Copolymerization of Ethylene with Isoprene Promoted by Titanium Complexes Containing a Tetradentate [OSSO]-Type Bis(phenolato) Ligand

被引：29
|
作者：
Capacchione, Carmine [1 ]
Saviello, Daniela
Avagliano, Antonietta
Proto, Antonio
机构：
[1] Univ Salerno, Dipartimento Chim, Res Ctr NANOMAt & NanoTEchnol, I-84084 Salerno, Italy
来源：
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY | 2010年 / 48卷 / 19期
关键词：
copolymerization; stereospecific polymers; Ziegler-Natta polymerization; ISOSPECIFIC STYRENE POLYMERIZATION; CONJUGATED DIENES; 1,3-DIENE POLYMERIZATION; NEODYMOCENE CATALYST; BUTADIENE; METALLOCENE; PRECURSORS; REACTIVITY; CHAIN; UNITS;
D O I：
10.1002/pola.24204
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Copolymerization of ethylene with isoprene (IP) catalyzed by 1,4-dithabutanediyl-linked bis(phenolato) titanium complexes 1 and 2 and methylaluminoxane (MAO) produced exclusively ethylene-IP copolymers with good activity. The copolymer microstructure can be varied by changing the ratio between the monomers in the copolymerization feed, affording copolymers with IP content similar to 60%. The copolymer microstructure was fully elucidated by (13)C-NMR spectroscopy of the copolymers with various IP content revealing a strong tendency to the alternating microstructure. (c) 2010 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 48: 4200-4206, 2010
引用
收藏
页码：4200 / 4206
页数：7
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