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STUDIES ON AMINOSILANE COMPOUNDS AS EXTERNAL ELECTRON DONORS IN 1-BUTENE POLYMERIZATION
Ren Hegang1; Yang Min1; Li Huayi2; Liu Pange1; Liu Binyuan1; Hu Youliang2; Wang Yanji3
2011-12-20
Source PublicationACTA POLYMERICA SINICA
ISSN1000-3304
Issue12Pages:1412-1418
AbstractFour aminosilane compounds as external electron donors were synthesized and employed for 1-butene polymerization with MgCl(2) supported Ziegler-Natta catalyst. The four aminosilane compounds are di (piperidinyl) dimethoxysilane (DPPDMS), di (piperidinyl) diethoxysilane (DPPDES), di (pyrrolidinyl) dimethoxysilane (DPRDMS) and di (pyrrolidinyl) diethoxysilane (DPRDES). The effects of the structure of different external donors on the catalytic efficiency, isotacticity, melting temperature and molecular weight distribution of resulted poly(1-butene) were investigated in detail. Poly(1-butene) s have been characterized by using gel permeation chromatography (GPC) and differential scanning calorimetry (DSC) analysis. The results indicated that the aminosilane compounds possessing dimethoxy groups showed higher catalytic efficiency and isospecificity of polymers than those of compounds having diethoxy groups, whereas the aminosilane compounds containing diethoxy groups were benefit for obtaining broader molecular weight distribution polymers than those of compounds possessing dimethoxy groups. Furthermore, compared with DPPDMS or TEOS as external donor,DPPDMS/TEOS compound as complex external donor at a proper molar ratio not only increased the catalytic efficiency and isotacticity of polymers obtained, but also broadened the molecular weight distribution of the polymer. Moreover, the effects of different amount of hydrogen and concentration of external donor and cocatalyst on catalytic efficiency and isotacticity of polymers obtained were also studied.
KeywordZiegler-natta Catalyst External Donors Aminosilane Compounds Poly(1-butene)
DOI10.3724/SP.J.1105.2011.10367
Indexed BySCI
Language英语
WOS IDWOS:000299018300008
PublisherSCIENCE PRESS
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/72728
Collection中国科学院化学研究所
Corresponding AuthorRen Hegang
Affiliation1.Hebei Univ Technol, Sch Chem Engn & Technol, Inst Polymer Sci & Engn, Tianjin 300130, Peoples R China
2.Chinese Acad Sci, Inst Chem, Key Lab Engn Plast, Joint Lab Polymer Sci & Mat, Beijing 100190, Peoples R China
3.Hebei Univ Technol, Sch Chem Engn & Technol, Inst Green Chem Technol, Tianjin 300130, Peoples R China
Recommended Citation
GB/T 7714
Ren Hegang,Yang Min,Li Huayi,et al. STUDIES ON AMINOSILANE COMPOUNDS AS EXTERNAL ELECTRON DONORS IN 1-BUTENE POLYMERIZATION[J]. ACTA POLYMERICA SINICA,2011(12):1412-1418.
APA Ren Hegang.,Yang Min.,Li Huayi.,Liu Pange.,Liu Binyuan.,...&Wang Yanji.(2011).STUDIES ON AMINOSILANE COMPOUNDS AS EXTERNAL ELECTRON DONORS IN 1-BUTENE POLYMERIZATION.ACTA POLYMERICA SINICA(12),1412-1418.
MLA Ren Hegang,et al."STUDIES ON AMINOSILANE COMPOUNDS AS EXTERNAL ELECTRON DONORS IN 1-BUTENE POLYMERIZATION".ACTA POLYMERICA SINICA .12(2011):1412-1418.
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