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다차원 탄소재료 연구단
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Hydrogenated Poly(Dewar benzene): A Compact Cyclic Olefin Polymer with Enhanced Thermomechanical Properties

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Title
Hydrogenated Poly(Dewar benzene): A Compact Cyclic Olefin Polymer with Enhanced Thermomechanical Properties
Author(s)
Jinwon Seo; Stanfield Y. Lee; Christopher W. Bielawski
Subject
Hydrocarbons, Mixtures, Nitrogen, Hydrogenation,, ; andPolymers
Publication Date
2020-04
Journal
MACROMOLECULES, v.53, no.8, pp.3202 - 3208
Publisher
AMER CHEMICAL SOC
Abstract
© 2020 American Chemical Society. Dihydro Dewar benzene(bicyclo[2.2.0]hex-2-ene) was synthesized and polymerized using the Grubbs third generation catalyst. The corresponding ring-opening metathesis polymerization proceeded in a controlled manner, as determined by a linear relationship between the molecular weight of the polymer produced and the monomer-to-catalyst feed ratio as well as an ability to extend polymer chains through exposure to an additional monomer. Subsequent treatment with tosylhydrazide afforded the corresponding hydrogenated derivative. The hydrogenated polymer was found to exhibit high melting and decomposition temperatures as well as a relatively high Young's modulus when compared to other polyolefins [e.g., hydrogenated poly(norbornene) and poly(ethylene)]. The enhanced thermal and mechanical properties were found to originate from a relatively low phase transition entropy combined with high polymer crystallinity, features that were attributed to restricted bond rotation within the repeating units of the hydrogenated polymer
URI
https://pr.ibs.re.kr/handle/8788114/8663
DOI
10.1021/acs.macromol.0c00342
ISSN
0024-9297
Appears in Collections:
Center for Multidimensional Carbon Materials(다차원 탄소재료 연구단) > 1. Journal Papers (저널논문)
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