CAJ | 학술논문

以表面张力法、碘光谱法、水增溶法和相态图法研究了自制的三种十四烷基芳基磺酸盐在不同条件下形成的分子有序组合体(胶束、反胶束和微乳液),并考察了分子结构、溶剂、无机盐和短链醇等对其的影响.结果表明:增加十四烷基芳基磺酸盐分子亲油基支化度,不利于其在水溶液或混合极性溶剂(乙二醇-水)中形成胶束而有利于其在非极性溶剂正庚烷中形成反胶束;溶剂极性的降低,促使表面活性剂溶液由胶束溶液→单体溶液→ 反胶束溶液转变;无机盐或短链醇的加入促进了水溶液中胶束的形成,且反离子价态数或醇烷基碳原子数越大,越有利于胶束形成;无机盐浓度的增加导致表面活性剂,正丁醇/正辛烷/NaCl/水形成的微乳液体系在一定温度下发生由WinsorⅠ→WinsorⅢ→winsor Ⅱ型的转变.
이표면장역법、전광보법、수증용법화상태도법연구료자제적삼충십사완기방기광산염재불동조건하형성적분자유서조합체(효속、반효속화미유액),병고찰료분자결구、용제、무궤염화단련순등대기적영향.결과표명:증가십사완기방기광산염분자친유기지화도,불리우기재수용액혹혼합겁성용제(을이순-수)중형성효속이유리우기재비겁성용제정경완중형성반효속;용제겁성적강저,촉사표면활성제용액유효속용액→단체용액→ 반효속용액전변;무궤염혹단련순적가입촉진료수용액중효속적형성,차반리자개태수혹순완기탄원자수월대,월유리우효속형성;무궤염농도적증가도치표면활성제,정정순/정신완/NaCl/수형성적미유액체계재일정온도하발생유WinsorⅠ→WinsorⅢ→winsor Ⅱ형적전변.
We investigated the micelles, reverse micelles, and microemulsions formed by three kinds of tetradecyl aryl sulfonates synthesized in our laboratory under different conditions using surface tension, iodine spectrometry, water solubilization, and phase diagram methods. The influences of molecular structure, solvents, inorganic saltss and short chain alcohols on these molecular organized assemblies were discussed. Results show that aqueous solutions or mixed polar solvents (EG-water) are unfavorable for micelle formation but that reverse micelle formation in non-polar solvents (n-heptane) is favorable when the branching coefficients of the lipophilic group in the tetradecyl aryl sulfonate molecules increase. A decrease in solvent polarity causes the surfactant solution to transform from a micellar solution to a monomer solution and then to a reverse micellar solution. Upon addition of inorganic salts or short chain alcohols, micelle formation is favored in aqueous solutions. Together with higher counter-ion valence states or alcohol alkyl carbon atoms, micelle formation increases even further. As the concentration of inorganic salt increases, the surfactant/ n-butanol/n-octane/NaCl/water microemulsion systems transform from Winsor Ⅰ to Winsor Ⅲ and then to Winsor Ⅱ at specific temperatures.