Citation: . THE BEHAVIOR OF HOMOGENEOUS IRON-BASED CATALYSTS BEARING PYRIDINE DIIMINE LIGANDS FOR ETHYLENE POLYMERIZATION*[J]. Chinese Journal of Polymer Science, ;2000, 18(6): 509-513. shu

THE BEHAVIOR OF HOMOGENEOUS IRON-BASED CATALYSTS BEARING PYRIDINE DIIMINE LIGANDS FOR ETHYLENE POLYMERIZATION*

Received Date: 6 January 2000

The polymerization of ethylene by two iron-based catalysts, {[2,6-ArN=C(Me)2C5H3N]FeCl2} (Ar=2,6-C6H3-Me21; 2,6-C6Hv3 (i-Pr)v2 Ⅱ) has been investigated. Catalyst Ⅱ produces higher molecular weight polyethylene (PE) and broadenedpolydispersities relative to catalyst Ⅰ under analogous conditions and all polymers are linear. The kinetic profiles with ironcatalysts showed a smooth pattern during both rate build-up and rate lowering, which are different from the metallocene catalysts. The polymerization activity increases with Al/Fe value and an optimum temperature range at 40～50℃ was observed.The molecular weight of PE decreases with the increase of Al/Fe ratio and rise of polymerization temperature.
1. [1]
  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
2. [2]
  Hongdao LI , Shengjian ZHANG , Hongmei DONG . Magnetic relaxation and luminescent behavior in nitronyl nitroxide-based annuluses of rare-earth ions. Chinese Journal of Inorganic Chemistry, 2024, 40(5): 972-978. doi: 10.11862/CJIC.20230411
3. [3]
  Lingling Su , Qunyan Wu , Congzhi Wang , Jianhui Lan , Weiqun Shi . Theoretical design of polyazole based ligands for the separation of Am(Ⅲ)/Eu(Ⅲ). Chinese Chemical Letters, 2024, 35(8): 109402-. doi: 10.1016/j.cclet.2023.109402
4. [4]
  Jun-Ting Mo , Zheng Wang . Achieving tunable long persistent luminescence in metal organic halides based on pyridine solvent. Chinese Chemical Letters, 2024, 35(9): 109360-. doi: 10.1016/j.cclet.2023.109360
5. [5]
  Chaochao Jin , Kai Li , Jiongpei Zhang , Zhihua Wang , Jiajing Tan . N,O-Bidentated difluoroboron complexes based on pyridine-ester enolates: Facile synthesis, post-complexation modification, optical properties, and applications. Chinese Chemical Letters, 2024, 35(9): 109532-. doi: 10.1016/j.cclet.2024.109532
6. [6]
  Maitri Bhattacharjee , Rekha Boruah Smriti , R. N. Dutta Purkayastha , Waldemar Maniukiewicz , Shubhamoy Chowdhury , Debasish Maiti , Tamanna Akhtar . Synthesis, structural characterization, bio-activity, and density functional theory calculation on Cu(Ⅱ) complexes with hydrazone-based Schiff base ligands. Chinese Journal of Inorganic Chemistry, 2024, 40(7): 1409-1422. doi: 10.11862/CJIC.20240007
7. [7]
  Long TANG , Yaxin BIAN , Luyuan CHEN , Xiangyang HOU , Xiao WANG , Jijiang WANG . Syntheses, structures, and properties of three coordination polymers based on 5-ethylpyridine-2,3-dicarboxylic acid and N-containing ligands. Chinese Journal of Inorganic Chemistry, 2024, 40(10): 1975-1985. doi: 10.11862/CJIC.20240180
8. [8]
  Yaxin Sun , Huiyu Li , Shiquan Guo , Congju Li . Metal-based cathode catalysts for electrocatalytic ORR in microbial fuel cells: A review. Chinese Chemical Letters, 2024, 35(5): 109418-. doi: 10.1016/j.cclet.2023.109418
9. [9]
  Yufei Jia , Fei Li , Ke Fan . Surface reconstruction of Cu-based bimetallic catalysts for electrochemical CO2 reduction. Chinese Journal of Structural Chemistry, 2024, 43(3): 100255-100255. doi: 10.1016/j.cjsc.2024.100255
10. [10]
