ICCAS OpenIR
Effect of diether as internal donor on MgCl2-supported Ziegler-Natta catalyst for propylene polymerization
Cui, NN; Ke, YC; Li, HY; Zhang, ZC; Guo, CY; Lv, ZX; Hu, YL
2006-02-15
Source PublicationJOURNAL OF APPLIED POLYMER SCIENCE
ISSN0021-8995
Volume99Issue:4Pages:1399-1404
AbstractThis article demonstrates the influence of the molar ratio between diether as internal donor and Magnesium dichloride in processing of the catalyst preparation on the catalytic performance for propylene polymerization with MgCl2-supported Ziegler-Natta catalyst. The effect of electron donor on catalyst is investigated. The experimental data find that diether content on catalyst increases and Ti content on catalyst decreases with the increase of diether/Mg molar ratio. This result indicates that diether as internal donor is not coordinated to Ti species but to Mg species on catalyst. The introduction of diether remarkably improves the catalytic activity. The extents of improvement closely connect with diether/Mg molar ratio. The stereospecificity of catalyst intensively depends on the structure of diether as internal donor. The possible model of multi-active sites on heterogeneous Ziegler-Natta catalyst is proposed to explain these phenomena. (c) 2005 Wiley Periodicals, Inc.
KeywordZiegler-natta Catalyst Propylene Polymerization Donor Stereospecificity Active Sites Model
DOI10.1002/app.22624
Indexed BySCI
Language英语
WOS IDWOS:000234441200013
PublisherJOHN WILEY & SONS INC
Citation statistics
Cited Times:25[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/58932
Collection中国科学院化学研究所
Corresponding AuthorHu, YL
Affiliation1.Chinese Acad Sci, Inst Chem, Joint Lab Polymer Sci & Mat, CAS Key Lab Engn Plast, Beijing 100080, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
Recommended Citation
GB/T 7714
Cui, NN,Ke, YC,Li, HY,et al. Effect of diether as internal donor on MgCl2-supported Ziegler-Natta catalyst for propylene polymerization[J]. JOURNAL OF APPLIED POLYMER SCIENCE,2006,99(4):1399-1404.
APA Cui, NN.,Ke, YC.,Li, HY.,Zhang, ZC.,Guo, CY.,...&Hu, YL.(2006).Effect of diether as internal donor on MgCl2-supported Ziegler-Natta catalyst for propylene polymerization.JOURNAL OF APPLIED POLYMER SCIENCE,99(4),1399-1404.
MLA Cui, NN,et al."Effect of diether as internal donor on MgCl2-supported Ziegler-Natta catalyst for propylene polymerization".JOURNAL OF APPLIED POLYMER SCIENCE 99.4(2006):1399-1404.
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