ICCAS OpenIR
The behavior of homogeneous iron-based catalysts bearing pyridine diimine ligands for ethylene polymerization
Qiu, JM; Sun, LG; Hu, YL; Li, YF
2000-11-01
Source PublicationCHINESE JOURNAL OF POLYMER SCIENCE
ISSN0256-7679
Volume18Issue:6Pages:509-513
AbstractThe polymerization of ethylene by two iron-based catalysts, {[2,6-ArN=C(Me)(2)C5H3N]FeCl2} (Ar = 2,6-C6H3-Me-2 I; 2,6-C6H3 (i-Pr)(2) II) has been investigated. Catalyst II produces higher molecular weight polyethylene (PE) and broadened polydispersities relative to catalyst I under analogous conditions and all polymers are linear. The kinetic profiles with iron catalysts 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 similar to 45 degreesC was observed. The molecular weight of PE decreases with the increase of Al/Fe ratio and rise of polymerization temperature.
KeywordEthylene Polymerization Transition Metal Catalyst
Indexed BySCI
Language英语
WOS IDWOS:000165081000004
PublisherSPRINGER-VERLAG BERLIN
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/76288
Collection中国科学院化学研究所
Corresponding AuthorLi, YF
AffiliationChinese Acad Sci, Inst Chem, Ctr Mol Sci, State Key Lab Engn Plast, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Qiu, JM,Sun, LG,Hu, YL,et al. 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.
APA Qiu, JM,Sun, LG,Hu, YL,&Li, YF.(2000).The behavior of homogeneous iron-based catalysts bearing pyridine diimine ligands for ethylene polymerization.CHINESE JOURNAL OF POLYMER SCIENCE,18(6),509-513.
MLA Qiu, JM,et al."The behavior of homogeneous iron-based catalysts bearing pyridine diimine ligands for ethylene polymerization".CHINESE JOURNAL OF POLYMER SCIENCE 18.6(2000):509-513.
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