聚醚与长链烷烃酯共改性硅油的合成及应用  

Synthesis and Application of Silicone Oil Modified by Polyether and Long Alkyl Ester

作　　者：费贵强 廖勇[1] 罗庆梅[2] 王海花[1] 孙成林[1] 牛玉坤[1] 

机构地区：[1]陕西科技大学教育部轻化工助剂化学与技术重点实验室,陕西西安710021 [2]中国石油长庆油田分公司第一采油厂,陕西延安716000

出　　处：《精细化工》2016年第10期1153-1158,共6页Fine Chemicals

基　　金：国家自然科学基金(21544011);教育部留学回国人员科研启动基金(20121707);陕西省教育厅重点实验室项目(14JS014)~~

摘　　要：采用含氢硅油（PHMS）、烯丙基聚醚（FB1000）与不同质量的丙烯酸十八酯（SA）反应制备了具有侧链结构的高分子表面活性剂（PSA）。利用FTIR、~1HNMR、GPC、表面张力仪、动态激光光散射仪（DLS）、荧光光谱仪（FLD）对产物的结构与溶液性质进行了测定。结果表明,随着SA用量的增加,聚合物越易聚集缔合形成胶束,粒径从71.40 nm增加到141.07 nm,粒度分散系数（PDI）增大至0.396,随着疏水基团的增加,溶液表面张力降低至24.20 m N/m,临界胶束质量浓度（CMC）降至0.49 g/L。荧光光谱表明,聚合物溶液浓度增大到一定值时,溶液中会形成疏水微区,第一、第三发射峰的比值（I1/I3）不断减小,达到临界缔合浓度（CAC）后,芘分子会增溶到胶束中I1/I3趋于稳定。破乳实验结果表明,聚合物PSA的破乳脱水率达93%。A series of polymer surfactant（PSA） with side chain structure was prepared with hydrogen silicone oil（PHMS）,allyl polyether（FB1000） and different content of octadecyl acrylate（SA） as raw materials. The structure and solution properties of the obtained product were characterized and investigated by FTIR,~1HNMR,GPC,surface tension,dynamic light scattering（DLS） and fluorescence spectroscopy（FLD）. The results revealed that with the increase of SA dosage,the polymer easily associated and aggregated together to form micelles,the particle size increased from 71. 40 nm to141. 07 nm and the particle dispersion index（PDI） increased to 0. 396. Moreover,the surface tension of the polymer solution reduced to 24. 20 m N/m,and the critical micelle concentration（CMC） decreased to 0. 49 g/L when the amount of hydrophobic groups increased. The fluorescence spectra measurement showed that when the concentration of the polymer attain to certain value,hydrophobic microdomain could form in the solution. And the first and the third emission peak intensity ratio（I1/I3） gradually decreased. However,when the concentration of the polymer was greater than the critical aggregation concentration（CAC）,pyrene molecules dissolved into the micelles and I1/I3 value maintain a constant.The demulsification experiments demonstrated that the dehydration ratio of PSA was up to 93%.

关 键 词：含氢硅油 聚醚 丙烯酸十八酯 表面活性剂 破乳性 

分 类 号：O647[理学—物理化学]