实验原油为胜利某油田高胶质(47.99%)高沥青质(9.13%)、凝点18℃的脱水脱气特稠油,3.4s-1下30℃粘度3.6×105mPa·s,50℃粘度1.6×104mPa·s,给出了粘温曲线。稠油乳化降粘实验条件如下:油水体积比7∶3,温度50℃,水相...实验原油为胜利某油田高胶质(47.99%)高沥青质(9.13%)、凝点18℃的脱水脱气特稠油,3.4s-1下30℃粘度3.6×105mPa·s,50℃粘度1.6×104mPa·s,给出了粘温曲线。稠油乳化降粘实验条件如下:油水体积比7∶3,温度50℃,水相中烷基酚聚氧乙烯聚氧丙烯醇醚浓度5g/L。实验结果表明:作为稠油乳化降粘剂,该嵌段聚醚在烷基链长为C8～C18时均可使用,C8～C12时效果较好,C9的效果最好,形成的稠油乳状液粘度280mPa·s,稳定时间240min;壬基酚聚氧乙烯聚氧丙烯醇醚(EP EO PO)中EO加成数占EO+PO加成数的50%～95%时,乳状液粘度小于400mPa·s;用Davies法计算的HLB值在13～17时,使用4g/LEP EO PO形成的乳状液粘度小于300mPa·s;在水相中有2.0×104mg/LCa2++Mg2+存在时该乳化降粘剂可耐浓度≤2.0×105mg/L的NaCl;在有8.0×104NaCl和2.0×104mg/LCa2++Mg2+存在下,温度从35℃升高到80℃时,乳状液粘度和稳定时间均下降,90℃时乳状液发生反相,EP EO PO的使用温度为35～80℃。图4表3参4。展开更多
合成了一种具有深的HOMO(-6.15 e V)分子轨道和高三线态能级(T_1,2.82 e V)的新型化合物10-(2-螺-9,9'-氧杂蒽芴基)吩噻嗪(SFXPz)。因其宽的能带结构(E_g,4.22 e V)和深的HOMO能级而有望制备高效蓝色有机电致磷光器件。热重分析和...合成了一种具有深的HOMO(-6.15 e V)分子轨道和高三线态能级(T_1,2.82 e V)的新型化合物10-(2-螺-9,9'-氧杂蒽芴基)吩噻嗪(SFXPz)。因其宽的能带结构(E_g,4.22 e V)和深的HOMO能级而有望制备高效蓝色有机电致磷光器件。热重分析和差热扫描曲线表明,该化合物具有良好的热稳定性(T_d,259℃)和高的形态稳定性(T_g,206℃)。完全相互分离的HOMO和LUMO轨道有利于阻止分子内能量反转。SFXPz的紫外吸收峰分别位于230,260,292和310 nm左右;其荧光光谱两个发射峰分别位于311,324 nm左右。此外,该化合物的分子结构经LC-MS、~1H NMR和^(13)C NMR进行了详细表征。展开更多
Triarylboron compounds are significant optoelectronic materials due to their excellent emissive and electron-transport properties,and could be applied in organic light-emitting diodes as emissive and/or electron-trans...Triarylboron compounds are significant optoelectronic materials due to their excellent emissive and electron-transport properties,and could be applied in organic light-emitting diodes as emissive and/or electron-transport layers.Triarylboron compounds have vacant pπ orbital and have received increasing interest as fluoride ion and cyanide ion sensors utilizing specific Lewis acid-base interaction.This review summarizes their structural characteristics,optical properties and applications in chemosensors for anions and optoelectronic devices developed in recent years and discusses the problems and prospects.展开更多
文摘实验原油为胜利某油田高胶质(47.99%)高沥青质(9.13%)、凝点18℃的脱水脱气特稠油,3.4s-1下30℃粘度3.6×105mPa·s,50℃粘度1.6×104mPa·s,给出了粘温曲线。稠油乳化降粘实验条件如下:油水体积比7∶3,温度50℃,水相中烷基酚聚氧乙烯聚氧丙烯醇醚浓度5g/L。实验结果表明:作为稠油乳化降粘剂,该嵌段聚醚在烷基链长为C8～C18时均可使用,C8～C12时效果较好,C9的效果最好,形成的稠油乳状液粘度280mPa·s,稳定时间240min;壬基酚聚氧乙烯聚氧丙烯醇醚(EP EO PO)中EO加成数占EO+PO加成数的50%～95%时,乳状液粘度小于400mPa·s;用Davies法计算的HLB值在13～17时,使用4g/LEP EO PO形成的乳状液粘度小于300mPa·s;在水相中有2.0×104mg/LCa2++Mg2+存在时该乳化降粘剂可耐浓度≤2.0×105mg/L的NaCl;在有8.0×104NaCl和2.0×104mg/LCa2++Mg2+存在下,温度从35℃升高到80℃时,乳状液粘度和稳定时间均下降,90℃时乳状液发生反相,EP EO PO的使用温度为35～80℃。图4表3参4。
文摘合成了一种具有深的HOMO(-6.15 e V)分子轨道和高三线态能级(T_1,2.82 e V)的新型化合物10-(2-螺-9,9'-氧杂蒽芴基)吩噻嗪(SFXPz)。因其宽的能带结构(E_g,4.22 e V)和深的HOMO能级而有望制备高效蓝色有机电致磷光器件。热重分析和差热扫描曲线表明,该化合物具有良好的热稳定性(T_d,259℃)和高的形态稳定性(T_g,206℃)。完全相互分离的HOMO和LUMO轨道有利于阻止分子内能量反转。SFXPz的紫外吸收峰分别位于230,260,292和310 nm左右;其荧光光谱两个发射峰分别位于311,324 nm左右。此外,该化合物的分子结构经LC-MS、~1H NMR和^(13)C NMR进行了详细表征。
基金supported by the National Basic Research Program of China (973 Program, 2009CB930601)the National Natural Science Foundation of China (50803028, 20804019, 20774043 & 60976019)+6 种基金Program for New Century Excellent Talents in University (NCET-07-0446)Natural Science Foundation of Jiangsu Province of China (BK2009427)Natural Science Fund for Colleges and Universities in Jiangsu Province (08KJD430017)Scientific and Technological Innovation Teams of Colleges and Universities in Jiangsu Province (TJ207035)Scientific and Technological Activities for Returned Personnel in Nanjing City (NJ209001 & TJ208027)Nanjing University of Posts and Telecommunications (NY208045 & NY207161)Program for Postgraduates Research Innovation of Colleges and Universities in Jiangsu Province (CX09S_011Z)
文摘Triarylboron compounds are significant optoelectronic materials due to their excellent emissive and electron-transport properties,and could be applied in organic light-emitting diodes as emissive and/or electron-transport layers.Triarylboron compounds have vacant pπ orbital and have received increasing interest as fluoride ion and cyanide ion sensors utilizing specific Lewis acid-base interaction.This review summarizes their structural characteristics,optical properties and applications in chemosensors for anions and optoelectronic devices developed in recent years and discusses the problems and prospects.
