Efficient terpolymerization of ethylene and styrene with α‐olefins by aryloxo‐modified half‐titanocene‐based catalysts and cocatalyst systems. Issue 12 (13th March 2013)

• Record Type: Journal Article
• Authors: Apisuk, Wannida; Suzuki, Naohiro; Kim, Hyun Joon; Kim, Dong Hyun; Kitiyanan, Boonyarach; Nomura, Kotohiro
• Is Part Of: Journal of polymer science. Volume 51:Issue 12(2013:Jun.)
• Page Start: 2565
• Page End: 2574
• Publication Date: 2013-03-13
• Subjects: 547
• DOI: 10.1002/pola.26637
• Languages: English
• ISSNs: 0887-624X

Abstract

<abstract abstract-type="main"> <title>ABSTRACT</title> <p>Aryloxo‐modified half‐titanocenes, Cp′TiCl₂(<italic>O</italic>‐2, 6‐<italic>ⁱ</italic>Pr₂C₆H₃) [Cp′ = Cp* (<bold>1</bold>), <italic>^t</italic>BuC₅H₄ (<bold>2</bold>)], catalyze terpolymerization of ethylene and styrene with α‐olefin (1‐hexene and 1‐decene) efficiently in the presence of cocatalyst, affording high‐molecular‐weight polymers with unimodal distributions (compositions). Efficient comonomer incorporations have been achieved by these catalysts. The content of each comonomer (α‐olefin, styrene, etc.) could be controlled by varying the comonomer concentration charged, and resonances ascribed to styrene and α‐olefin repeated insertion were negligible. The terpolymerization with <italic>p</italic>‐methylstyrene (<italic>p</italic>‐MS) in place of styrene also proceeded in the presence of [PhN(H)Me₂][B(C₆F₅)₄] and Al<italic>ⁱ</italic>Bu₃ cocatalyst, and <italic>p</italic>‐MS was incorporated in an efficient matter, affording high‐molecular‐weight polymers with uniform molecular weight distributions. © 2013 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2013, 51, 2565–2574</p> </abstract>