丙烷

Condensation product of amine and epoxychloropropane was used as additive in the traditional zincate based zinc electroplating process, and secondary brightener was added to improve deposit brightness as well.

传统锌酸盐镀锌工艺以有机胺和环氧氯丙烷的缩合物为添加剂，配合使用辅助光亮剂以提高镀层光亮度。

The result shows at the mild condition chain olefin that nCl7, polyethylene can be cracked into solutions of ethane, propane, butane, benzene and toluene and other small molecular compounds, polyethylene reacted fluids are mainly composed of a-olefin at the range 12 to 38, by which α-ωdiene, saturated hydrocarbon and aromatic hydrocarbon, anthracene, phenanthrene of albocarbon series are contained.

结果表明，在温和条件下可以将链状烷烃如正十七烷烃、聚乙烯通过微波及炭催化剂的作用，裂解成乙烯、丙烷、丁烷、苯、甲苯等溶剂及小分子化合物。聚乙烯反应液体产物以碳数在12~38范围的α-烯烃为主，也产生α-ω二烯、饱和烃及芳烃，芳烃主要有萘系列、葱、菲等。

The reaction of monoporphyrins having different functional groups with dibromopropane gave metalloporphyrin potassium trimer with two alkoxyl linkages(C144H104N12O8K16)and square array tetramer with the property to quench fluorescence.

利用合成带有混合取代基团的卟啉单体和二溴丙烷反应得到了具有荧光淬灭性质的线状卟啉三聚体C144H104N12O8K16和方阵式四聚体。

Catalytic aziridination and amidation reactions are two important reactions in organic synthesis and useful building blocks for organic synthesis, which make them attractive synthetic targets in their own right.

催化氮杂环丙烷化及酰胺化反应是有机合成中的两类重要反应，是有机合成之砌块，其合成方法是重要的研究课题。

Nonlinear optical organic materials have more advantages than inorganic materials. Based on the molecule design, a new D-π-A structure NLO chromophore molecule [4-nitro-4'-N,N-di aminoazobenzene] 3 with nitro, azobenzene and epoxy is synthesized.

以环氧氯丙烷、苯胺、对硝基偶氮苯胺为原料，设计并合成了一种具有推拉电子结构、含双环氧基的偶氮类有机非线性光学发色团分子4-硝基－4'-N，N-二缩水甘油氨基偶氮苯。

And thus, either one of the two geometrical isomers can be obtainedat will in high yield with high stercoselectivity,Two different stereoselectivities are displayed in thereactions of arsonium and telluronium benzylides with α,β-unsaturated esters and amides.

发现了苄基胂、碲叶立德在与α，β-不饱和酯、酰胺的环丙烷化反应中表现出不同的立体选择性，肉桂基胂、碲叶立德与α，β-不饱和酯反应时亦是如此。

The cDNA document of ACC oxidase gene of Citrus aurantium L. was cloned. By using the program of BLAST on NCBI GenBank database, the sequence presented a very high match with the ACC oxidase genes from other plants. The base sequence was analysed by using biology programe of DNAStar 5.0. 278 amino acids were coded by the base sequence and the base sequence had the same conserve region of ACC oxidase gene of many kinds of other plants. The base sequences comparability was more than 72% compared with those of many kinds of other plants. The amino acid sequences comparability was more than 70% compared with those of a lot of other plants.

克隆了酸橙1-氨基环丙烷－1-羟酸氧化酶基因cDNA片段，将片段序列在NCBI网站上进行同源性搜索，显示的皆为不同植物的ACC氧化酶基因，因而认为所克隆的片段就是酸橙ACC氧化酶基因；并运用DNAStar5.0软件进行序列分析，推导的氨基酸序列为278个残基；具有所有植物ACC氧化酶基因共有的保守区域；与多种植物的ACC氧化酶基因的核苷酸和氨基酸序列的同源性都在72%和70%以上。

A novel epoxy resin was obtained through the condensation reaction of the azomethine and epichlorohydrin in NaOH solution.

通过对羟基苯甲醛双缩对苯二胺席夫碱与环氧氯丙烷在NaOH液中缩合，合成一种新型环氧树脂。

Compared with thermal cracking of JP-10, the conversion ratio of the catalytic cracking in the temperature range from 500 to 650 ℃ is evidently enhanced. The predominant products of the catalytic cracking are methane, ethane, ethylene, propane, propylene, benzene and benzenoid hydrocarbons.

在500～650 ℃温度范围内，与热裂解相比，分子筛催化可显著提高裂解转化率，主要产物有甲烷、乙烷、乙烯、丙烷和丙烯，以及苯和苯的同系物等。

Three kinds of small molecular copper and zinc superoxide dismutase mimics were synthesized with N, N-bis (benzimidazol-2-ylmethyl) amine (N3), N, N-bis (benzimidazol-2-ylmethyl) methylamine(MN3) and N,N-bis (benzimidazol-2-ylmethyl) benzylamine(BN3) as ligands. The com-plexes were characterized by UV, IR and element analysis and the structures were proposed.

模拟铜一锌超氧化物歧化酶的活性中心，以二(2-苯并咪唑)丙烷为桥、二(2-苯并咪唑亚甲基)胺(N3)、二(2-苯并咪唑亚甲基)甲胺(MN3)及二(2-苯并咪唑亚甲基)苄胺(BN3)为配体合成了3种异双核的小分子模型化合物，并进行了紫外、红外表征及元素分析，推测了可能的结构。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。