STUDIES ON η5-PENTAMETHYLCYCLOPENTADIENYLTRIBENZYLOXY TITANIUM AND METHYLALUMINOXANE CATALYST FOR SYNTHESIS OF STYRENE ETHYLENE COPOLYMER AND ITS CHARACTERIZATION
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Research Article|更新时间:2021-03-19
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STUDIES ON η5-PENTAMETHYLCYCLOPENTADIENYLTRIBENZYLOXY TITANIUM AND METHYLALUMINOXANE CATALYST FOR SYNTHESIS OF STYRENE ETHYLENE COPOLYMER AND ITS CHARACTERIZATION
Acta Polymerica SinicaIssue 1, Pages: 74-78(2000)
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Published:20 February 2000,
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FANG Yutang, ZHU Fangming, LIN Shangan. STUDIES ON η5-PENTAMETHYLCYCLOPENTADIENYLTRIBENZYLOXY TITANIUM AND METHYLALUMINOXANE CATALYST FOR SYNTHESIS OF STYRENE ETHYLENE COPOLYMER AND ITS CHARACTERIZATION. [J]. Acta Polymerica Sinica (1):74-78(2000)
DOI:
FANG Yutang, ZHU Fangming, LIN Shangan. STUDIES ON η5-PENTAMETHYLCYCLOPENTADIENYLTRIBENZYLOXY TITANIUM AND METHYLALUMINOXANE CATALYST FOR SYNTHESIS OF STYRENE ETHYLENE COPOLYMER AND ITS CHARACTERIZATION. [J]. Acta Polymerica Sinica (1):74-78(2000)DOI:
STUDIES ON η5-PENTAMETHYLCYCLOPENTADIENYLTRIBENZYLOXY TITANIUM AND METHYLALUMINOXANE CATALYST FOR SYNTHESIS OF STYRENE ETHYLENE COPOLYMER AND ITS CHARACTERIZATION
The copolymerization of styrene and ethylene was carried out using a novel catalytic system of η5-pentamethylcyclopentadienyltribenzyloxy titanuim [Cp*Ti(OBz)3] and methylaluminoxane(MAO). The optimum copolymerization conditions
including copolymerization temperature(T)
time(t)
Al/Ti molar ratio and Cp*Ti(OBz)3 concentration([Ti]) were investigated. The copolymerization products were fractionated by successive solvents extraction with boiling butanone and THF. The copolymers
chiefly existed in THF soluble fractions
were isolated and characterized by 13C-NMR
DSC
WAXD and DMA methods. They are confirmed to be an elastoplastic and amorphous random copolymer [poly(S-co-E)] with a single glass transition temperature (Tg=44.06℃) and a viscoelastic behavior.
SELECTIVE CATALYTIC HYDROGENATION OF SBS BLOCK COPOLYMER WITH METALLOCENE CATALYST ACCELERATED BY METHYL BENZOATE
SYNTHESIS OF ORGANIC-INORGANIC HYBRID SUPPORTED ZIRCONOCENE CATALYST AND ITS CATALYSIS ON ETHYLENE POLYMERIZATION
PREPARATION OF ATACTIC POLYPROPYLENE ELASTOMERS WITH A Cp*TiCl2N[Si(CH3)3]2/MAO CATALYST
STUDIES ON SYNDIOTACTIC POLYSTYRENE-b-POLYETHYLENE BLOCK COPOLYMER CATALYZED BY A NOVEL TITANOCENE CATALYST Ⅰ.SYNTHESIS OF PE-b-sPS BLOCK COPOLYMER
STUDIES ON SYNDIOTACTIC POLYSTYRENE-b-POLYETHYLENE BLOCK COPOLYMER CATALYZED BY A NOVEL TITANOCENE CATALYST Ⅱ. FRACTIONATION AND CHARACTERIZATION OF PE-b-sPS BLOCK COPOLYMER