摘要
以新戊二醇、柠檬酸为原料,设计合成了以新戊二醇为核心的多羟基多酸爪形小分子柠檬酸-新戊二醇-柠檬酸(CNC),再利用酯化反应依次与带有功能化基团的硬酯酸、十八醇接枝合成了新型的多元酯类爪形大分子柠檬酸-新戊二醇-柠檬酸-硬酯酸-十八醇(CNC-SO)。用核磁共振、红外光谱对合成的两种化合物进行了结构表征,表征结果显示,合成产物为CNC和CNC-SO,结构与所设计的分子结构吻合。用元素分析确定了两种化合物的组成分别为C17H24O14和C107H202O15。CNC-SO可溶于非极性的有机溶剂,不溶于水。在不同的轻柴油中添加600μg/g的CNC-SO,柴油的冷滤点降低了7℃。
Citric acid -neopentylene glycol -citric acid （CNC） claw molecule was synthesized from neopentylene glycol and citric acid. The obtained CNC further reacted with stearic acid and octadecyl alcohol by esterification to form citric acid - neopentylene glycol - citric acid - stearic acid - octadecyl alcohol （CNC - SO） claw large - molecule. It was used as fluidity improver of diesel oil at low temperature. The obtained CNC and CNC -SO were characterized by means of elemental analysis, IR and 1H NMR. Molecular formulae of CNC and CNC - SO are C17 H24 O14 and C107 H202 O15, respectively. Cold filter plugging point and freezing point of diesel oil with CNC - SO were measured. CNC -SO can be dissolved in nonpolar organic solvent but not in water. When CNC -SO content in light diesel oil is 600μg/g, the cold filter plugging point of the light diesel oil can be lowered for 7℃, so its fluidity at low temperature can be significantly improved.
出处
《石油化工》
EI
CAS
CSCD
北大核心
2007年第9期924-929,共6页
Petrochemical Technology
基金
辽宁省教育厅高等学校科学研究基金项目(2005329)
关键词
新戊二醇
柠檬酸
硬酯酸
十八醇
爪形分子
低温流动性改进剂
冷滤点
柴油
citric acid
neopentylene glycol
stearic acid
octadecyl alcohol
claw molecule
lowtemperature flow improver
cold filter plugging point
diesel oil
