Crystalline structure of polyethylene containing vinylene units in the main chain

Naofumi Naga, Rika Arai, Genzo Kikuchi, Akinori Toyota, Keiichi Noguchi, Masato Sone, Fukiko Shirae, Tomoka Gotoh, Hiromichi Kurosu

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Abstract

Polyethylene containing trans- or cis-vinylene units in the main chain has been synthesized by means of partial hydrogenation of trans- or cis-polypentenamer (TP or CP), and trans-polyoctenamer (TO). Crystalline structure of the polymers has been investigated with wide-angle X-ray diffraction, FT-IR analyses, solid-state NMR measurements and quantum chemical calculations of the NMR chemical shifts. These results clear that the partially hydrogenated TP or CP samples having an average number of methylene units of 6.9-8.4 per vinylene unit forms not only orthorhombic crystal but hexagonal-like crystal.

Original languageEnglish
Pages (from-to)4857-4866
Number of pages10
JournalPolymer
Volume52
Issue number21
DOIs
Publication statusPublished - 2011 Sep 29

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Keywords

  • Crystalline structure
  • Polyethylene
  • Vinylene unit

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics

Cite this

Naga, N., Arai, R., Kikuchi, G., Toyota, A., Noguchi, K., Sone, M., ... Kurosu, H. (2011). Crystalline structure of polyethylene containing vinylene units in the main chain. Polymer, 52(21), 4857-4866. https://doi.org/10.1016/j.polymer.2011.08.058