查询词典 patho-amine

The synthetic technologies of three hindered amine light stabilizers were established, the reason for the insoluble side products formed in the production of polymerized hindered amine light stabilizers were studied, and a series of novel hindered amine light stabilizers with antibacterial properties were designed and synthesized in this present paper.1. Based on the investigation of the transesterification between dimethyl sebacate and 1,2,2,6,6-pentamethyl-4-piperinol, the synthetic technologies of Tinuvin292 and Tinuvin 765 were established. The two kinds of hindered amine light stabilizers were obtained in the yield of 93.3% and 92.4% respectively and qualified as the advanced level of the kindred overseas products.2. The synthetic technology of Tinuvin123 was studied and established.

本文研究建立了三个受阻胺类光稳定剂的合成工艺，探索了聚合型受阻胺类光稳定剂生产过程中不溶性副产物产生的原因，并设计、合成了一系列具有抑菌活性的新型受阻胺类光稳定剂。1、在研究癸二酸二甲酯与1，2，2，6，6-五甲基哌啶醇的酯交换反应的基础上，建立了受阻胺类光稳定剂Tinuvin292、Tinuvin765的合成工艺，分别以93.3%和92.4%的收率得到了光稳定剂Tinuvin292、Tinuvin765，所得产品质量达到了国外同类产品的水平。2、研究建立了受阻胺类光稳定剂Tinuvin123的合成工艺。

The results show that methyl group strengthens the electrostatic attractions, but reduces the H-bonds effect, while benzyl group can make both electrostatic and H-bond effects strong. The theoretical results are identical with the results of the collectors flotation tests. Collecting ability of the quaternary amine salts is better than that of dodecylamine and dodecyl bimethyl amine. The quaternary amine salt containing benzyl group performs best, and it is little affected by pH value. Substitution of N-containing polar group in amine collectors can impact the aluminosulicate minerals flotation.

研究结果表明：甲基的取代可增强阳离子的静电作用能力，同时，削弱它与矿物表面之间的氢键作用；苄基的取代不仅增强药剂的静电效应，而且增加氢键的结合能力；理论分析结果与浮选试验结果一致，季铵盐的浮选能力较伯胺与叔胺的强，连有苄基的季铵盐对铝硅酸盐矿物的捕收能力最强，且受pH值影响小。

Rich vitamin C still is contained in fruit vinegar, vitamin C is a kind of powerful antioxidant, can prevent cellular canceration and cellular consenescence, still can prevent strong carcinogenic substance inferior the saltpetre amine synthesis inside body, make inferior of saltpetre amine decompose, make inferior saltpetre amine drops in the content inside body, protective airframe is avoided suffer enroach on, prevent the happening of the cancer such as cancer of cancer of the stomach, esophagus.

果醋中还含有丰富的维生素C，维生素C是一种强大的抗氧化剂，能防止细胞癌变和细胞衰老，还可阻止强致癌物亚硝胺在体内的合成，促使亚硝胺的分解，使亚硝胺在体内的含量下降，保护机体免受侵害，防止胃癌。食道癌等癌症的发生。

Quinazolin-4(3H)-ones(1) were conveniently synthesized from anthranilic acids and amidines,which could be chloridized with POCl_3 to obtain 4-chloroquinazolines (2).The reaction of 2 and 1H-pyrazol-3-amine would give two types of products.In the presence of acid or base,the C-N bond would be formed between the 4-position carbon of 2 and the NH_2 of 1H-pyrazol-3-amine.While the C-N bond between the 4-position carbon of 2 and the NH of 1H-pyrazol-3-amine would be formed when Pd catalyst was utilized.

以邻氨基苯甲酸类化合物和脒为原料，可方便地获得喹唑啉-4(3H)-酮类产物(1)，1经POCl_3氯化可到4-氯代喹唑啉化合物(2)。2与3-氨基-1H-吡唑化合物反应可得到两种类型的产物，在酸、碱条件下2的4位碳和3-氨基-1H-吡唑化合物的NH_2发生C-N成键反应；在Pd催化条件下，2的4位碳则和3-氨基-1H-吡唑化合物的环内NH发生C-N成键反应。

We have presented some important evidences to the antiknocking mechanisms of aromatic amine through investigating the reactions of aromatic amine and peroxide on the premise of analyzing the electrochemical properties of aromatic amine. As a result, the relationship of antidetonating quality and electrochemical properties has been discussed.

本文在分析苯胺类化合物电化学性质的基础上，通过研究苯胺类化合物与过氧化氢的作用，为芳香胺抗爆机理的研究提供了重要依据，并由此探讨抗爆剂的抗爆性与电化学性质的关系。

In the three systems, system realizes the crosslinking of PVC bases on the peroxide crosslinking mechanism, the tensile strength of crosslinked PVC has been improved somewhat, the IR spectrum of gel demonstrates that there are characteristic absorption peaks of n-alcohol that belongs to ethanol amine and benzenoid group. From the analysis of gel structure , deduces that the mechanism of crosslinking reaction: under the initiations of peroxide and high temperature, PVC yields macromolecules free radicals, at the same time , styrene"s polymerization and grafting onto PVC takes place, at last the system forms crosslinking structure through coupling between radicals; confirms that triethanol amine can absorb HC1 produced by degradation of PVC, so improves the crosslinking efficiency of peroxide, decreases the HCl"s promotion for PVC"s degradation; deduces that triethanol amine can activate the PVC macromolecules and prolong the free radicals" life-time of PVC macromolecules; the effect to the PVC macromolecule makes styrenes graft reaction easy, and thus improves the crosslinking efficiency.

