化工进展
化工進展
화공진전
CHEMICAL INDUSTRY AND ENGINEERING PROGRESS
2014年
2期
439-444,452
,共7页
徐运欢%郑成%林璟%毛桃嫣%黄武欢%甘茵
徐運歡%鄭成%林璟%毛桃嫣%黃武歡%甘茵
서운환%정성%림경%모도언%황무환%감인
含氟季铵盐%表面活性剂%N-甲基二乙醇胺%表面张力%临界胶束浓度
含氟季銨鹽%錶麵活性劑%N-甲基二乙醇胺%錶麵張力%臨界膠束濃度
함불계안염%표면활성제%N-갑기이을순알%표면장력%림계효속농도
perfluoroalkyl-containing quaternary ammonium salt%surfactants%N-methyl diethanolamine%surface tension%critical micellar concentration
以N-甲基二乙醇胺（MDEA）和全氟己基乙基碘为主要原料，合成了一种新型的含氟季铵盐表面活性剂。通过单因素和正交实验，考察了溶剂、反应温度、反应物摩尔比、溶剂体积和反应时间对MDEA转化率的影响，探讨优化出最佳工艺条件：溶剂为正丁醇，反应温度90℃，n(全氟己基乙基碘)∶n(MDEA)=2.5∶1，溶剂体积为8 mL，反应时间为42 h，转化率达到93.75%。通过傅里叶红外吸收光谱、质谱和核磁共振谱对目标产物进行表征，并通过测定其水溶液的表面张力研究了产物的表面活性。其临界胶束浓度（CMC）为1.518 mmol/L，临界胶束浓度下的表面张力（γCMC）为9.3 mN/m；单分子饱和吸附量、单分子饱和吸附面积和胶束化标准自由能分别为0.354×10-10 mol/cm2、4.69 nm2和-26.03 kJ/mol。与同类产品相比较，产物具有优异的表面性能。
以N-甲基二乙醇胺（MDEA）和全氟己基乙基碘為主要原料，閤成瞭一種新型的含氟季銨鹽錶麵活性劑。通過單因素和正交實驗，攷察瞭溶劑、反應溫度、反應物摩爾比、溶劑體積和反應時間對MDEA轉化率的影響，探討優化齣最佳工藝條件：溶劑為正丁醇，反應溫度90℃，n(全氟己基乙基碘)∶n(MDEA)=2.5∶1，溶劑體積為8 mL，反應時間為42 h，轉化率達到93.75%。通過傅裏葉紅外吸收光譜、質譜和覈磁共振譜對目標產物進行錶徵，併通過測定其水溶液的錶麵張力研究瞭產物的錶麵活性。其臨界膠束濃度（CMC）為1.518 mmol/L，臨界膠束濃度下的錶麵張力（γCMC）為9.3 mN/m；單分子飽和吸附量、單分子飽和吸附麵積和膠束化標準自由能分彆為0.354×10-10 mol/cm2、4.69 nm2和-26.03 kJ/mol。與同類產品相比較，產物具有優異的錶麵性能。
이N-갑기이을순알（MDEA）화전불기기을기전위주요원료，합성료일충신형적함불계안염표면활성제。통과단인소화정교실험，고찰료용제、반응온도、반응물마이비、용제체적화반응시간대MDEA전화솔적영향，탐토우화출최가공예조건：용제위정정순，반응온도90℃，n(전불기기을기전)∶n(MDEA)=2.5∶1，용제체적위8 mL，반응시간위42 h，전화솔체도93.75%。통과부리협홍외흡수광보、질보화핵자공진보대목표산물진행표정，병통과측정기수용액적표면장력연구료산물적표면활성。기림계효속농도（CMC）위1.518 mmol/L，림계효속농도하적표면장력（γCMC）위9.3 mN/m；단분자포화흡부량、단분자포화흡부면적화효속화표준자유능분별위0.354×10-10 mol/cm2、4.69 nm2화-26.03 kJ/mol。여동류산품상비교，산물구유우이적표면성능。
A novel perfluoroalkyl-containing quaternary ammonium salt was synthesized from N-methyl diethanolamine (MDEA) and perfluorinated hexyl ethyl iodide. The effects of solvent, reaction temperature,reactant molar ratio,solvent volume and reaction time on reaction on conversion rate were studied. The optimal process parameters for synthesizing product were obtained by orthogonal experiment,which are 8 mL n-butyl alcohol,90℃ reaction temperature,42 h reaction time,2.5∶1 molar ratio of perfluorinated hexyl ethyl iodide and MDEA. The conversion rate of MDEA was 93.75%. The structure of product was characterized by Fourier transform infrared spectroscopy,mass spectrometry and nuclear magnetic resonance spectrum. The surface properties of the surfactant were studied by measuring the surface tension of the product aqueous solution. The results showed that the critical micellar concentration (CMC) of the above perfluoroalkyl-containing quaternary ammonium salt was 1.518 mmol/L,theγCMC was 9.3 mN/m. The single molecule saturated adsorption,single molecule average areas on the saturated adsorption layer,and the micellization standard free energy were 0.354×10-10 mol/cm2,4.69 nm2,and-26.03 kJ/mol,respectively. Compared with similar products,the product exhibited excellent surface properties.
