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1. 武汉大学化学与分子科学学院
2. 武汉大学化学与分子科学学院,湖北,武汉,430072
纸质出版日期:2006-02-01,
移动端阅览
[1]魏俊超,高志农,吕波.不对称季铵盐Gemini表面活性剂的合成及性质[J].武汉大学学报(理学版),2006(02):163-166.
WEI JUNCHAO, GAO ZHINONG, L BO. Synthesis and Properties of Dissymmetric Quaternary Ammonium Salts Gemini Surfactants. [J]. 2006, (2): 163-166.
[1]魏俊超,高志农,吕波.不对称季铵盐Gemini表面活性剂的合成及性质[J].武汉大学学报(理学版),2006(02):163-166. DOI:
WEI JUNCHAO, GAO ZHINONG, L BO. Synthesis and Properties of Dissymmetric Quaternary Ammonium Salts Gemini Surfactants. [J]. 2006, (2): 163-166. DOI:
以N
N-二甲基脂肪胺和1
4-二溴丁烷为原料
合成了一系列具有不同疏水链的不对称Gemini表面活性剂C12H25(CH3)2N+(CH2)4N+(CH3)2CmH2m+1(C12-4-Cm
m=12
14
16
18)
并通过1H NMR(核磁共振氢谱)、MS(质谱)和元素分析等方法鉴定其结构.采用表面张力法测定15℃时
m=14
18的临界胶束浓度ccmc值依次为7.56×10-7
9.72×10-7
1.23×10-6mol/L;对应的表面张力cγmc分别为28.46
30.08
28.71 mN.m-1.
A series of dissymmetric Gemini surfactants with the structure of(C
12
H
25
(CH
3
)
2
N
+
4
C
m
2m+1
denoted as C
-4-C
(m is 14
have been synthesized with N
N-dimethylalkylamine and 1
4-dibromobutane as the initial reagents.The structures were identified by
1
H NMR
MS and element analysis
and their surficial properties were investigated by equilibrium surface tension.All these products exhibit low critical micelle concentration(c
<
sub
>
cmc) and great efficiency in lowering the surface tension.While m is 14
18
their c
cmc values are 7.56×10
-7
9.72×10
1.23×10
-6
mol/L
and the γ
cmc values are 28.46
28.71 mN·m
-1
respectively.
不对称Gemini合成表面活性剂
dissymmetric Geminisynthesissurfactant
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