查询词典 tertiary amine

A novel polymeric organic thermal stabilizer for PVC was designed and synthesized by acryloylthiourea grafting on polystyrene which was nitrified by HNO3 and then reducted by Sn powder to amine.

以经部分硝化和还原的低分子量聚苯乙烯为母链，利用其胺基和丙烯酰基异硫氰酸酯加成，合成了一种新型有机高分子型PVC 热稳定剂——丙烯酰基硫脲接枝聚苯乙烯，其结构经IR和元素分析表征。

The tail group of cysteamine containing amine moiety can easily protonize in acidic conditions. Heterpolyanions was successfully immobilized on such a positive-charged surface. By using quartinized conducting polymer containing osimium-bipyridine complexes, a sandwiching multilayers has been fabricated.

利用氨端基自组装膜在酸性条件下荷正电的特点，成功地将荷负电的杂多酸分子固定于其上，并在此基础上，通过荷正电的季胺化聚合物组装了多层的杂多酸修饰电极。

Due to the sulphidizing amine flotation of zinc oxideminerals being sensitive to the slimes and soluble salts, the problems of lowseparation indexes, complicated flotation circuit and reagent types, high consumptionand cost are still not solved in spite of lots of research and practice on the flotation ofzinc oxide ores.

由于氧化锌矿的胺法浮选对矿泥和可溶盐较为敏感，因此，尽管国内外对氧化锌矿的浮选工艺作了大量的研究和实践，仍然未能解决氧化锌矿的选别指标低、工艺流程及药剂品种复杂、成本高等问题。

Three initiators, ammonium persulfate / DMA, ammonium persulfate / urea / ammonia liquor, ammonium persulfate / triethanol amine were applied to the polymerization at 50癈, 55 癈 and 60癈, and the influence of ratio oxidant / reductant on reaction rate and molecular weight of polymer were studied.

本文研究了过硫酸铵／DMA、过硫酸铵／氨水／尿素、过硫酸铵／三乙醇胺三种引发体系在50、55、60℃下，不同氧化剂、还原剂配比条件对反应速率、分子量的影响。

ConclusionIn Radix Tinosporae alkaloid mostly is the amine quaternary ammonium base, the water-solubility is strong,suitable for extraction with high polar solvent.

结论金果榄中的生物碱大多为季铵碱，水溶性较强，适合用极性较大的溶剂进行提取。

The progress of application of the products, lignin amine s, in oil recovery,asphalt emulsification,sewage treatment and dye dispersion is discussed in detail.

综述了木质素与脂肪胺的曼尼希反应机理，反应物的种类和反应条件，并且详细介绍了反应产物木素胺及其衍生物在石油开采、沥青乳化、污水处理、染料分散等方面的应用进

We have synthesized 4,4'-dinitro-3 4''-dimethyl triphenylamine,(1), in 84% yield in an one-step condensation process between 3,4-dimethyl aniline and 4-fluoro-nitrobenzene. After the auto-oxidation of (1) and the subsequent hydrogenation of the nitro-groups, an AB2 type triphenylamine polyimide intermediate bearing two amine groups and one acid-anhydride group each on individual phenyl ring,{AB2 PI Intermediate}, was prepared successfully. The yields of the autoxidation and the hydrogenation steps are 81% and 90% respectively.

中文摘要本研究以3，4-二甲苯胺及4-氟硝基苯为原料，经一步骤缩合反应得到产率为84 %之4，4'-二硝基-3&，4&-二甲基三苯胺(1)，由(1)经自氧化法后再以氢化法还原硝基，成功地制备出带有二胺基与一羧基的三官能基之AB2型三苯胺中间体(AB2型PI中间体)，自氧化反应与氢化法的产率各为81%及90%。

The company mainly engaged in IHF Chen Fu-chemical pump, IH chemical centrifugal pumps, IS, ISZW, ISW series of single-suction centrifugal pumps, FJX series of forced circulation pump, WB series stainless steel whirlpool pump, LJYA amine-phosphate material pump, FY-liquid pumps, GNF-screw pump, IHG, ISG, SG series of pipeline pump, CQ-magnetic pump, AY-type pumps, CPN not plug the base pumps, YL series dedicated filter pump, ZW, ZWF series without plug Self-suction pumps, DF series dedicated pump starch, FSB fluoride plastic pump, FBR temperature-pressure pump printing and dyeing, AFB series Naifushibeng, LH phosphating solution for pump, CZ series of standard chemical pump, ZH series of self-suction centrifugal pump chemicals , UHB-ZK series of mortar decay resistance wear-resistant products such as pumps, the material is: 1 Cr18Ni9Ti, 1Cr18Ni12Mo2Ti, 304,904,316,316 L, CD4MCu, K alloy, F46, PP, PE, widely used in petroleum, chemical, electric power, Printing and dyeing, environmental protection, metallurgy, food and other industries.

本公司主要经营IHF型化工衬氟泵，IH型化工离心泵，IS、ISZW、ISW系列单级单吸离心泵，FJX系列强制循环泵，WB系列不锈钢旋涡泵，LJYA 型磷胺料浆泵，FY型液下泵，GNF型螺杆泵，IHG、ISG、SG系列管道泵，CQ型磁力泵，AY型油泵，CPN无堵塞碱泵，YL系列压滤机专用泵，ZW、ZWF系列无堵塞自吸泵，DF系列淀粉专用泵，FSB氟塑料泵、FBR型耐温耐压印染泵，AFB系列耐腐蚀泵，LH磷化液专用泵，CZ系列标准化工泵，ZH系列自吸式化工离心泵，UHB-ZK系列耐腐耐磨砂浆泵等产品，材质有：1Cr18Ni9Ti、 1Cr18Ni12Mo2Ti、304、904、316、316L、CD4MCu、K合金、F46、PP、PE等，广泛应用于石油、化工、电力、印染、环保、冶金、食品等行业。

The effect of reaction temperature,reaction time,materials ratio on the synthesis of piperidine alcohol benzoate ,hindered amine light stabilizer,from piperidine alcohol and benzoyl chloride by direct condensation were studied,and the proper technological conditions were given as follows:the reaction temperature is 95℃;reaction time is 4 h; the mole ratio of reactants,n∶n is 1∶1.4,the amounts of solvent is 40 mL(based 0.1mol piperidine alcohol),the arerage yield ...

王树清，高崇，苯甲酸哌啶醇酯HALS的合成工艺研究研究了以苯甲酰氯和哌啶醇为原料直接缩合合成苯甲酸哌啶醇酯受阻胺光稳定剂时反应温度、反应时间、原料配比等条件对合成反应的影响，确定了最佳工艺条件。最适宜的工艺条件是：反应温度95℃、反应时间6h、原料摩尔比n∶n为1∶1.4，溶剂用量为70mL(相对于0.1mol哌啶醇)，苯甲酸哌啶醇酯的收率为91.05%，产品纯度98.5%。

In the first part,we studied the nucleophilic addition reactions of aldehyde, amine,Zinc and benzyl bromide in one pot to afford homobenzyl and homoallyl amines in moderate to good yields.

第一部分的工作中，我们研究了Barbier型条件下醛，胺，锌粉，溴试剂一锅法的亲核加成反应。这种反应可以高效的得到高苄基和高烯丙基胺类化合物。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。