A series of N-substituted (Z)-3-((2-benzyl)-4-oxopent-2-yl)pyrrole-2,5-diones were synthesized and characterized. The compounds were synthesized from dimethyl-2-((Z)-2-(benzylamino)-4-oxopent-2-en-3-yl) fu...A series of N-substituted (Z)-3-((2-benzyl)-4-oxopent-2-yl)pyrrole-2,5-diones were synthesized and characterized. The compounds were synthesized from dimethyl-2-((Z)-2-(benzylamino)-4-oxopent-2-en-3-yl) fumarate (9) and dimethyl acetylenedi-carboxylate followed by reaction with some amines in refluxing ethanol. The identification of the compounds were based on spectroscopic analysis such as 1R (infrared), UV (ultraviolet), ^1H-NMR (nuclear magnetic resonance) and the microanalysis of the elements (CHN (microanalysis)) data.展开更多
以马来酸酐和苯甲胺为原料制备了N-苄基马来酰亚胺(NBMI),然后采用溶液聚合法与甲基丙烯酸十八酯、丙烯酸共聚合成了油溶性三元聚合物降黏剂BSA,并用红外光谱表征聚合物的结构和组成特性。通过对其降黏效果的评价,确定了最佳合成条件为...以马来酸酐和苯甲胺为原料制备了N-苄基马来酰亚胺(NBMI),然后采用溶液聚合法与甲基丙烯酸十八酯、丙烯酸共聚合成了油溶性三元聚合物降黏剂BSA,并用红外光谱表征聚合物的结构和组成特性。通过对其降黏效果的评价,确定了最佳合成条件为:n(甲基丙烯酸十八酯)∶n(NBMI)∶n(丙烯酸)=8∶2∶2,引发剂用量为1.2%,反应温度为75℃,反应时间为5 h。在50℃条件下,降黏剂加量为1 000 mg/L时,稠油的黏度由4 360 m Pa·s降到873 m Pa·s,表现出了良好的降黏效果。展开更多
文摘A series of N-substituted (Z)-3-((2-benzyl)-4-oxopent-2-yl)pyrrole-2,5-diones were synthesized and characterized. The compounds were synthesized from dimethyl-2-((Z)-2-(benzylamino)-4-oxopent-2-en-3-yl) fumarate (9) and dimethyl acetylenedi-carboxylate followed by reaction with some amines in refluxing ethanol. The identification of the compounds were based on spectroscopic analysis such as 1R (infrared), UV (ultraviolet), ^1H-NMR (nuclear magnetic resonance) and the microanalysis of the elements (CHN (microanalysis)) data.
文摘以马来酸酐和苯甲胺为原料制备了N-苄基马来酰亚胺(NBMI),然后采用溶液聚合法与甲基丙烯酸十八酯、丙烯酸共聚合成了油溶性三元聚合物降黏剂BSA,并用红外光谱表征聚合物的结构和组成特性。通过对其降黏效果的评价,确定了最佳合成条件为:n(甲基丙烯酸十八酯)∶n(NBMI)∶n(丙烯酸)=8∶2∶2,引发剂用量为1.2%,反应温度为75℃,反应时间为5 h。在50℃条件下,降黏剂加量为1 000 mg/L时,稠油的黏度由4 360 m Pa·s降到873 m Pa·s,表现出了良好的降黏效果。