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Citation: Xu Jian-Xin, Liu Tian-Qing, Guo Rong. Determination of the Diffusion Coefficients of SDS Molecules in SDS/n-C₅H₁₁OH/H₂O Lyotropic Liquid Crystal[J]. Acta Physico-Chimica Sinica, ;2003, 19(04): 364-367. doi: 10.3866/PKU.WHXB20030418 shu

Determination of the Diffusion Coefficients of SDS Molecules in SDS/n-C₅H₁₁OH/H₂O Lyotropic Liquid Crystal

1.
School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou　225002

Received Date: 5 August 2002
Available Online: 15 April 2003

The diffusion coefficients of the SDS(Sodium dodecyl sulfate) molecules in lyotropic liquid crystal of SDS/n-C5H11OH/H2O system have been determined by the method of platinum microelectrode voltammetry.The results show that the diffusion coefficients of SDS molecules in lyotropic liquid crystal increase with water content at constant mass ratio of SDS/n-C5H11OH and also with n-pentanol content at constant mass ratio of SDS/H2O, but decrease with SDS content at constant mass ratio of H2O/n-C5H11OH.The diffusion coefficient of the SDS molecule in hexa nal liquid crystal is nearly one order of magnitude less than that of the SDS molecule in lamellar liquid crystal, but is about three to five orders less than that of the W/O and the O/W droplets.
- SDS;Microelectrode;Micelle;Lyotropic liquid crystal;Diffusion coefficient
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Determination of the Diffusion Coefficients of SDS Molecules in SDS/n-C5H11OH/H2O Lyotropic Liquid Crystal

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通讯作者: 陈斌, bchen63@163.com

Determination of the Diffusion Coefficients of SDS Molecules in SDS/n-C₅H₁₁OH/H₂O Lyotropic Liquid Crystal