Pressure Effect on Micellization of Alkane-1-sulfonates with Divalent Cation of Separate Electric Charge as Counterion.

• MOROI Yoshikiyo

  Department of Chemistry, Faculty of Science, Kyushu University

• KAI Yoshiaki

  Department of Chemistry, Faculty of Science, Fukuoka University

• MURATA Yoshio

  Department of Chemistry, Faculty of Science, Fukuoka University

• TANAKA Mitsuru

  Department of Chemistry, Faculty of Science, Fukuoka University

Bibliographic Information

Other Title

• 2価の荷電分離型陽イオンを対イオンにもつアルキルスルホン酸塩のミセル形成に及ぼす圧力効果
• Pressure Effect on Micellization of Alk

Abstract

Effect of pressure on solution properties at 40.0°C of the alkane-1-sulfonates with divalent cation of separate electric charge as counterion [1, 1'- (1, ω-ethanediyl) bispyridinium dodecanesulfonate and 1, 1'- (1, ω-decanediyl) bispyridinium tetradecanesulfonate] was examined by their critical micelle concentration (cmc). Specific conductivity of the surfactants below the cmc was found to decrease monotonously for the former but to increase for the latter with increasing pressure. This indicated that the latter surfactant with divalent counterion of longer charge separation was in associated form below the cmc and that the association decreased with increasing pressure. The cmc of both surfactants was found to have a maximum around 130 MP as conventional ionic surfactants. The volume change on micellization, ΔV_m, was evaluated from the pressure dependence of cmc, and the ΔV_m values decreased more for the former than for the latter surfactant. Static and dynamic light scatterings were determined for the micellar solutions, from which 77 and 28 were obtained for the aggregation number and 1.9 and 1.2 nm were obtained for the hydrodynamic radius for the former and the latter, respectively. The smaller aggregation number and the shorter radius were controlled by the divalent cationic counterion of longer charge separation.

Journal

• Journal of Japan Oil Chemists' Society

  Journal of Japan Oil Chemists' Society 45 (9), 833-838, 1996

  Japan Oil Chemists' Society

Keywords

• critical micelle concentration (cmc)
• pressure effect on micellization
• divalent counterion of separate electric charge
• aggregation number of micelle
• dynamic radius of micelle

Details

• CRID: 1390001204093554304
• NII Article ID: 130001016360
• NII Article ID: 10002269795
• NII Book ID: AN10512582
• DOI: 10.5650/jos1996.45.833
• ISSN: 18841996
• ISSN: 13418327
• NDL BIB ID: 4037858
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4037858
• Web Site: https://www.jstage.jst.go.jp/article/jos1996/45/9/45_9_833/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed