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]
  Yiwen Lin , Yijie Chen , Chunhui Deng , Nianrong Sun . Integration of resol/block-copolymer carbonization and machine learning: A convenient approach for precise monitoring of glycan-associated disorders. Chinese Chemical Letters, 2024, 35(12): 109813-. doi: 10.1016/j.cclet.2024.109813
4. [4]
  Changlin Su , Wensheng Cai , Xueguang Shao . Water as a probe for the temperature-induced self-assembly transition of an amphiphilic copolymer. Chinese Chemical Letters, 2025, 36(4): 110095-. doi: 10.1016/j.cclet.2024.110095
5. [5]
  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
6. [6]
  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
7. [7]
  Bingke Zhang , Dongbo Wang , Jiamu Cao , Wen He , Gang Liu , Donghao Liu , Chenchen Zhao , Jingwen Pan , Sihang Liu , Weifeng Zhang , Xuan Fang , Liancheng Zhao , Jinzhong Wang . Tuning Stark effect by defect engineering on black titanium dioxide mesoporous spheres for enhanced hydrogen evolution. Chinese Chemical Letters, 2024, 35(11): 110254-. doi: 10.1016/j.cclet.2024.110254
8. [8]
  Chu Wu , Zhichao Dong , Jinfang Hou , Jian Peng , Shuangyu Wu , Xiaofang Wang , Xiangwei Kong , Yue Jiang . Application of titanium-based advanced oxidation processes in pesticide-contaminated water purification: Emerging opportunities and challenges. Chinese Chemical Letters, 2025, 36(3): 110438-. doi: 10.1016/j.cclet.2024.110438
9. [9]
  Hong Yin , Zhipeng Yu . Hexavalent iridium catalyst enhances efficiency of hydrogen production. Chinese Journal of Structural Chemistry, 2025, 44(1): 100382-100382. doi: 10.1016/j.cjsc.2024.100382
10. [10]
  Ke Zhang , Yajing Wei , Linhua Xie , Sha Kang , Fei Li , Chuanyi Wang . Amorphous titanium carbide on N-defective g-C₃N₅ for high-efficiency photocatalytic NO removal. Chinese Chemical Letters, 2025, 36(3): 110086-. doi: 10.1016/j.cclet.2024.110086
11. [11]
  Qijun Tang , Wenguang Tu , Yong Zhou , Zhigang Zou . High efficiency and selectivity catalyst for photocatalytic oxidative coupling of methane. Chinese Journal of Structural Chemistry, 2023, 42(12): 100170-100170. doi: 10.1016/j.cjsc.2023.100170
12. [12]
  Zimo Peng , Quan Zhang , Gaocan Qi , Hao Zhang , Qian Liu , Guangzhi Hu , Jun Luo , Xijun Liu . Nanostructured Pt@RuOx catalyst for boosting overall acidic seawater splitting. Chinese Journal of Structural Chemistry, 2024, 43(1): 100191-100191. doi: 10.1016/j.cjsc.2023.100191
13. [13]
  Yizhe Chen , Yuzhou Jiao , Liangyu Sun , Cheng Yuan , Qian Shen , Peng Li , Shiming Zhang , Jiujun Zhang . Nonmetallic phosphorus alloying to regulate the oxygen reduction mechanisms of platinum catalyst. Chinese Chemical Letters, 2025, 36(4): 110789-. doi: 10.1016/j.cclet.2024.110789
14. [14]
  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
15. [15]
  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
16. [16]
  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
17. [17]
  Baokang Geng , Xiang Chu , Li Liu , Lingling Zhang , Shuaishuai Zhang , Xiao Wang , Shuyan Song , Hongjie Zhang . High-efficiency PdNi single-atom alloy catalyst toward cross-coupling reaction. Chinese Chemical Letters, 2024, 35(7): 108924-. doi: 10.1016/j.cclet.2023.108924
18. [18]
  Yanling Yang , Zhenfa Ding , Huimin Wang , Jianhui Li , Yanping Zheng , Hongquan Guo , Li Zhang , Bing Yang , Qingqing Gu , Haifeng Xiong , Yifei Sun . Dynamic tracking of exsolved PdPt alloy/perovskite catalyst for efficient lean methane oxidation. Chinese Chemical Letters, 2024, 35(4): 108585-. doi: 10.1016/j.cclet.2023.108585
19. [19]
  Hao WANG , Kun TANG , Jiangyang SHAO , Kezhi WANG , Yuwu ZHONG . Electro-copolymerized film of ruthenium catalyst and redox mediator for electrocatalytic water oxidation. Chinese Journal of Inorganic Chemistry, 2024, 40(11): 2193-2202. doi: 10.11862/CJIC.20240176
20. [20]
  Kexin Yin , Jingren Yang , Yanwei Li , Qian Li , Xing Xu . Metal-free diatomaceous carbon-based catalyst for ultrafast and anti-interference Fenton-like oxidation. Chinese Chemical Letters, 2024, 35(12): 109847-. doi: 10.1016/j.cclet.2024.109847

Get Citation

PDF

XML

Metrics

PDF Downloads(0)
Abstract views(750)
HTML views(31)

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Address：Zhongguancun North First Street 2,100190 Beijing, PR China Tel: +86-010-82449177-888

DownLoad: Full-Size Img PowerPoint

Return