以脂肪醇、环氧乙烷、氯化亚砜和亚硫酸钾等为原料,依次通过阴离子聚合、氯代、磺化等反应合成了脂肪醇聚氧乙烯醚磺酸盐（AESO）。通过IR,13 C NMR,ESI-MS等手段对产物进行了结构表征。利用单因素法对各步反应的工艺条件进行了优化。...以脂肪醇、环氧乙烷、氯化亚砜和亚硫酸钾等为原料,依次通过阴离子聚合、氯代、磺化等反应合成了脂肪醇聚氧乙烯醚磺酸盐（AESO）。通过IR,13 C NMR,ESI-MS等手段对产物进行了结构表征。利用单因素法对各步反应的工艺条件进行了优化。各步反应的最佳条件为：阴离子聚合反应中,采用环氧乙烷间断式进样法,n（脂肪醇）∶n（环氧乙烷）=1∶4,催化剂氢氧化钠的用量为脂肪醇质量的0.1%,反应温度为115~125℃,反应压力为0.4 MPa,收率为44.2%;氯代反应中,以吡啶为催化剂,氯化亚砜为氯代剂,n（脂肪醇聚氧乙烯醚）∶n（氯化亚砜）∶n（吡啶）=1∶1.6∶0.8,70℃反应10h,收率为92.4%;磺化反应中,以水为溶剂,正己醇为稀释剂,质量均为氯代物质量的20%,亚硫酸钾为磺化剂,n（亚硫酸钾）∶n（氯代物）=1.5∶1,反应压力为1.0 MPa,155℃反应6h,经两相滴定法测得收率为91.3%。展开更多
The cationic starch was prepared via reaction of starch with N (2,3 glycidyl)trimethyl ammonium chloride(GTA) using fatty alcohol polyoxyethylene ether(FAPE) as a catalyst in dry process . The effects of the catalyst,...The cationic starch was prepared via reaction of starch with N (2,3 glycidyl)trimethyl ammonium chloride(GTA) using fatty alcohol polyoxyethylene ether(FAPE) as a catalyst in dry process . The effects of the catalyst, reaction time, reaction temperature, amounts of FAPE and sodium hydroxide on the reaction efficiency were discussed. With 0 6 g catalyst the reaction efficiency achieved 92 1% in 50 minutes.展开更多
文摘以脂肪醇、环氧乙烷、氯化亚砜和亚硫酸钾等为原料,依次通过阴离子聚合、氯代、磺化等反应合成了脂肪醇聚氧乙烯醚磺酸盐（AESO）。通过IR,13 C NMR,ESI-MS等手段对产物进行了结构表征。利用单因素法对各步反应的工艺条件进行了优化。各步反应的最佳条件为：阴离子聚合反应中,采用环氧乙烷间断式进样法,n（脂肪醇）∶n（环氧乙烷）=1∶4,催化剂氢氧化钠的用量为脂肪醇质量的0.1%,反应温度为115~125℃,反应压力为0.4 MPa,收率为44.2%;氯代反应中,以吡啶为催化剂,氯化亚砜为氯代剂,n（脂肪醇聚氧乙烯醚）∶n（氯化亚砜）∶n（吡啶）=1∶1.6∶0.8,70℃反应10h,收率为92.4%;磺化反应中,以水为溶剂,正己醇为稀释剂,质量均为氯代物质量的20%,亚硫酸钾为磺化剂,n（亚硫酸钾）∶n（氯代物）=1.5∶1,反应压力为1.0 MPa,155℃反应6h,经两相滴定法测得收率为91.3%。
文摘The cationic starch was prepared via reaction of starch with N (2,3 glycidyl)trimethyl ammonium chloride(GTA) using fatty alcohol polyoxyethylene ether(FAPE) as a catalyst in dry process . The effects of the catalyst, reaction time, reaction temperature, amounts of FAPE and sodium hydroxide on the reaction efficiency were discussed. With 0 6 g catalyst the reaction efficiency achieved 92 1% in 50 minutes.
