节点文献
漆酚电化学聚合与表征
Preparation and Characterization of the Electrochemical Polymerization of Urushiol
【摘要】 提纯过的漆酚在 Na2 SO4的乙醇 /水溶液中用恒电位法 ,以铂或不锈钢为研究电极 ,其电位不低于0 .680 V ( vs.SCE) ,进行电化学聚合 ,获得电化学聚合漆酚 ( EPU ) .探讨了较适宜的聚合方式及反应条件 ,采用红外光谱、差热 -热重 ( DTA-TG)等手段进行表征 ,确定其结构 .研究发现 ,采用恒电位 ( 1 .60 0 V)在不锈钢电极上电化学氧化聚合 5 0 min可获得 EPU,其聚合部位主要在于漆酚的长侧碳链基上的不饱和双键 .
【Abstract】 By the method of electrochemical technique and under c ontrolled condit ions, the urushiol oxidized into electropolyurushiol(EPU) film. The film of EPU can be prepared in Na 2SO 4 ethanol and aqueous mixed solution on Pt or stain less steel electrode by constant potential. In constant potential, the electrode pot e ntial could not be lower than 0.680V or 1.200V(vs.SCE) with Pt or stainless stee l as working electrode. These EPU membranes were characterized by FT-IR, D TA -TG, and the structure of EPU membrane was determinate. The results showed tha t, the process of electropolymerization in the urushiol electrolysis solution last ed 50 minutes with a stable voltage of 1.600 V in the cell. Some double bonds of t he long side-chain alkyl of urushiol had taken part in the electrochemical poly merization reaction.
- 【文献出处】 福建师范大学学报(自然科学版) ,Journal of Fujian Teachers University(Natural Science) , 编辑部邮箱 ,2003年01期
- 【分类号】O631
- 【被引频次】4
- 【下载频次】112