三种体系中三乙醇胺/过氧化二异丙苯/苯乙烯体系基于过氧化物交联机理实现了聚氯乙烯的交联，聚氯乙烯交联后拉伸强度有一定提高，凝胶红外光谱分析证实了凝胶结构中含有乙醇胺的伯醇基团特征吸收和苯环的特征吸收，由凝胶结构分析，推断出交联反应的机理：聚氯乙烯在过氧化物和热作用下产生大分子自由基，苯乙烯在过氧化物和大分子自由基的作用下发生聚合和接枝反应，最终通过自由基之间的偶合产生交联；证实三乙醇胺可以吸收聚氯乙烯分解产生的HCl，提高了过氧化物的交联效率，消弱了HCl对聚氯乙烯降解的促进作用；推断三乙醇胺可以活化聚氯乙烯大分子并有可能使聚氯乙烯大分子自由基存在的时间得以延长，对聚氯乙烯大分子的作用使苯乙烯的接枝反应易于发生，从而提高了交联效率。

The photochemical degradation of four typical fatty amine flotation collectors, decyl propyl ether amine, dodecyl propyl ether amine, laurylamine, and stearylamine, in water was studied.

对水体中脂肪胺阳离子浮选捕收剂（癸烷基丙基醚胺、十二烷基丙基醚胺、十二胺和十八胺）的降解方法与效果进行了研究。

The IR spectra of wastewater simulated with two typical fatty amine flotation collectors of decyl propyl ether amine and stearylamine were studied and the mechanism of degradation of fatty amine flotation collectors by the UV/H2O2/air oxidation method was discussed.

测定了十二烷基丙基醚胺和十八胺两种典型脂肪胺浮选捕收剂模拟废水降解前后的红外吸收谱图，初步探讨了UV/H2O2/air光化学氧化法处理脂肪胺浮选捕收剂模拟废水的降解机理。

The famciclovir was synthesized from purine by a series of steps by Acylation, Decarboxylation, Reduction ,and so on; Derivatives of these intermediates is described from the 6-chloro- 9H- purin-2-amine as raw materials in different conditions when the iodine and bromide were synthesized with the addition of two intermediate 6-bromo-9H-purin-2-amine and 6-iodo-9H-purin-2-amine; There is elaborated from the main part of a acetophenone, urineaminohydrochloride, phenylhydrazine, ethyl acetoacetate as raw material through a series of reactions to synthetic 3-phenyl-4-formylphenyl pyrazole and 5-chloro-3-methyl-1-phenyl-1H-pyrazole-4-aldehyde two pyrazole aldehyde, and then with 2-amino-6-chlorine-9-(2-methicillin-oxo-co-methyl-4-yl) purine reaction of the two new pyrazole purine Schiff bases.

本论文主是采用以鸟嘌呤为原料，经过一系列的酰基化，脱羧，还原等反应作用下最终得到了产物2-氨基-9-(4-乙酰氧基-3-乙酰氧基甲基丁基)嘌呤；其中的中间体衍生物主要是阐述从以2-氨基-6-氯鸟嘌呤为原料通过在不同的条件下进行溴代与碘代分别合成了另外两种中间体2-氨基-6-溴鸟嘌呤及2-氨基-6-碘鸟嘌呤；还有一部分主要是阐述从以苯乙酮，盐酸氨基脲，苯肼，乙酰乙酸乙酯为原料通过一系列的反应先合成3-苯基-4-醛基吡唑及5-氯-3-甲基-1-苯基-1H-吡唑-4-甲醛这两个吡唑醛，然后再与2-氨基-6-氯-9-(2-甲氧羰基丁酸甲酯-4-基)嘌呤反应得到了两个新型的吡唑嘌呤席夫碱

A series of pyrroles were synthesized from primary amine(including fatty amine and aromatic amine)and acetonyl-acetone through a Paal-Knorr reaction catalyzed by formic acid at room temperature under solvent-free conditions.

以甲酸为催化剂，无需使用任何溶剂，在室温条件下，多种伯胺与2，5-己二酮发生Paal-Knorr缩合反应，生成相应的吡咯衍生物。

Although translator has turned from being a crystal ball by which the original culture can unrestrainedly penetrate to another crystal ball by which the target culture can freely traverse, the translator's personal embodiment, in the process of cognitive act, are still absent in translation studies. Translators are still subjects without body or simply disembodied subjects.

译者虽然由原语文化可以自由穿透的玻璃球变成了译语文化可以自由穿越的玻璃球，但译者认知过程中的个体体验在翻译研究中依然缺席，译者依然仅仅是一个没有躯体体验的主体。

Chillingly, he claimed our technology is 'not nearly as sophisticated' as theirs and "had they been hostile", he warned 'we would be been gone by now'.

令人毛骨悚然的，他声称我们的技术是'并不那么复杂，像他们一样，和"如果他们敌意"，他警告说，'我们将现在已经过去了。