  Zhikang Wu , Guoyong Dai , Qi Li , Zheyu Wei , Shi Ru , Jianda Li , Hongli Jia , Dejin Zang , Mirjana Čolović , Yongge Wei . POV-based molecular catalysts for highly efficient esterification of alcohols with aldehydes as acylating agents. Chinese Chemical Letters, 2024, 35(8): 109061-. doi: 10.1016/j.cclet.2023.109061
11. [11]
  Jiakun Bai , Junhui Jia , Aisen Li . An elastic organic crystal with piezochromic luminescent behavior. Chinese Journal of Structural Chemistry, 2024, 43(6): 100323-100323. doi: 10.1016/j.cjsc.2024.100323
12. [12]
  Yin-Hang Chai , Li-Long Dang . New structural breakthrough and topological transformation of homogeneous metalla[4]catenane compounds. Chinese Journal of Structural Chemistry, 2024, 43(10): 100322-100322. doi: 10.1016/j.cjsc.2024.100322
13. [13]
  Jin Long , Xingqun Zheng , Bin Wang , Chenzhong Wu , Qingmei Wang , Lishan Peng . Improving the electrocatalytic performances of Pt-based catalysts for oxygen reduction reaction via strong interactions with single-CoN₄-rich carbon support. Chinese Chemical Letters, 2024, 35(5): 109354-. doi: 10.1016/j.cclet.2023.109354
14. [14]
  Zhongsen Wang , Lijun Qiu , Yunhua Huang , Meng Zhang , Xi Cai , Fanyu Wang , Yang Lin , Yanbiao Shi , Xiao Liu . Alcohothermal synthesis of sulfidated zero-valent iron for enhanced Cr(Ⅵ) removal. Chinese Chemical Letters, 2024, 35(7): 109195-. doi: 10.1016/j.cclet.2023.109195
15. [15]
  Xianzheng Zhang , Yana Chen , Zhiyong Ye , Huilin Hu , Ling Lei , Feng You , Junlong Yao , Huan Yang , Xueliang Jiang . Magnetic field-assisted microbial corrosion construction iron sulfides incorporated nickel-iron hydroxide towards efficient oxygen evolution. Chinese Journal of Structural Chemistry, 2024, 43(1): 100200-100200. doi: 10.1016/j.cjsc.2023.100200
16. [16]
  Jingqi Xin , Shupeng Han , Meichen Zheng , Chenfeng Xu , Zhongxi Huang , Bin Wang , Changmin Yu , Feifei An , Yu Ren . A nitroreductase-responsive nanoprobe with homogeneous composition and high loading for preoperative non-invasive tumor imaging and intraoperative guidance. Chinese Chemical Letters, 2024, 35(7): 109165-. doi: 10.1016/j.cclet.2023.109165
17. [17]
  Chao LIU , Jiang WU , Zhaolei JIN . Synthesis, crystal structures, and antibacterial activities of two zinc(Ⅱ) complexes bearing 5-phenyl-1H-pyrazole group. Chinese Journal of Inorganic Chemistry, 2024, 40(10): 1986-1994. doi: 10.11862/CJIC.20240153
18. [18]
  Junying Zhang , Ruochen Li , Haihua Wang , Wenbing Kang , Xing-Dong Xu . Photo-induced tunable luminescence from an aggregated amphiphilic ethylene-pyrene derivative in aqueous media. Chinese Chemical Letters, 2024, 35(6): 109216-. doi: 10.1016/j.cclet.2023.109216
19. [19]
  Yan Zou , Yin-Shuang Hu , Deng-Hui Tian , Hong Wu , Xiaoshu Lv , Guangming Jiang , Yu-Xi Huang . Tuning the membrane rejection behavior by surface wettability engineering for an effective water-in-oil emulsion separation. Chinese Chemical Letters, 2024, 35(6): 109090-. doi: 10.1016/j.cclet.2023.109090
20. [20]
  Yuanjiao Liu , Xiaoyang Zhao , Songyao Zhang , Yi Wang , Yutuo Zheng , Xinrui Miao , Wenli Deng . Site-selection and recognition of aromatic carboxylic acid in response to coronene and pyridine derivative. Chinese Chemical Letters, 2024, 35(8): 109404-. doi: 10.1016/j.cclet.2023.109404

Get Citation

PDF

XML

Metrics

PDF Downloads(0)
Abstract views(427)
HTML views(5)

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