【作者】 成欣； 张建荣； 段庆华；

【Author】 Xin Cheng;Jianrong Zhang;Qinghua Duan;Research Institute of Petroleum Processing,SINOPEC;

【机构】 中国石化石油化工科学研究院；

【摘要】 聚醚胺是一种常用的高分子材料,广泛应做染料分散剂、环氧树脂固化剂以及燃料油添加剂。常见工业合成聚醚胺的方法是在临氢条件下将聚醚醇胺化,胺化反应温度控制在160℃~250℃之间,压力在3.4~34MPa,反应条件苛刻,对设备要求高。本文以磺化试剂甲基磺酰氯取代聚醚醇的羟基生成聚醚磺酸酯,再将其打入胺化釜中与氨或胺反应,就可以在较温和的条件下得到粗产品。用液相色谱—质谱联用方法对中间产物和终产物的成分进行了分析,终产物产率可达67.7%,反应最高温度150℃,压力不超过0.1MPa,且不需要贵金属催化,降低了聚醚胺的合成成本。通过对中间产物进行核磁共振分析,可以确定聚醚醇与磺酰氯反应生成了易于离去的磺酸酯。此后在钾盐催化下,磺酸基被氨或胺取代,实现了在温和条件下将聚醚醇转化为聚醚胺。该聚醚胺产物具有的分散和清净性能。更多还原

【Abstract】 Polyetheramines(PEAs) are widely used as Pigment dispersants, fuel additives and epoxy resin curing agent. Conventional synthesis route lines in the transfer polyether alcohol into PEA in hydrogen atmosphere, which is high-cost and complex, with reaction temperature of 160℃~250℃ and pressure of 3.4~34MPa. Herein, the hydroxyl of polyether alcoholis is replaced by sulfonic acid group. The yield of product is up to 67.7% confirmed by HPLC-MS method. And the cost of this method is relative low, because of the reaction pressure less than 0.1MPa and no use of noble metal catalyst. The NMR analysis results of intermediates demonstrate that sulphonic acid ester is formed via the reaction between polyether alcohol and sulfochlorides. As sulfonic groups are easy to be removed, the PEAs are effectively obtained via reacting with amines catalyzed by potassium salts. Furthermore, these resultants PEAs display very excellent dispersion and detergent property.更多还原