腰果基表面活性剂的合成及其表面性质  

Synthesis and Surface Property of Cashew-based Surfactants

作　　者：王俊[1] 刘长环[1] 韩军[2] 宁萌萌[1] 李翠勤[1] 

机构地区：[1]大庆石油学院化学化工学院,大庆163318 [2]辽河油田分公司锦州工程技术处

出　　处：《应用化学》2010年第7期866-868,共3页Chinese Journal of Applied Chemistry

摘　　要：以腰果酚为起始原料,合成了中间体腰果酚聚氧乙烯醚(CPE),进而在NaOH的催化作用下,由CPE和氯乙酸合成了系列腰果酚聚氧乙烯醚羧酸盐(CPEC)。采用红外光谱和元素分析技术对产物的结构进行了表征,用表面张力法研究了CPEC的表面性能。结果表明,该表面活性剂水溶液的临界胶束浓度(CMC)为9.30、8.50、8.10和7.71mmol/L,相应的临界表面张力为28.38、28.60、30.40和30.00mN/m。根据Gibbs公式得出表面活性剂在溶液表面的最大吸附量为0.7087、0.7350、0.7195和0.7346μmol/m2,表面活性剂的最小分子截面积为2.3439、2.2600、2.3087和2.2613nm2。Cashew phenol polyoxyethylene ethers ( CPE) were synthesized from cashew phenol as raw materials. In the presence of sodium hydroxide as a catalyst,a series of cashew phenol polyoxyethylene ether carboxylates( CPEC) were synthesized with CPE and chloroacetic acid. The products were structurally confirmed by FT-IR and elemental analysis. Surface properties were determined by a surface tension method. The experimental results showed that when critical micelle concentrations( CMC) of the surfactants were 9. 30,8. 50,8. 10 and 7. 71 mmol/L,the corresponding surface tensions at CMC were 28. 38,28. 60,30. 40 and 30. 00 mN/m,respectively. By means of Gibbs formula,the maximum adsorption amounts of the surfactants were 0. 7087,0. 7350,0. 7195 and 0. 7346 μmol/m2,and the minimal molecular projective areas of them were 2. 3439,2. 2600,2. 3087 and 2. 2613 nm2,respectively,on solution surface.

关 键 词：腰果酚 腰果酚聚氧乙烯醚羧酸盐 表面性能 

分 类 号：O647.1[理学—物理化学]