| A role of the anteiso branch of 18-MEA in 18-MEA/SPDA to form a persistent hydrophobicity to alkaline-color-treated weathered hair. | |
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MedLine Citation:
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PMID: 20557591 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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J. Cosmet. Sci., 60, 509-518 (September/October 2009) Synopsis The effect of the anteiso-branch moiety of 18-MEA (18-methyleicosanic acid) to create a persistent hydrophobicity of alkaline-color-treated weathered hair treated with 18-MEA/SPDA (stearoxypropyldimethylamine) was investigated by comparing a straight-chain fatty acid (n-heneicosanoic acid, n-HEA) and an iso-branch fatty acid (19-methyleicosanic acid, 19-MEA) with the anteiso-branch fatty acid (18-MEA), using dynamic contact angle measurements, quantification of 18-MEA by LC/MS, and temperature controlled atomic force microscopy (AFM). The dynamic contact angle measurements indicated that the anteiso-branch moiety of 18-MEA is critical for the creation of a persistent hydrophobicity to alkaline-color-treated weathered hair. The temperature-controlled AFM investigations revealed that the anteiso-branch moiety of 18-MEA in the 18-MEA/SPDA system produces a persistent hydrophobicity to alkaline-color-treated weathered hair by providing higher fluidity to the upper region of the 18-MEA/SPDA layer. |
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Authors:
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H Tanamachi; S Inoue; S Tokunaga; H Tsujimura; N Tanji; M Oguri; T Habe |
Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: International journal of cosmetic science Volume: 32 ISSN: 1468-2494 ISO Abbreviation: Int J Cosmet Sci Publication Date: 2010 Jun |
Date Detail:
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Created Date: 2010-06-18 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8007161 Medline TA: Int J Cosmet Sci Country: England |
Other Details:
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Languages: eng Pagination: 237 Citation Subset: IM |
Affiliation:
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Beauty Research Center, Kao Corporation, 2-1-3, Bunka, Sumida-ku, Tokyo 131-8501; |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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