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三乙胺

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The aqueous polyurethane prepolymer was prepared through step-growth polymerization of diphenylmethane diisocyanate with polyester glycol and dimethylol propionic acid, which was then neutralized by triethylamine to form the stable transparent aqueous polyurethane dispersion.

以二苯基甲烷二异氰酸酯、聚酯二醇、二羟甲基丙酸等为原料合成了水性聚氨酯预聚体,用三乙胺中和制备了水性聚氨酯的透明乳液。

The results showed that fumaric acid is most favorable to prepare MnO2 sol.

结果表明,富马酸是制备MnO2溶胶比较合适的还原剂,Span80和Tween80复配乳化剂的效果最好,在油∶溶胶=4∶1,乳状液∶三乙胺=8∶3的条件下制得的纳米MnO2微粒,其形貌为规整的球体,粒径均匀,几乎为单分散性。

For a dye regenerated system composed of eosin ethyl ester iodonium salt (EOEtIPh2) triethylamine, the efficiency of sensitization is 4 times higher than of single system EOEtIPh2, at mean time the number of active radicals is also multiplicated and thus this system is of importance in practical application.

由乙基曙红碘翁盐/三乙胺组成的染料再生体系的染料敏化效率比单一体系高4倍左右,同时使活性自由基的数量增殖,这种体系在实际应用方面具有重要意义。

The result indicated that, gathers in advance the emulsion water resistance and mechanics performance which in the body preparation method the one-stage process obtains is good, but two steps obtain the emulsion stability is good; The neutralizaing agent triethylamine amount used should enable to achieve neutral between x-y, to gathers in advance the body disperser and the emulsion stability only then is advantageous; The water affinity chain extendor DMPA content to the emulsion viscosity, stable and the emulsion cellophane water resistance has the remarkable influence, its amount used general control between x-y; Hard section isocyanogen diethylene glycol dinitrate primary control paint film degree of hardness, module, anti-avulsion, wear-resisting and so on performance, the soft section low-molecular polymer polyols primary control paint film elasticity, hydrolisis performance and so on bears the low temperature and bears

结果表明,预聚体制备方法中一步法得到的乳液的耐水性和力学性能较好,而两步法得到的乳液的稳定性好;中和剂三乙胺的用量应使中和度达到x-y之间,对预聚体的分散和乳液的稳定性才有利;亲水扩链剂DMPA的含量对乳液的粘度、稳定性及乳液胶膜的耐水性有着显著的影响,其用量一般控制在x-y之间;硬段异氰酸酯主要控制涂膜的硬度、模量、抗撕裂、耐磨等性能,软段低聚物多元醇主要控制涂膜的弹性、耐低温和耐水解等性能

Gel-type cross-linked polystyrene-isocyanuric acid resin has been obtained by reaction of chloromethylated polystyrene with isocyanuric acid under the existence of triethylamine.

由氯甲基化低交联聚苯乙烯和异氰尿酸在三乙胺作用下反应,制得了凝胶型交联聚苯乙烯-异氰尿酸树脂,测定了该树脂对苯酚和间苯二酚在不同温度下的吸附等温线,依据Clapeyron-Clausius方程从吸附等温线计算出了吸附热,从热力学的角度论证了树脂是基于氢键键合和疏水作用而吸附苯酚和间苯二酚的。

Fourteen new pyrethroids containing isoxazole were designed and synthesized from 4-isopropyl-3-substituted phenyl-5-hydroxyl isoxazoles as major material, whose structures were also characterized by IR, 1H NMR and elemental analysis.

以4-异丙基-3-取代苯基-5-羟基异噁唑和3-苯氧基苄基溴为原料,三乙胺为缚酸剂,设计并合成了14个未见报道的4-异丙基-3-取代苯基-5-异噁唑基-(3'-苯氧基)苄基醚。通过红外光谱、核磁共振、元素分析等手段,确证了它们的化学结构。

The final product Rimonbant was then obtained in 64% yield via chlorination of the acid with oxalyl chloride followed by treatment of the resultant acyl chloride with 1-aminoperidine.

氯与1-氨啶在三乙胺存在下缩合生成目标产物利莫那班,产率64%。

The final product Rimonbant was then obtained in 64% yield via chlorination of the acid with oxalyl chloride followed by treatment of the resultant acyl chloride with 1-aminoperidine.

酰氯与1-氨哌啶在三乙胺存在下缩合生成目标产物利莫那班,产率64%。

Several aminated Fullerene derivatives were synthesized by the reaction of C〓 with phenylamine, diphenylamine and triethylamine etc., the phenomena of fragmentation and aggregation of the aminated Fullerene derivatives in UV laser desorption ionization mass spectrometer was observed, a few nitrogenous poly-Fullerene ions, such as C〓NH, C〓N〓H〓, C〓N〓H〓, C〓N〓H〓, C〓N〓H〓 etc.

对C〓富勒烯与苯胺、二苯胺、三乙胺等形成的加合物在紫外激光解吸电离作用下可以发生不同寻常的裂解和聚合现象进行了研究,认为其形成机理为:上述加合物在紫外激光解吸电离作用下,发生裂解产生C〓NH、C〓N及C〓等离子,然后它们之间发生聚合,形成如:C〓NH、C〓N〓H〓、C〓N〓H〓、C〓N〓H〓、C〓N〓H〓等含氮原子的聚富勒烯离子。

And through analyzing the stable configuration of photoactive compounds, the existence of triethylamine salt of diesterified product was thought to be the main factor that affects the solubility.

通过分析,确认二酯化产物三乙胺盐是影响感光剂溶解度的主要原因。

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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。

When I was in school, the rabbi explained everythingin the Bible two different ways.

当我上学的时候,老师解释《圣经》用两种不同的方法。