A new bis(aroylacetylene) containing tfiazole and fluorene moieties is synthesized by click chemistry. Polycyclotrimerization of the monomer is catalyzed by piperidine in refluxed dioxane,furnishing a regioregular pol...A new bis(aroylacetylene) containing tfiazole and fluorene moieties is synthesized by click chemistry. Polycyclotrimerization of the monomer is catalyzed by piperidine in refluxed dioxane,furnishing a regioregular poly(aroylarylene) in a satisfactory yield.The hyperbranched structure of the polymer is characterized spectroscopically with satisfactory results.The polymer enjoys no metal detriment and is soluble in common organic solvents such as tetrahydrofuran (THF),chloroform,dichloromethane (DCM),and N,N-...展开更多
-Are You Stupid? - One day a college professor [教授] of psychology[心理学] asked his new college[学院] class. "Would everyone who thinks he or she is stupid please stand up?" After a minute or so of silence...-Are You Stupid? - One day a college professor [教授] of psychology[心理学] asked his new college[学院] class. "Would everyone who thinks he or she is stupid please stand up?" After a minute or so of silence, a young man stood up. "Well, hello there sir. So you actually think you're a moron[白痴]?" the professor asked. The kid replied, "No sir, I just didn't want to see you standing there all by yourself."展开更多
基金supported by the National Natural Science Foundation of China (Nos.20634020 and 50703033)the Ministry of Science & Technology (No.2009CB623605)+2 种基金the Research Grants Council of Hong Kong (Nos.603008,602707 and 602706)A.J.Q.acknowledges the support from the China Postdoctoral Science Foundation (No.20070420228)B.Z.T.thanks the support from the Cao Guangbiao Foundation of Zhejiang University.
文摘A new bis(aroylacetylene) containing tfiazole and fluorene moieties is synthesized by click chemistry. Polycyclotrimerization of the monomer is catalyzed by piperidine in refluxed dioxane,furnishing a regioregular poly(aroylarylene) in a satisfactory yield.The hyperbranched structure of the polymer is characterized spectroscopically with satisfactory results.The polymer enjoys no metal detriment and is soluble in common organic solvents such as tetrahydrofuran (THF),chloroform,dichloromethane (DCM),and N,N-...
文摘-Are You Stupid? - One day a college professor [教授] of psychology[心理学] asked his new college[学院] class. "Would everyone who thinks he or she is stupid please stand up?" After a minute or so of silence, a young man stood up. "Well, hello there sir. So you actually think you're a moron[白痴]?" the professor asked. The kid replied, "No sir, I just didn't want to see you standing there all by yourself."
文摘她想像的时尚包含过去和现在,混合祖先的传统与未来派的视觉;她对外形、颜色和制作进行显著的组合,为那些怀揣着梦想的女性提供独一无二的自我展现方式;她的作品得到了巴黎像大皇宫和蓬皮杜文化中心的赞誉和嘉奖——来自法国的 Nelly BICHE de BERE,这位在设计及时尚界公认为可以自行创造制作并具有多重魅力的女性,发掘女性身上最为绚丽迷人的气质。——"为实现梦想而生活"。
