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Synthesis of Polypropylene via Catalytic Deoxygenation of Poly(methyl acrylate)

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Title
Synthesis of Polypropylene via Catalytic Deoxygenation of Poly(methyl acrylate)
Author(s)
Choongseop Jeon; Dong Wook Kim; Sukbok Chang; Jeung Gon Kim; Myungeun Seo
Publication Date
2019-09
Journal
ACS MACRO LETTERS, v.8, no.9, pp.1172 - 1178
Publisher
AMER CHEMICAL SOC
Abstract
We propose the defunctionalization of vinyl polymers as a strategy to access previously inaccessible polyolefin materials. By utilizing B(C6F5)(3)-catalyzed deoxygenation in the presence of silane, we demonstrate that eliminating the pendent ester in poly(methyl acrylate) effectively leaves a linear hydrocarbon polymer with methyl pendants, which is polypropylene. We further show that a polypropylene-b-polystyrene diblock copolymer and a polystyrene-b-polypropylene-b-polystyrene triblock copolymer can be successfully derived from the poly(methyl acrylate)-containing block polymer precursors and exhibit quite distinct materials properties due to their chemical transformation. This unique postpolymerization modification methodology, which goes beyond the typical functional group conversion, can offer access to a diverse range of unprecedented polyolefin block polymers with a variable degree of functional groups. © 2019 American Chemical Society
URI
https://pr.ibs.re.kr/handle/8788114/6429
ISSN
2161-1653
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Center for Catalytic Hydrocarbon Functionalizations(분자활성 촉매반응 연구단) > Journal Papers (저널논문)
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