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Copolymerization of propylene with 1-octene catalyzed by MgCl2/TiCl4/diether catalyst
Bi, Fuyong1; He, Aihua2; Li, Huayi3; Hu, Youliang3; He, Zhiyuan1; Han, Charles C.1
2011-08-01
Source PublicationPOLYMER INTERNATIONAL
ISSN0959-8103
Volume60Issue:8Pages:1167-1172
AbstractMgCl2/TiCl4/diether is a fifth-generation Ziegler-Natta catalyst for the commercial polymerization of propylene. The outstanding features of this catalyst are the high activity and high isotacticity for propylene polymerization without using an external electron donor. In this study, we explored the copolymerization of propylene and 1-octene with MgCl2/TiCl4/diether catalyst. It was found that MgCl2/TiCl4/diether catalyst showed higher polymerization activity and led to greater 1-octene content incorporation, compared with a fourth-generation Ziegler-Natta catalyst (MgCl2/TiCl4/diester). With an increase in 1-octene incorporation in polypropylene chains, the melting temperature, glass transition temperature and crystallinity of the copolymers decreased distinctly. The microstructures of the copolymers were characterized using C-13 NMR spectroscopy, and the copolymer compositions and number-average sequence lengths were calculated from the dyad concentration and distribution. This result is very important for the in-reactor polyolefin alloying process, especially for the case of a single catalyst and two-step (or two-reactor) process. (C) 2011 Society of Chemical Industry
KeywordMgcl2/ticl4/diether Polypropylene (Pp) Propylene-1-octene Copolymer Ziegler-natta Polymerization
DOI10.1002/pi.3100
Indexed BySCI
Language英语
WOS IDWOS:000293963300004
PublisherWILEY-BLACKWELL
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/72502
Collection中国科学院化学研究所
Corresponding AuthorHan, Charles C.
Affiliation1.Chinese Acad Sci, Inst Chem, State Key Lab Polymer Phys & Chem, Joint Lab Polymer Sci & Mat, Beijing 100080, Peoples R China
2.Qingdao Univ Sci & Technol, Key Lab Rubber Plast, Shandong Prov Key Lab Rubber Plast, Minist Educ,Sch Polymer Sci & Engn, Qingdao 266042, Peoples R China
3.Chinese Acad Sci, Inst Chem, CAS Key Lab Engn Plast, Joint Lab Polymer Sci & Mat, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Bi, Fuyong,He, Aihua,Li, Huayi,et al. Copolymerization of propylene with 1-octene catalyzed by MgCl2/TiCl4/diether catalyst[J]. POLYMER INTERNATIONAL,2011,60(8):1167-1172.
APA Bi, Fuyong,He, Aihua,Li, Huayi,Hu, Youliang,He, Zhiyuan,&Han, Charles C..(2011).Copolymerization of propylene with 1-octene catalyzed by MgCl2/TiCl4/diether catalyst.POLYMER INTERNATIONAL,60(8),1167-1172.
MLA Bi, Fuyong,et al."Copolymerization of propylene with 1-octene catalyzed by MgCl2/TiCl4/diether catalyst".POLYMER INTERNATIONAL 60.8(2011):1167-1172.
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