日用化学工业
日用化學工業
일용화학공업
China Surfactant Detergent & Cosmetics
2015年
11期
616-620
,共5页
季铵盐%烯丙基二甲基烷基溴化铵%合成%性能
季銨鹽%烯丙基二甲基烷基溴化銨%閤成%性能
계안염%희병기이갑기완기추화안%합성%성능
quaternary ammonium salt%allyldimethylalkylammonium bromide%synthesis%performance
以烯丙基二甲基胺（ADMA）和1－溴代直链烷为原料，合成了2种不同碳链长度（n＝16，18）的烯丙基二甲基烷基溴化铵（C16和C18），得到较佳的合成工艺条件为以丙酮作溶剂，ADMA与溴代烷的摩尔比为1∶1.1～1.2，65℃下反应60 h，所得产品的收率分别为68.20％和66.05％。用IR，1 HNMR和元素分析对产品结构进行了表征，并测定了产品的表面活性、水溶性、泡沫性能、乳化性及絮凝性。结果表明，C16和C18的临界胶束浓度分别为5.5×10－4和1.8×10－4 mol／L，相应的表面张力分别为33.5和32.4 mN／m，产品具有良好的表面活性；C16和C18的Krafft点分别为8和21℃；与十二烷基硫酸钠（SDS）相比，产品的乳化能力较弱；C16的发泡能力以及对高岭土的絮凝能力明显强于C18。
以烯丙基二甲基胺（ADMA）和1－溴代直鏈烷為原料，閤成瞭2種不同碳鏈長度（n＝16，18）的烯丙基二甲基烷基溴化銨（C16和C18），得到較佳的閤成工藝條件為以丙酮作溶劑，ADMA與溴代烷的摩爾比為1∶1.1～1.2，65℃下反應60 h，所得產品的收率分彆為68.20％和66.05％。用IR，1 HNMR和元素分析對產品結構進行瞭錶徵，併測定瞭產品的錶麵活性、水溶性、泡沫性能、乳化性及絮凝性。結果錶明，C16和C18的臨界膠束濃度分彆為5.5×10－4和1.8×10－4 mol／L，相應的錶麵張力分彆為33.5和32.4 mN／m，產品具有良好的錶麵活性；C16和C18的Krafft點分彆為8和21℃；與十二烷基硫痠鈉（SDS）相比，產品的乳化能力較弱；C16的髮泡能力以及對高嶺土的絮凝能力明顯彊于C18。
이희병기이갑기알（ADMA）화1－추대직련완위원료，합성료2충불동탄련장도（n＝16，18）적희병기이갑기완기추화안（C16화C18），득도교가적합성공예조건위이병동작용제，ADMA여추대완적마이비위1∶1.1～1.2，65℃하반응60 h，소득산품적수솔분별위68.20％화66.05％。용IR，1 HNMR화원소분석대산품결구진행료표정，병측정료산품적표면활성、수용성、포말성능、유화성급서응성。결과표명，C16화C18적림계효속농도분별위5.5×10－4화1.8×10－4 mol／L，상응적표면장력분별위33.5화32.4 mN／m，산품구유량호적표면활성；C16화C18적Krafft점분별위8화21℃；여십이완기류산납（SDS）상비，산품적유화능력교약；C16적발포능력이급대고령토적서응능력명현강우C18。
Two kinds of allyldimethylalkylammonium bromide (C16 and C18 )with different carbon chain length (n=16,18)were synthesized by using allyldimethylamine (ADMA)and 1-bromo linear alkanes as starting materials. The better synthetic conditions are as follows:acetone as the solvent;reaction temperature,65 ℃;reaction time,60 h;molar ratio of ADMA to 1-bromo alkane,1∶1.1~1.2. Yield of the product are 68.20%and 66.05% respectively. Their structures were characterized by IR,1 HNMR and elemental analysis. Their performance was measured,such as surface activity,water solubility and foaming,emulsifying and flocculating performance. Results showed that critical micelle concentration of the products (C16 and C18 )is 5.5 × 10 -4 and 1.8 × 10 -4 mol/L respectively. Their corresponding surface tension is 33.5 and 32.4 mN/m respectively. The products display good surface properties. Krafft point is 8 and 21 ℃ respectively. The products display lower emulsifying power than that of sodium dodecyl sulfonate (SDS). The product C16 displays significantly stronger foaming power and stronger flocculating capacity to kaolin than that of the product C18 .
