Molecular orientation in the Nematic Ordered Cellulose film using polarized FTIR accompanied with a vapor-phase deuteration method

Yukako Hishikawa, Eiji Togawa, Tetsuo Kondo

研究成果: Contribution to journalArticle

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Previously, the authors reported "Nematic Ordered Cellulose (NOC)" that is a well-ordered state of β-1,4-glucan chains without exhibiting typical X-ray diffraction patterns of any cellulose polymorphs (Togawa and Kondo 1999; Kondo et al. 2001; Kondo 2007). The NOC was prepared by stretching water-swollen gel-like films at the draw ratio of 2.0 to provide highly oriented β-1,4-glucan molecular chains of cellulose, which was proved by the high resolution TEM observation. In this paper, a detailed study of the unique ordered state of the NOC was attempted to characterize orientation of the main chains as well as the OH groups of molecules using polarized FTIR accompanied with a vapor-phase deuteration method. The dichroic analysis suggested that the main chains were fairly oriented in the stretching direction whereas the OH groups remained unoriented. The disordered state of the OH groups regardless of the oriented state for the main chain may hinder the oriented crystallization during the preparation of NOC films.

元の言語英語
ページ(範囲)539-545
ページ数7
ジャーナルCellulose
17
発行部数3
DOI
出版物ステータス出版済み - 6 1 2010

All Science Journal Classification (ASJC) codes

  • Polymers and Plastics

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