3C}C6H2N]C4H6 L5, have been prepared and well characterized, and their catalytic scope toward ethylene polymerization have been investigated. Upon activation with MAO, all palladium complexes (Pd1–Pd5) exhibited good activities (up to 1.44 × 106 g (PE) mol−1(Pd) h−1) and produced higher molecular weight polyethylene in the range of 105 g mol−1 with precise molecular weight distribution (Mw/Mn = 1.37–1.77). One of the long-standing limiting features of the Brookhart type |
| Keyword | Cationic Polymerization Palladium Polyethylene Schiff Base |
| Subject Area | 物理化学与绿色催化 |
| DOI | 10.1002/pola.28663 |
| Funding Organization | National Natural Science Foundation of China (U1362204;21374123);QM is grateful to the CAS-TWAS president’s fellowship |
| Indexed By | SCI |
| If | 2.952 |
| Language | 英语 |
| compositor | 第二作者单位 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/22433 |
| Collection | 羰基合成与选择氧化国家重点实验室（OSSO） |
| Corresponding Author | Sun WH(孙文华) |
| Affiliation | 1.Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China 2.State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China 3.CAS Research/Education Center for Excellence in Molecular Sciences, University of Chinese Academy of Sciences, Beijing 100049, China |
| Recommended Citation GB/T 7714 | Zeng, Yanning,Qaiser Mahmood,Liang, Tongling,et al. Judiciously balancing steric and electronic influences on 2,3-diiminobutane-based Pd(II) complexes in nourishing polyethylene properties[J]. Journal of Polymer Science Part A: Polymer Chemistry,2017,55(19):3214-3222. |
| APA | Zeng, Yanning,Qaiser Mahmood,Liang, Tongling,Sun WH,&孙文华.(2017).Judiciously balancing steric and electronic influences on 2,3-diiminobutane-based Pd(II) complexes in nourishing polyethylene properties.Journal of Polymer Science Part A: Polymer Chemistry,55(19),3214-3222. |
| MLA | Zeng, Yanning,et al."Judiciously balancing steric and electronic influences on 2,3-diiminobutane-based Pd(II) complexes in nourishing polyethylene properties".Journal of Polymer Science Part A: Polymer Chemistry 55.19(2017):3214-3222. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Zeng_et_al-2017-Jour（326KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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-diimine Pd(II) catalysts is that they produce highly branched (ca. 100/1000 C atoms) and totally amorphous polymer. Conversely, herein Pd5 produced polymers having dramatically lower branching number (28/1000) as well as improved melting temperature up to 73.1 °C showing well-controlled linear architecture, and very similar to polyethylene materials generated by early-transition-metal based catalysts.
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