苯并

The results showed that the preoxidation of PPESK was a free radicals reaction,which was initiated by the decomposition of proton in aromatic ring and sulfone functional group and the removal of H_2O and SO_2.When the preoxidation temperature was above 460℃,the radical reaction was initiated by the decomposition of ketone functional group and the removal of CO_2.At last,the three-demensional cross-linking structure containing polyaromatic ether and biphenyl was formed.

研究表明，PPESK的预氧化过程是一个自由基反应过程，始终伴随着芳香环质子和砜基官能团的脱除引发的自由基交联反应，脱出H_2O与SO_2；当预氧化温度超过460℃后，随着反应的进行，由羰基官能团分解引发的自由基交联反应开始发生，脱出CO_2，并最终形成了含有大量聚芳醚和联苯结构的稳定的三维空间网状结构，进而完成PPESK由热塑性材料向热固性材料的转化。

A fragment of phthalate dioxygenase gene was successfully amplified from the genus of Delftia for the first time using a set of degenerate primers.

以一对简并引物，首次在该属中扩增出编码邻苯二甲酸双加氧酶的基因片段。

The solvent extraction of Am and Cm from picric acid solution by nitrobenzene solution of N, N, N', N'-tetraphenyl-3,6-diox'aoctane diamide was investigated and compared with the extraction of cerium, neodymium and europium.

本文研究了三甘酰双的硝基苯溶液从苦味酸溶液中萃取Am和Cm的性能，并与Ce，Nd和Eu的萃取进行了比较。

The interfacial surface and properties of glass fiber reinforced PET was studied by using Fouier transform infrared spectrometer scaning electron microscopy, dynamic viscoelastometer differential scattering calorimetry and mechanical measuring methods, the effects of coupling agent on the property of PET and its interfacial adhesion were examined.

用红外光谱分析、扫描电镜、粘弹谱仪、差示扫描量热法及力学性能测试方法，考察了玻璃纤维增强聚对苯二甲酸乙二醇酯的界面情况及力学性能等，并分析了玻璃纤维表面处理剂对PET树脂及其界面粘结性的影响。

The advantages and shortcomings of the synthetic routes and the catalysts are also commented. It is suggested that the development of heterogeneous catalysts should be the focus in the process for production of diphenyl carbonate.

并进一步对各工艺过程及所用催化剂的优缺点进行了评论，认为多相催化剂的开发是今后碳酸二苯酯合成研究的重点方向。

Using 2,4,6-〓 as phase-transfer catalyst, ten symmetrical azobenzene were prepared with a saturated solution of potassium ferricyanide in 2N aqueous potassium hydroxide and dichloromethane.

用2，4，6-三叔丁基苯酚为相转移催化剂，芳胺类化合物在饱和铁氰化钾的氢氧化钾溶液和二氯甲烷的两相转移催化下合成了10个对称取代偶氮苯，并对反应机理也做了合理的解释。

In this dissertation, two derivatives of aniline containing polyoxyethylene substituent m-phenylene diamino formyl alkylenediamine poly acetate and poly-3-aminobenzoate were designed and synthesized. And then, comb-shaped polyaniline grafted by PEO were prepared by chemical oxidation copolymerization. The structure of copolymers were characterized by FTIR, ultraviolet-visible spectrum, elemental analysis and TEM etc..

本文在设计并合成两种含聚氧乙烯取代基的苯胺衍生物——间苯二氨基甲酰己二氨基甲酸聚氧乙烯乙酸酯和3-聚氧化乙烯单甲醚基苯胺的基础上，采用化学氧化法将它们与苯胺进行共聚，制备出了聚氧乙烯接枝聚苯胺的梳型共聚物。

Experiment data of HCB desorption were simulated better by fast2slow two stage first2order kinetics model and dynamic parameters of HCB desorption were also calculated. Frap and Fslow , the fractions of contaminant present in the rapidly and slowly desorbing sediment compartment , were respectively 3716 % and 6214 %; krap and kslow , the rate constants of rapid and slow desorption , were 01066 9h - 1 and 01000 5h - 1 , respectively.

快、慢2 段一级动力学模型较好地拟合了六氯苯释放的实验数据，并得出了释放动力学参数：快速和慢速释放部分所占的质量分率Frap ， Fslow分别为3716 %和6214 %；快速和慢速释放速率常数krap ， kslow分别为01066 9h - 1和

2,4,4,trichloro-2,-hydroxydiphenylether(HD-244) is one of the most well-marked germicide and germ inhibitor.

中文摘要： 2，4，4'-三氯-2'-羟基二苯醚(HD-244)是市场畅销的一种杀菌剂。本文介绍了 HD-244 的三种合成工艺，并进行了比较。

An angry group of European and American miners met in Bendigo in 1854 and declared that a "general and unanimous rising should take place… for the purpose of driving the Chinese off the goldfield".

1854年，一伙愤怒的欧洲和美洲淘金者在苯迪戈注开会，并宣布"为了把华人赶出金矿，我们应该全面、全体一致地起来造反"。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。