| Autor: |
西井圭, 早野重孝, 角替靖男, 中山祐正, 塩野毅 |
| Zdroj: |
Kobunshi Ronbunshu; 2018, Vol. 75 Issue 6, p564-569, 6p |
| Abstrakt: |
SiMe2(η'-C13H8)(η'- BuN)TiMe2(thf)(1 ;C13H8 = fluorenyl,thf = tetrahydrofuran) was synthesized and characterized by 1H ,13C, DEPT NMR, and single crystal X-ray analysis. The catalyst system composed of the complex 1 and modified methylaluminoxane (MMAO) exhibits the characteristics of a quasi-living polymerization of 1-hexene in toluene at -30°C, producing a syndiotactic-nch polymer with a relatively narrow molecular weight distribution (Mw/Mn = 1.36). Moreover, this catalyst system is also capable of promoting the quasi-living copolymerization of 1- hexene with norbomene at room temperature, yielding random copolymers with narrow molecular weight distributions. The quasi-living nature of the catalyst allows the synthesis o f syndiotactic-hch poly(l-hexene)-6/oc^-poly(l-hexene-ra«-norbomene) diblock copolymers. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Supplemental Index |
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