CAJ | 학술논문

　　以溴代十二烷和乙二胺为原料，通过亲核取代反应制备了N,N-双十二烷基乙二胺（C26H56N2），通过实验考察了合成条件变化对N,N-双十二烷基乙二胺合成的影响。结果表明：在n(溴代十二烷)∶n(乙二胺)=2.4∶1、回流温度下反应8 h得到目标产物，收率为45.5%；利用FTIR、1H NMR、元素分析等手段对其结构进行了表征。探索了 N,N-双十二烷基乙二胺作为润滑油添加剂的新应用。采用四球摩擦磨损试验考察了其在聚乙二醇400中的摩擦学性能。结果显示，当N,N-双十二烷基乙二胺添加量为2%时，聚乙二醇400的PB值可由696 N提高至862 N。
　　이추대십이완화을이알위원료，통과친핵취대반응제비료N,N-쌍십이완기을이알（C26H56N2），통과실험고찰료합성조건변화대N,N-쌍십이완기을이알합성적영향。결과표명：재n(추대십이완)∶n(을이알)=2.4∶1、회류온도하반응8 h득도목표산물，수솔위45.5%；이용FTIR、1H NMR、원소분석등수단대기결구진행료표정。탐색료 N,N-쌍십이완기을이알작위윤활유첨가제적신응용。채용사구마찰마손시험고찰료기재취을이순400중적마찰학성능。결과현시，당N,N-쌍십이완기을이알첨가량위2%시，취을이순400적PB치가유696 N제고지862 N。
N,N-didodecylethylenediamine was prepared via nucleophilic substitution by using ethylenediamine and 1-bromododecane. The effect of reaction conditions on the synthesis of N,N-didodecylethylenediamine was investigated experimentally. The results show that the yield of N,N-didodecylethylenediamine is 45.5% under the following reaction conditions:the molar ratio of 1-bromododecane to ethylenediamine was 2.4∶1,and the reaction was effected for 8 h at reflux temperature. The chemical structures of the prepared compounds were characterized by FTIR, 1H-NMR spectra and elemental anal. New application of N,N-didodecylethylenediamine as additives in lubricants was explored. The tribological properties of the N,N-didodecylethylenediamine as additives in PEG 400 were evaluated using a four-ball tester. The results show that the PB value of PEG 400 could be increased from 696 N to 862 N when the adding weight percent of N,N-didodecylethylenediamine is 2%.