Dimensions and viscosity behavior of polyelectrolyte brushes in aqueous sodium chloride. A polymacromonomer consisting of sodium poly(styrene sulfonate)

Kanemaru, Eiji; Nakamura, Yo; Terao, Ken; Norisuye, Takashi

doi:info:doi/10.1016/j.polymer.2008.07.047

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タイトル	Dimensions and viscosity behavior of polyelectrolyte brushes in aqueous sodium chloride. A polymacromonomer consisting of sodium poly(styrene sulfonate)
著者	Kanemaru, Eiji Kanemaru, Eiji
	Nakamura, Yo Nakamura, Yo
	Terao, Ken Terao, Ken
	Norisuye, Takashi Norisuye, Takashi
キーワード等	Polyelectrolyte brush
	Light scattering
	Chain stiffness
抄録	Nine samples of a polymacromonomer consisting of sodium poly(styrene sulfonate) and having a side-chain polymerization degree of 15 are investigated by light scattering, small-angle X-ray scattering, and viscometry with 0.05 M aqueous NaCl at 25 °C as the solvent. The (total) weight-average molecular weight M_w ranges from 2.2 × 10^4 to 7.1 × 10^6. The radii of gyration, scattering functions, and intrinsic viscosities determined as functions of Mw are analyzed in terms of the cylindrical wormlike chain model. The estimated Kuhn segment length of about 120 nm is much larger than that (16 nm) for the polystyrene polymacromonomer with the equivalent side-chain length in toluene, a good solvent, while the chain thickness (5.5 nm) is comparable to or only slightly larger than that (5 nm) of the nonionic polymer. It is thus concluded that the electrostatic repulsion between side chains significantly stiffens the main chain of the polyelectrolyte brush.
公開者	Elsevier BV
掲載誌名	Polymer
巻	49
号	19
開始ページ	4174
終了ページ	4179
刊行年月	2008-09-09
ISSN	00323861
NCID	AA11537383
DOI	info:doi/10.1016/j.polymer.2008.07.047
URL	http://hdl.handle.net/11094/25936
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.49(19) P.4174-P.4179
DC.title	Dimensions and viscosity behavior of polyelectrolyte brushes in aqueous sodium chloride. A polymacromonomer consisting of sodium poly(styrene sulfonate)
DC.creator	Kanemaru, Eiji
	Nakamura, Yo
	Terao, Ken
	Norisuye, Takashi
DC.publisher	Elsevier BV
DC.language" scheme="DCTERMS.RFC1766	英語
DCTERMS.issued" scheme="DCTERMS.W3CDTF	2008-09-09
DC.identifier	info:doi/10.1016/j.polymer.2008.07.047
DC.identifier" scheme="DCTERMS.URI	http://hdl.handle.net/11094/25936
DC.subject	Polyelectrolyte brush
	Light scattering
	Chain stiffness
DCTERMS.abstract	Nine samples of a polymacromonomer consisting of sodium poly(styrene sulfonate) and having a side-chain polymerization degree of 15 are investigated by light scattering, small-angle X-ray scattering, and viscometry with 0.05 M aqueous NaCl at 25 °C as the solvent. The (total) weight-average molecular weight M_w ranges from 2.2 × 10^4 to 7.1 × 10^6. The radii of gyration, scattering functions, and intrinsic viscosities determined as functions of Mw are analyzed in terms of the cylindrical wormlike chain model. The estimated Kuhn segment length of about 120 nm is much larger than that (16 nm) for the polystyrene polymacromonomer with the equivalent side-chain length in toluene, a good solvent, while the chain thickness (5.5 nm) is comparable to or only slightly larger than that (5 nm) of the nonionic polymer. It is thus concluded that the electrostatic repulsion between side chains significantly stiffens the main chain of the polyelectrolyte brush.
citation_title	Dimensions and viscosity behavior of polyelectrolyte brushes in aqueous sodium chloride. A polymacromonomer consisting of sodium poly(styrene sulfonate)
citation_author	Kanemaru, Eiji
	Nakamura, Yo
	Terao, Ken
	Norisuye, Takashi
citation_publisher	Elsevier BV
citation_language	英語
citation_date	2008-09-09
citation_journal_title	Polymer
citation_volume	49
citation_issue	19
citation_firstpage	4174
citation_lastpage	4179
citation_issn	00323861
citation_doi	info:doi/10.1016/j.polymer.2008.07.047
citation_public_url	http://hdl.handle.net/11094/25936
citation_keywords	Polyelectrolyte brush
	Light scattering
	Chain stiffness

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