科研论文

　70 有　机　硅　材　料第22卷

　　对比产物的红外光谱,发现第一步产物中

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3220cm处的吸收峰消失了,但在2957cm

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和2857cm处C—H的吸收峰还在;在1151

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cm处有SO的吸收峰;1095cm处有Si—O键的伸缩振动吸收峰。产物的核磁共振谱中在

参考文献

[1]黄月文,刘伟区,罗广建1有机硅、氟高分子表面活

δ=2150处出现了与硅和氮相连的亚甲基质子峰,由于氮、硅原子的电子效应,使得与之相连的亚甲基的化学位移向低场偏移。硅上的乙氧基中—CH2的特征峰为δ=31205,—CH3的特征峰为δ=11741,这说明产物中引入了三乙氧基硅烷基。同时,两个氮原子之间的三个亚甲基中由于耦合作用,中间亚甲基分裂成多重峰。213　产物的表面张力　　将产物配成质量分数为011%的水溶液,加入2滴乙醇,测得的表面张力为1713mN/m,空白实验的表面张力是4216,3　　　N,N-二甲基-1,3-丙二胺作用得到N-3-二甲氨基丙基全氟辛

基磺酰胺,再与氯甲基三乙氧基硅烷反应制得N-二甲胺基丙基-N-三乙氧硅基甲基全氟辛基磺酰胺,产率达84%。测定表明该产品具有良好的憎水憎油特性,在多种常用溶剂中均有较低的溶解性,显著地降低了水的表面能,表现出了良好的表面活性能。

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activityapplicationsWiley-VCH,Germany,20041

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SynthesisofN-dimethylpropyl-N-triethoxylsilylmethyl

PerfluorooctylsulfonylAmideWANGWei-jia,ZHUChun-nan

(CollegeofChemistry,HuazhongNormalUniversity,Wuhan430079)

Abstract:N-dimethylpropyl-N-trioxethylsiliconmethyl-perfluorooctylsulfonylamidewassynthesizedat84%yieldbyreactionofchlorometyltriethoxylsilaneandN-3-dimethylamidopropylperfluorooctylsulfonylamidethatwaspreparedbyperfluorooctylsulfonylfluorideandN,N-dimethyl-1,3-propyldiamineintoluene.ThestructureofthecompoundwasidentifiedbymeansofIRand1HNMR.Surfacetensionofthecompoundwasmeasuredanditsapplicationwasdiscussed.

Keywords:perfluorooctylsulfonylamide,fluorocarbonsurfactantcontainingsilicon,surfacetension