氟氯烃和氟溴烃国际会议通知

由中国化学会主办的氟氯烃和氟溴烃国际会议将于1994年8月8日至1994年8月10日在上海举行。为及早筹备,现将有关事项通知如下: 一、会议组委会成员: 主席:黄维垣教授委员:prof.D.J.Burton(Iowa,USA);prof.A.Feiring(Wilmington,USA);prof.A.Haas(Bochum,Gerumany);prof.胡昌明(上海,中国);     

Preface The Sino-US chemistry professors conference:history and outlook

On June 29–30, 2009, the Fifth Sino-US Chemistry Professors Conference, co-organized by Lanzhou University and the Chinese-American Chemistry & Chemical Biology Professors Association (CAPA, USA), was held in Lanzhou. About 150 professors from China, USA and other countries     

Synthesis and Antibacterial Activities of Pyran Annulated Heterocyclic Compounds

Two novel pyran annulated heterocyclic compounds(1 and 2) were synthesized and characterized via IR, 1H NMR and H RMS. The structure of compound 1 was verified by single-crystal X-ray diffraction. The in vitro antibacterial activities of the two compounds against Staphylococcus aureus(S. aureus ATCC 29213), methicillin-resistant S. aureus(MRSA XJ 75302), vancomycin-intermediate S. aureus(Mu50 ATCC 700699), and USA 300(Los Angeles County clone, LAC) were evaluated by observing the minimum inhibitory concentration.     

人静脉血浆中四种不饱和脂肪酸的气相色谱分析

脂肪酸的测定多采用气相色谱法,但有关人血浆中脂肪酸浓度的报道相差很大,而且某些酯化条件也不易控制。我们参考氢氧化钾甲醇甲酯化[1,2]和BF3甲醇甲酯化[3]方法,并进行了适当综合和改进,在甲酯化前加入苯溶解,酯化温度控制在55℃,使用氢氧化钾甲醇和BF3甲醇进行两步甲酯化。结果表明此法操作方便,结果可信。1　实验部分1.1　仪器与试剂　　仪器:HP5890A气相色谱仪,7525型氢气发生器(Packard,USA),HP3396A积分仪。毛细管柱:Ultra2(25m×0 32mm×0 52μm,HP,USA)。火焰离子化检测器(FID)。载气(N2)流速20mL/min。分流进样,分…     

四甲基环戊二烯基苯氧基二氯化钛衍生物的合成及催化烯烃聚合研究

4-R1-6-R-2-Me4CpH—PhOH[R1=^tBu,R=^tBu(1);R1=H,R=^tBu(2),Ph(3),Me(4)]经双三甲基硅基化后与TiCl4反应,合成了4种限制几何构型茂金属催化剂4-R1-6-R-2-Me4CpH-PhOTiCl2[R1=^tBu,R=^tBu(5);R1=H,R=^tBu(6),Ph(7),Me(8)]。合成产率有较大提高．这些茂金属化合物经过^tBu3Al和Ph3C^ B(C6F5)4^-活化后对乙烯聚合有很好的催化活性,并生成乙基支化聚乙烯．考察了催化剂结构与活性的关系以及聚合反应条件对催化剂性能的影响。并对聚乙烯样品进行了表征．     

银纳米修饰电极的制备及电化学行为

金属纳米粒子由于其小的体积和大的比表面积而具有独特的电子、光学和异相催化特性,是目前表面纳米工程及功能化纳米结构制备的一种理想研究对象[1]。银纳米粒子可广泛应用于催化剂材料、电池的电极材料、低温导热材料和导电材料等,成为近年来人们研究的热点[2,3]。在电化学方面,银纳米粒子具有比其他纳米粒子更为优异的导电性能和电催化性能。因此,研究银纳米粒子修饰电极有重要的应用价值和前景[4]。1实验部分1.1仪器CHI660电化学工作站(USA);TU-1901型双光束紫外可见分光光度计(北京普析通用仪器公司);KQ-100型超声清洗器(昆山市超声…     

Preface The Sixth Sino-US Chemistry Professors Conference: A catalyst for interaction and collaboration

With the continuation of the tradition,the Sixth Sino-US Chemistry Professors Conference,co-organized by Zhejiang University (Professor YanGuang Wang as the chair) and CAPA (The Chinese-American Chemistry & Chemical Biology Professors Association,USA) (Professor Qian Wang     

Preface

The seventh Sino-US Chemistry Professors Conference,co-organized by Guizhou University (Professor Baoan Song as the chairman) and CAPA (The Chinese-American Chemistry & Chemical Biology Professors Association, USA; Professor Chuan He as the co-chairman) was suc-     

PREFACE

The 6~(th)International Symposium on Polymer Physics was held in Dali,China,from June 1-5,2004.Thissymposium was orzanized bv The State Kev Laboratorv of Polvmer Physics and Chemistry,China,TheUniversity of Akron,USA,The Tohoku University,Japan,and The Institute Of Charles Sadron,France.It wassponsored by the National Natural Science Foundation of China,The Chinese Academy of Sciences(CAS),TheInstitute of Chemistry,CAS,The Changchun Institute of Applied Chemistry,CAS,and The Polymer Division,Chinese Chemical Society     

PREFACE

The 8~(th) International Symposium on Polymer Physics was held in Xiamen,China,in the period of June 8-12, 2008.This symposium was organized by The State Key Laboratory of Polymer Physics and Chemistry,China, MPI for Polymer Research,Germany,The University of Massachusetts,USA,and The Hokkaido University, Japan.It was sponsored by the National Natural Science Foundation of China,The Chinese Academy of Sciences (CAS),Institute of Chemistry,CAS,Changchun Institute of Applied Chemistry,CAS,Polymer Division,...