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Polymers 2015, 7(10), 2009-2016; doi:10.3390/polym7101496

Reactivity Comparison of ω-Alkenols and Higher 1-Alkenes in Copolymerization with Propylene Using An Isospecific Zirconocene-MMAO Catalyst

State Key Laboratory for Modification of Chemical Fibers and Polymer Materials,College of Material Science and Engineering, Donghua University, 2999 North Renmin Road,Shanghai 201620, China
Authors to whom correspondence should be addressed.
Academic Editor: Changle Chen
Received: 11 September 2015 / Accepted: 10 October 2015 / Published: 16 October 2015
(This article belongs to the Special Issue Metal-Mediated Polymer Synthesis)
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Copolymerizations of propylene with ω-alkenols (aluminum-protected 5-hexene-1-ol (AH) and 10-undecene-1-ol (AU)) and non-polar analogues (1-hexene and 1-dodecene) were conducted with a rac-[Me2Si(2-Me-4-Ph-Ind)2]ZrCl2 activated by modified methylaluminoxane. The catalytic system showed high activity for each copolymerization, of which value was independent on the comonomer used and decreased with the increase of the comonomer concentration. The comonomer content of the copolymers obtained also decreased with the increase of the comonomer concentration in each copolymer. The evaluation of the monomer reactivity ratios indicates a preference for the propylene insertion regardless of the last inserted monomer unit in growing polymer chain in all the copolymerizations. The relative reactivity of ω-alkenols was however significantly lower than that of non-polar analogues. These results suggested that the aluminum protection of polar monomer do not affect the activity of copolymerization but significantly decrease the comonomer reactivity. View Full-Text
Keywords: metallocene; propylene; ω-alkenol; copolymerization; reactivity metallocene; propylene; ω-alkenol; copolymerization; reactivity

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Nyangoye, B.O.; Li, T.; Chen , L.; Cai, Z. Reactivity Comparison of ω-Alkenols and Higher 1-Alkenes in Copolymerization with Propylene Using An Isospecific Zirconocene-MMAO Catalyst. Polymers 2015, 7, 2009-2016.

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