Solution Properties of Amylose Tris(Phenylcarbamate) : Local Conformation and Chain Stiffness in 1,4-Dioxane and 2-Ethoxyethanol

Fujii, Taichi; Tsuda, Maiko; Kitamura, Shinichi; Terao, Ken; Norisuye, Takashi

doi:info:doi/10.1295/polymj.PJ2008233

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タイトル	Solution Properties of Amylose Tris(Phenylcarbamate) : Local Conformation and Chain Stiffness in 1,4-Dioxane and 2-Ethoxyethanol
著者	Fujii, Taichi Fujii, Taichi
	Tsuda, Maiko Tsuda, Maiko
	Kitamura, Shinichi Kitamura, Shinichi
	Terao, Ken Terao, Ken
	Norisuye, Takashi Norisuye, Takashi
キーワード等	Amylose Tris(Phenylcarbamate)
	Light Scattering
	SAXS
	Intrinsic Viscosity
	Wormlike Chain
	Hydrogen Bonding
抄録	Light and small-angle X-ray scattering, sedimentation equilibrium, viscosity, circular dichroism, and infrared absorption measurements have been made on 1,4-dioxane (DIOX) and 2-ethoxyethanol (2EE) solutions of seven amylose tris(phenylcarbamate) samples ranging in molecular weight from 2 x 10^4 to 3 x 10^6. Analyses of gyration radius, scattering function, and intrinsic viscosity data in terms of the wormlike chain model yield Kuhn segment lengths of 22 ± 2 nm and 16 ± 2nm in DIOX and 2EE, respectively, and a contour length per residue of 0.33 ± 0.02 nm in both, showing that the amylose derivative chain has high stiffness and a contour length slightly shorter than the known value 0.37-0.40 nm for amylosetriesters in the crystalline state. These results are consistent with the intramolecular hydrogen bonding between the C=0 and NH groups of the neighbor repeating units detected by infrared absorption and also with the locally regular (or helical) conformation indicated by circular dichroism.
公開者	Nature Publishing Group
掲載誌名	Polymer Journal
巻	41
号	3
開始ページ	201
終了ページ	207
刊行年月	2009-01
ISSN	00323896
NCID	AA00777013
DOI (出版社版)	info:doi/10.1295/polymj.PJ2008233
URL	http://hdl.handle.net/11094/25931
関連情報 (references)	http://www.nature.com/pj/journal/v41/n3/abs/pj200934a.html
言語	英語
カテゴリ	学術雑誌論文 Journal Article

著者版フラグ	author
NII資源タイプ	学術雑誌論文
ローカル資源タイプ	学術雑誌論文
dcmi資源タイプ	text
DCTERMS.bibliographicCitation	Polymer Journal.41(3) P.201-P.207
DC.title	Solution Properties of Amylose Tris(Phenylcarbamate) : Local Conformation and Chain Stiffness in 1,4-Dioxane and 2-Ethoxyethanol
DC.creator	Fujii, Taichi
	Tsuda, Maiko
	Kitamura, Shinichi
	Terao, Ken
	Norisuye, Takashi
DC.publisher	Nature Publishing Group
DC.language" scheme="DCTERMS.RFC1766	英語
DCTERMS.issued" scheme="DCTERMS.W3CDTF	2009-01
DC.identifier	info:doi/10.1295/polymj.PJ2008233
DC.identifier" scheme="DCTERMS.URI	http://hdl.handle.net/11094/25931
DC.subject	Amylose Tris(Phenylcarbamate)
	Light Scattering
	SAXS
	Intrinsic Viscosity
	Wormlike Chain
	Hydrogen Bonding
DCTERMS.abstract	Light and small-angle X-ray scattering, sedimentation equilibrium, viscosity, circular dichroism, and infrared absorption measurements have been made on 1,4-dioxane (DIOX) and 2-ethoxyethanol (2EE) solutions of seven amylose tris(phenylcarbamate) samples ranging in molecular weight from 2 x 10^4 to 3 x 10^6. Analyses of gyration radius, scattering function, and intrinsic viscosity data in terms of the wormlike chain model yield Kuhn segment lengths of 22 ± 2 nm and 16 ± 2nm in DIOX and 2EE, respectively, and a contour length per residue of 0.33 ± 0.02 nm in both, showing that the amylose derivative chain has high stiffness and a contour length slightly shorter than the known value 0.37-0.40 nm for amylosetriesters in the crystalline state. These results are consistent with the intramolecular hydrogen bonding between the C=0 and NH groups of the neighbor repeating units detected by infrared absorption and also with the locally regular (or helical) conformation indicated by circular dichroism.
citation_title	Solution Properties of Amylose Tris(Phenylcarbamate) : Local Conformation and Chain Stiffness in 1,4-Dioxane and 2-Ethoxyethanol
citation_author	Fujii, Taichi
	Tsuda, Maiko
	Kitamura, Shinichi
	Terao, Ken
	Norisuye, Takashi
citation_publisher	Nature Publishing Group
citation_language	英語
citation_date	2009-01
citation_journal_title	Polymer Journal
citation_volume	41
citation_issue	3
citation_firstpage	201
citation_lastpage	207
citation_issn	00323896
citation_doi	info:doi/10.1295/polymj.PJ2008233
citation_public_url	http://hdl.handle.net/11094/25931
citation_keywords	Amylose Tris(Phenylcarbamate)
	Light Scattering
	SAXS
	Intrinsic Viscosity
	Wormlike Chain
	Hydrogen Bonding

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