四嗪

In this Ph. D. dissertation, reverse microemulsion method was fully used infabricating and modifying polyacrylamide with functional and high-relative moleculeweight. The copolymerization of 2-acrylamide-2-methylpxopanesulfonic acid, fluorescent monomer 4-methoxy-N-(2-N\', N\'-dimethylamino ethyl)naphthalimide alkyl chloride quaternary ammonium salt, fluorescentmonomer 4-(N\'-methyl-1-piperazinylallyl)-N-butyl-naphthalimide chloride quaternaryammonium salt, Cationic monomer dimethylethylammonium bromide and hydrophobical monomer octadecylacrylate with acrylamide and properties of the copolymers werestudied. The interaction between five polymers and Al_2O_3(012) crystal surface have beensimulated by Materials Studio 3.0 program package, binding energies and non-bondinteraction energies and deformation energies have also been acquired.

本文以制备具有较高相对分子质量和功能型PAM为研究目的，将反相微乳液法运用到其制备及改性的有关环节，通过反相微乳液聚合工艺，将几种改性功能单体2-丙烯酰胺基-2-甲基-丙磺酸、荧光单体2-(4-甲氧基-1，8-萘二甲酰亚胺基)-乙基二甲基烯丙基氯化铵、荧光单体4-(N'-甲基-1-哌嗪基)-N-丁基-1，8-萘烯丙氯季铵盐、阳离子单体丙烯酰氧乙基-二甲基-乙基溴化铵和疏水单体丙烯酸十八酯与AM共聚，制备AMPS改性PAM、荧光示踪型PAM、阳离子单体DMB改性PAM和OA改性PAM等四类不同功能单体改性PAM，并研究其应用性能。

The effect of components including tetracholrophthalic acid, phthalazine and antifoggant with tribromomethyl sulfone groups on photographic properties of FTG materials was investigated in different pH, using polyvinyl alcohol as a hydrophilic binder, in situ formed AgBr as light sensitive component.

本文以水性聚乙烯醇为粘合剂，原位法合成的AgBr作为光敏元，考察了组分四氯邻苯二甲酸、酞嗪以及三溴甲基砜类防灰雾剂在体系不同pH值时对PTG材料感光性能的影响。

The pyrrole, oxazoles, pyridinones, quinolines, dibenzodiazepines, tetrahydrobenzoxazines and tetronic acids have been prepared from enaminones.

吡咯、唑烷、嘧啶酮、喹啉、二苯并二氮杂环类、四氢苯并噁嗪酮和特窗酸等都可以由烯胺酮类化合物制得。

A phosphorus-containing triazine oligomer was synthesized from triethyl phosphite, cyanuric chloride ,pentaerythritol and morpholine through three steps.

以亚磷酸三乙酯、三聚氰氯、季戊四醇和吗啉为原料，经3步反应合成了含磷三嗪环低聚物，考察了反应条件对中间体及产物收率的影响，对中间体及产物的结构和热性能进行了表征。

In this study, three model compounds of urea-formaldehyde resin, such as methylene diurea, Uron and tetrahydro-5-ethyl-2(1)-s-triazone, were synthesized.

本工作合成了脲醛树脂模型化合物亚甲基二脲、Uron和5-乙基-2(1)-s-四氢三嗪酮，并测定了它们在pH=4和80℃温度下的水解率。

They found that combining a thiazide diuretic with a "potassium-sparing" drug to treat hypertension reduced both sudden cardiac death and total coronary mortality by 40 percent.

他们发现，结合噻嗪利尿剂的&钾保留&药物治疗高血压病既降低心脏性猝死和冠心病的死亡率占了百分之四十。

He notes that gien that there are about 20 million patients on thiazide diuretics and an almost equal number on beta blockers, the increased risk of diabetes with these drugs translates into 250 000 cases of new-onset diabetes, accounting for about a quarter of the new cases of diabetes occurring eery year in the US.

他提到，现在有大约2千万患者使用噻嗪类利尿剂，2千万患者在使用β阻滞剂，由于这些药物可能引起糖尿病的风险，将会导致25万例糖尿病患者，几乎是美国每年新增糖尿病患者中的四分之一。

A novel hydroxyl terminated aminosilicone oil was synthesized using octamethylcyclo tetrasiloxane (D4) and the hydrolysis product of γ-piperazinepropylmethyldimethoxysilane (HD-110) as raw material and potassium hydrate as catalyst.

以八甲基环四硅氧烷(D4)、γ-哌嗪基丙基甲基二甲氧基硅烷(HD-110)水解物为原料，在氢氧化钾催化下，制备了羟基封端的新型氨基硅油。

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。