Syntheses and properties of hybrid surfactants

杂化表面活性剂的合成及性能

• 批准号: 07651040
• 负责人: YOSHINO Norio
• 金额: $ 1.41万
• 依托单位: Science University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1995
• 资助国家: 日本
• 起止时间: 1995 至 1996
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07651040/
• 关键词: Hybrid surfactant; Fluorocarbon chain; Fluoro compound; Synthesis of surfactant; Surface tension; Krafft point; Anionic surfactant; フッ素化合物

Six hybrid surfactants, 1-oxo-1- [(4-fluoroalkyl) phenyl] -2-alkanesulfonates, [F (CF_2)_nC_6H_4COCH (SO_3Na) (CH_2)_m, n=4,6, m=2,4,6], were synthesized. These surfactants were obtained in 54-85% yields and the properties were white powder. Solution properties of hybrid surfactants have been measured in terms of Krafft point, surface tension, n-octane/water and water/perfluoro-n-hexane interfacial tension, and aggregation number of micelles. The Krafft point, the area occupied by a molecule at the air/water and octane/water interfaces, and the aggregation number of micelles increase with an increase of fluorocarbon and/or hydrocarbon chain length, while critical micelle concentration (cmc), surface tension, and octane/water interfacial tension at the cmc decrease with an increase of fluorocarbon and/or hydrocarbon chain length. These surfactants are found to exhibit lower surface tension and hydrocarbon/water and fluorocarbon/water interfacial tension at the same time and make it possible to float a surfactant aqueous solution on a hydrocarbon substance such as benzene.

合成了6种杂化表面活性剂：1-氧代-1-[(4-氟烷基)苯基]-2-烷基磺酸盐[F(CF2)_nC6H4COCH(SO3Na)(CH2)_m，n=4，6，m=2，4，6]。这些表面活性剂的产率为54-85%，性质为白色粉末。用Krafft点、表面张力、正辛烷/水、水/全氟正己烷界面张力和胶束聚集数测定了杂化表面活性剂的溶液性质。随着碳氢化合物链长的增加，Krafft点、分子在空气/水和辛烷/水界面占据的面积以及胶束聚集数增加，而临界胶束浓度(CMC)、表面张力和辛烷/水界面张力随着碳氢化合物链长的增加而减小。这些表面活性剂同时表现出较低的表面张力和烃/水和氟碳/水的界面张力，并使表面活性剂的水溶液能够漂浮在烃类物质(如苯)上。

项目成果

A.Ito: "Micellar Solution Properties of Fluorocarbon-Hydrocarbon Hibrid Surfactants" Langmuir. 12(24). 5768-5772 (1996)

A.Ito：“氟碳-碳氢化合物杂化表面活性剂的胶束溶液特性”Langmuir。

N.Yoshino: "Syntheses of Hybrid Anionic Surfactants Containing Fluorocarbon and Hydrocarbon Chains" Langmuir. 11(2). 466〜469 (1995)

N. Yoshino：“含有氟碳和烃链的混合阴离子表面活性剂的合成”Langmuir 11(2) 466-469 (1995)。

A.Ito: "Micellar Solution Properties of Fluorocarbon-Hydrocarbon Hybrid Surfactants" Langmuir. 12 (24). 5768-5772 (1996)

A.Ito：“氟碳-碳氢化合物混合表面活性剂的胶束溶液特性”Langmuir。

A.Ito: "Anomalous Behavior of Fluorocarbon-Hydrocarbon Hybrid Surfactant in its Aqueous Solution …Surface Tension and Micropolarity…" J.Jpn.Oil Chem.Soc.,. 45(5). 479〜482 (1996)

A.Ito：“氟碳烃杂化表面活性剂在水溶液中的异常行为……表面张力和微极性……”J.Jpn.Oil Chem.Soc., 45(5) (1996)。

N.Yoshino: "Syntheses of Hybrid Anionic Surfactant Containing Fluorocarbon and Hydrocarbon Chains" Langmuir. 11 (2). 466-469 (1995)

N.Yoshino：“含有氟碳和烃链的混合阴离子表面活性剂的合成”Langmuir。