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以三羟甲基丙烷三丙烯酸酯（TMPTA）和1-十二烯（DC）为单体，不使用任何乳化剂或分散稳定剂，通过沉淀聚合制备了高度单分散P（DC-TMPTA）的聚合物微球颗粒.以此聚合物微粒为Pickering稳定剂，不添加任何化学助剂，以乙醇-水混合介质在70℃下通过恒速振荡制得了单分散石蜡Pickering乳液.将该体系迅速降温至石蜡熔点之下，制得了窄分布的固体石蜡微球.研究了连续相水含量、振荡频率及稳定...
双阳离子表面活性剂DC—12的新合成法
表面活性剂 DC－12 还原开环反应 合成 阳离子
2009/11/11
提出了经咪唑啉中间体制备双阳离子表面活性剂ＤＣ－１２的一种新合成方法，并对咪唑啉还开环反应及ＤＣ－１２的其合成路线进行了讨论。
Main Flavonoids of Tilia argentea DESF. ex DC. Leaves
Flavonol glycosides Kaempferol 3,7-O-a-L-dirhamnoside Quercetin 3,7-O-a -L-dirhamnoside Lime Linden Tilia argentea Tiliaceae
2010/4/20
Kaempferol 3,7-O-a -L-dirhamnoside (I) and quercetin 3,7-O-a -L-dirhamnoside (II) were isolated from the leaves of Tilia argentea (Tiliaceae). The structure elucidation of the isolated compounds was p...
DC Conduction in Electrochemically Synthesized Polypyrrole Films
DC Conduction Electrochemically Synthesized Polypyrrole Films
2010/7/13
DC conductivity measurements were performed by modified four-probe rig on electrochemically synthesized polypyrrole films at a temperature range of -30oC to 120oC. Conductivity increased with temperat...