2-(4-溴苯甲基)-苯并咪唑的合成及缓蚀性能  

Synthesis and Investigation of Corrosion Inhibition of 2-(4-Bromobenzyl)-benzimidazole

作　　者：唐欣[1] 唐有根[1] 刘小平[1] 蒋金芝[1] 

机构地区：[1]中南大学化学化工学院,湖南长沙410083

出　　处：《化学研究》2008年第3期48-50,共3页Chemical Research

摘　　要：以对溴苯乙腈和邻苯二胺为原料,在磷酸和多聚磷酸混合酸的催化下,合成了2-(4-溴苯甲基)-苯并咪唑(BBBI).利用红外、碳谱、氢谱、元素分析等方法对产物进行了结构表征.采用电化学极化曲线法考察了BB-BI在5%硫酸溶液中对铜的缓蚀作用,通过对比实验表明BBBI对铜电极腐蚀有较好的缓蚀效果.Under the catalysis of a mixture of polyphosphoric acid and phosphoric acid, 2-（4-bromobenzyl）-benzimidazole（BBBI） was synthesized from 4-bromobenzyl cyanide and o-diaminobenzene. The structure was characterized by IR, ^13C NMR, ^1H NMR, elements analysis, etc. The corrosion inhibition of BBBI for copper in 5 % H2SO4 solution was investigated by potentiodynamic polarization. It was found by contrastive experiment that BBBI acts as anodic inhibitor and has a better protection effect on copper electrode.

关 键 词：2-(4-溴苯甲基)-苯并咪唑 缓蚀 结构表征 极化曲线 

分 类 号：O626.23[理学—有机化学]