Citation: Feng Liu, Hai-ying Tan, Tao Tang. SYNTHESIS AND CHARACTERIZATION OF FLUORO-SUBSTITUTED -ENAMINOKETONATO TITANIUM COMPLEXES AND THEIR CATALYTIC BEHAVIOR OF REGIOSELECTIVE ETHYLENE/CYCLOPENTADIENE COPOLYMERIZATION[J]. Chinese Journal of Polymer Science, ;2013, 31(4): 574-582. doi: 10.1007/s10118-013-1249-0 shu

SYNTHESIS AND CHARACTERIZATION OF FLUORO-SUBSTITUTED -ENAMINOKETONATO TITANIUM COMPLEXES AND THEIR CATALYTIC BEHAVIOR OF REGIOSELECTIVE ETHYLENE/CYCLOPENTADIENE COPOLYMERIZATION

Received Date: 29 October 2012
Revised Date: 24 December 2012

Fund Project: This work was financially supported by the National Natural Science Foundation of China (No. 21234006).

The ethylene/cyclopentadiene (CPD) copolymerization behavior by using fluoro-substituted bis(-enaminoketonato) titanium complexes [FC6H4NC(CH3)CHCO(CF3)]2TiCl2(1a-1c) has been investigated in detail. Upon utilizing MMAO as a cocatalyst, complexes 1a-1c exhibit high catalytic activities, affording the copolymers with high molecular weight and unimodal molecular weight distribution. Compared with non-substituted complex [C6H5NC(CH3)CHCO(CF3)]2TiCl2(1), complexes 1a-1c can produce the copolymers with CPD incorporation adjusted in a wide range due to the enhancement of electrophilicity of metal center caused by introducing electron-withdrawing groups. Especially complex 1c bearing fluorine at the para-position of N-aryl moiety provides the highest CPD incorporation, which is nearly two times (18.5 mol%) higher than the non-substituted complex 1(8.9 mol%) under the same conditions. The highest CPD incorporation up to 24.6 mol% can be easily achieved using this complex. 1H- and 13C-NMR spectra demonstrate that these fluoro-substituted complexes possess regioselective nature with exclusive 1,2-insertion fashion, and alternating ethylene-CPD sequence can be detected at high CPD incorporation.
- Ziegler-Natta polymerization,
- Titanium catalyst,
- Cyclopentadiene copolymer
1. [1]
1. [1]
  Feng Cui , Fangman Chen , Xiaochun Xie , Chenyang Guo , Kai Xiao , Ziping Wu , Yinglu Chen , Junna Lu , Feixia Ruan , Chuanxu Cheng , Chao Yang , Dan Shao . Scalable production of mesoporous titanium nanoparticles through sequential flash nanocomplexation. Chinese Chemical Letters, 2024, 35(4): 108681-. doi: 10.1016/j.cclet.2023.108681
2. [2]
  Haijing Cui , Weihao Zhu , Chuning Yue , Ming Yang , Wenzhi Ren , Aiguo Wu . Recent progress of ultrasound-responsive titanium dioxide sonosensitizers in cancer treatment. Chinese Chemical Letters, 2024, 35(10): 109727-. doi: 10.1016/j.cclet.2024.109727
3. [3]
  Qian Wang , Ting Gao , Xiwen Lu , Hangchao Wang , Minggui Xu , Longtao Ren , Zheng Chang , Wen Liu . Nanophase separated, grafted alternate copolymer styrene-maleic anhydride as an efficient room temperature solid state lithium ion conductor. Chinese Chemical Letters, 2024, 35(7): 108887-. doi: 10.1016/j.cclet.2023.108887
4. [4]
  Wen LUO , Lin JIN , Palanisamy Kannan , Jinle HOU , Peng HUO , Jinzhong YAO , Peng WANG . Preparation of high-performance supercapacitor based on bimetallic high nuclearity titanium-oxo-cluster based electrodes. Chinese Journal of Inorganic Chemistry, 2024, 40(4): 782-790. doi: 10.11862/CJIC.20230418
5. [5]
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6. [6]
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7. [7]
  Shuang Li , Jiayu Sun , Guocheng Liu , Shuo Zhang , Zhong Zhang , Xiuli Wang . A new Keggin-type polyoxometallate-based bifunctional catalyst for trace detection and pH-universal photodegradation of phenol. Chinese Chemical Letters, 2024, 35(8): 109148-. doi: 10.1016/j.cclet.2023.109148
8. [8]
  Yatian Deng , Dao Wang , Jinglan Cheng , Yunkun Zhao , Zongbao Li , Chunyan Zang , Jian Li , Lichao Jia . A new popular transition metal-based catalyst: SmMn₂O₅ mullite-type oxide. Chinese Chemical Letters, 2024, 35(8): 109141-. doi: 10.1016/j.cclet.2023.109141
9. [9]
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10. [10]
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11. [11]
  Hailong He , Wenbing Wang , Wenmin Pang , Chen Zou , Dan Peng . Double stimulus-responsive palladium catalysts for ethylene polymerization and copolymerization. Chinese Chemical Letters, 2024, 35(7): 109534-. doi: 10.1016/j.cclet.2024.109534
12. [12]
  Peng Wang , Daijie Deng , Suqin Wu , Li Xu . Cobalt-based deep eutectic solvent modified nitrogen-doped carbon catalyst for boosting oxygen reduction reaction in zinc-air batteries. Chinese Journal of Structural Chemistry, 2024, 43(1): 100199-100199. doi: 10.1016/j.cjsc.2023.100199
13. [13]
  Linhui Liu , Wuwan Xiong , Mingli Fu , Junliang Wu , Zhenguo Li , Daiqi Ye , Peirong Chen . Efficient NO_x abatement by passive adsorption over a Pd-SAPO-34 catalyst prepared by solid-state ion exchange. Chinese Chemical Letters, 2024, 35(4): 108870-. doi: 10.1016/j.cclet.2023.108870
14. [14]
  Weichen Zhu , Wei Zuo , Pu Wang , Wei Zhan , Jun Zhang , Lipin Li , Yu Tian , Hong Qi , Rui Huang . Fe-N-C heterogeneous Fenton-like catalyst for the degradation of tetracycline: Fe-N coordination and mechanism studies. Chinese Chemical Letters, 2024, 35(9): 109341-. doi: 10.1016/j.cclet.2023.109341
15. [15]
  Haodong Wang , Xiaoxu Lai , Chi Chen , Pei Shi , Houzhao Wan , Hao Wang , Xingguang Chen , Dan Sun . Novel 2D bifunctional layered rare-earth hydroxides@GO catalyst as a functional interlayer for improved liquid-solid conversion of polysulfides in lithium-sulfur batteries. Chinese Chemical Letters, 2024, 35(5): 108473-. doi: 10.1016/j.cclet.2023.108473
16. [16]
  Shuo Li , Xinran Liu , Yongjie Zheng , Jun Ma , Shijie You , Heshan Zheng . Effective peroxydisulfate activation by CQDs-MnFe₂O₄@ZIF-8 catalyst for complementary degradation of bisphenol A by free radicals and non-radical pathways. Chinese Chemical Letters, 2024, 35(5): 108971-. doi: 10.1016/j.cclet.2023.108971
17. [17]
  Xunzhang Fan , Yuanjin Zhao , Shufang Luo , Aihua He . Karl Ziegler: A Pioneer in the Polyolefin Industry – Commemorating the 50th Anniversary of the German Chemist’s Passing. University Chemistry, 2024, 39(8): 389-394. doi: 10.3866/PKU.DXHX202312065
18. [18]
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19. [19]
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