二乙胺

Although CdS and NiSe belonged to the same crystal system, they had a great difference in the morphology of products produced in ethylenediamine by a solvothermal process. By making a crytallographic comparison between CdS and NiSe, I thought that fourcoordinated crystals were more prone to grow one-dimensionally in the stacking direction of tetrahedrons. This hypothesis could also be embodied in many examples.

硫化镉和硒化镍的晶体结构都为六方晶系，但在以乙二胺为溶剂的溶剂热条件下合成出的产物形貌有很大的差别，我们通过对两类晶体结构的结晶学比较，我们认为4配位的晶体更趋向于生成一维纳米材料，并提出生长方向即为四面体堆积方向，这一假设也能得到许多例子的证实。

Comb-shaped copolymer of polycarboxylate containing carboxyl,sulfonic groups(-SO3M),polyethylene glycol(-OC2H4-) was synthesized by monomers of sodium 2-acrylamido-2-methylpropane sulphonate,acrylic acid,polyethylene glycol monoester acrylate under certain conditions.

本文通过2-丙烯酰胺-2甲基丙基磺酸钠与丙烯酸、聚乙二醇单丙烯酸酯在一定条件下发生聚合反应合成含有羧基、磺酸基(—SO3M)、聚氧乙烯链(—OC2H4—)等侧链的高性能减水剂PC。

The morphologies formed were characterized by SEM and DLS methods, and spherical particles with various sizes were observed.5. To obtain a amphiphilic dumbbell-shaped copolymer, we successfully synthesized dendritic-linear-dendritic triblock copolymers composed of linear polystyrene and poly dendrons.

树枝状共聚物最外层PSt-PNAS链段利用乙二胺和NAS活性酯的取代反应交联，同时，中间的聚丙交酯段被降解，得到纳米空心球，用SEM和DLS进行观测和表征。5。

In this thermodynamic study, the minimum requirements in molar fraction of the solvents (x3) on the azeotropic feed plate are: 0.20 for N,N-dimethylformamide, 0.36 for 2-ethoxyethanol, 0.40 for 1-pentanol and 0.66 for butyl propionate,.

在这个热力学研究中，共沸混合物喂料盘上各溶剂摩尔分数最小值(x3)分别是：N，N-二甲基甲酰胺：0.20；2-乙氧基乙醇：0.36；1-戊醇：0.40；丙酸丁酯：0.66。

These catalysts were found to have good activity and reusability in the Heck vinylation of aryl iodides and acrylate, among which the ethylenediamine modified resin supported Pd(0) catalyst kept a high activity at the 17th run at 90℃.

结果表明，该类催化剂具有良好的催化活性和重复使用性能，其中用乙二胺功能化树脂负载的Pd(0)催化剂在90℃重复使用17次时能保持良好的催化活性。

Using tellurium power and corresponding simple metal salts as reactants, we have prepared a series of nanocrystalline metal tellurides (Cu〓Te〓, CoTe〓, NiTe〓, SnTe, Ag〓Te, CdTe, PbTe) in ethylenediamine system at low temperature (140-180℃).

通过乙二胺体系的溶剂热过程，以碲粉为碲源，从简单金属盐出发，在较低的温度下（140-180℃）成功地制备了一系列纳米金属碲化物(Cu〓Te〓、CoTe〓、NiTe〓、SnTe、Ag〓Te、CdTe、PbTe)。

Acetone, cyclohexanone, formaldehyde and ethylene diamine were adopted to synthetise HLZ corrosion inhibitor by means of Mannich reaction.Then LZ-620 salts corrosion inhibitor was synthetised on HLZ condensating chloroacetic acid.

针对盐类腐蚀采用丙酮、环酮A、甲醛、乙二胺通过曼尼希反应生成缓蚀剂后再与氯乙酸缩合生成盐类缓蚀剂(LZ-620)。

In this thesis, nano-scale particles of metals, metal sulfides, selenides, oxides and nano-composites of metals/polymer, semiconductor sulfides/polymer have been successfully prepared by γ-ray irradiation technique in sorts of systems including water system, alcohol system, ethylenediamine system, microemulsion and emulsion system at room temperature and under ambient pressure. The possible formation mechanisms of nano-scale materials were suggested, and some factors of affecting the formation of nano-materials were studied.

本论文使用〓Co-γ射线辐射技术，在常温常压下分别于水体系、乙醇体系、乙二胺体系、微乳液和乳液体系中，成功地制备了纳米金属、硫化物、硒化物、氧化物以及金属／聚合物、半导体硫化物／聚合物纳米复合材料，并初步探讨了纳米材料形成的可能机理和影响因素。

Three methods for the preparation of 1,2,4-trizolone~5 are provided. 22 compounds are prepared. 3, 4-disubstituted 1,2,4-trizolone-5 is prepared by reacting amide with ethyl hydrazine-fornate at 110癈 for 3h in the presence of phosphorus oxychloride, following neutralization and cyclization reaction, giving to 74.5 % yields,which is 30% more than the literature value.

以三氯氧磷为缩合剂，使酰胺和肼基甲酸乙酯在110℃反应3h，经碱中和、环化反应，合成3，4-二取代-1，2，4-三唑酮-5，两步反应总产率达74.5％，与文献报道值相比，高出了30％以上，在三唑酮类衍生物的合成方法中具有很大的突破性。

The CNx nanotubes films were fabricated by pyrolyzing ethylenediamine on Ni substrates at 860℃.

以乙二胺为前驱液，采用高温热解法，860℃下在镍基底表面生长CNx纳米管薄膜。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。