查询词典 carboxylic

The synthetic method for nickel borate acylate, a kind of rubber-steel c ord adhesion promoter, through nickelous carbonate borate and mixed carboxylic a cids was studied, and many factors influencing the synthesis of NBA were investi gate d systematically.

研究了以碳酸镍、硼酸酯和混合羧酸合成新的金属橡胶粘合促进剂硼酰化镍的新方法。系统地考察了各种因素对合成硼酰化镍的影响。

In the point of view of molecule force theory, the physical regularity reflected in physical phenomenon of the normal boiling point for open chain, aromatic, alicyclic hydrocarbons and carboxylic acids, a new theoretical equation of the normal boiling point for them is proposed.

应用分子力学理论揭示出烃类和羧酸等的正常沸点 Tb这一物理现象中的物理规律性，从而提出其正常沸点的理论方程，物理意义明确，经用链烃，环烃和羧酸等的298个纯质的实测值验算，平均误差为0。

Carboxylic acid was peroxidized in organic solvents catalyzed by lipase and glycidol was synthesized from allyl alcohol catalyzed by acid peroxide.

利用脂肪酶在有机介质中催化制备过氧酸，丙烯醇在过氧酸的作用下发生环氧化反应生成环氧丙醇。

In the second chapter, a series of 6-aromatic amine carbonyl pyridine-2-carboxylic acid ligands have been designed, synthesized and characterized.

第二章报道了一系列新型6-位取代的吡啶-2-甲酸衍生物有机配体的分子设计、合成，并用元素分析、红外吸收光谱、核磁共振谱、质谱等方法进行了组成和结构分析。

Taking into account the fact that there is synergistic combination of the mixture stabilizer of the carboxylic ester rare earth salt and organotin mercaptide in thermal stabilization of PVC, we consider it more practial to replace partically the organotin mercaptide by the carboxylic ester rare earth salt.

特别是部分替代有机硫醇锡可发挥它们之间的协同效应，更具有实用性。

The particular preparation procedure is as follows: preparing a carbon nanotube with carboxyl by acidulating the carbon nanotube; Preparing the carboxylic carbon nanotube/nylon 66 composite material by polymerizing the carboxylic carbon nanotube and the raw material (such as polybasic acid and polybasic amine) which is used for preparing the nylon 66 through in situ polymerization.

具体步骤为：通过对碳纳米管进行酸化，制备携带羧基的碳纳米管。通过原位聚合法将羧基化碳纳米管与制备尼龙66的原料进行聚合，制备羧基化碳纳米管/尼龙66复合材料。

Results show that acid value of carboxylic wood powder from alkaline hydrolysis is higher,but its yield is lower than that from acid hydrolysis. The adsorption capacity of carboxylic wood powder for basic pink dye increased with increase of the initial concentration of the adsorbate,and could be kept over 500mg/g after repeated use and regeneration for 4 times.

实验结果表明：（1）在适量引发剂（FeSO4 * 7H2O=1g）和适当温度（60℃）作用下，可得到较高接枝增量和接枝率的PANW；（2）在PANW的水解反应中，在碱性催化剂作用下，可得到羧基含量高的产物，但收率较低；而在酸性催化剂作用下，则得到羧基含量低的产物，但收率较高；（3）羧基木粉对阳离子型染料--碱性桃红的吸附容量与起始浓度有关，本实验中，羧基木粉对碱性桃红的吸附容量最高可达500mg/g，对Cu2+的吸附容量最高可达39mg/g；（4）经0.3mol/LHCl再生4次后，羧基木粉对碱性桃红的吸附容量保持在440mg/g以上，在含有多种金属离子的溶液中，羧基木粉优先吸附Fe3+等硬酸型离子。

Examples of metal chelating groups include hydroxides especially aryl or heteroaryl hydroxides such as phenolic hydroxides; amines which may be aliphatic aryl or heteroaryl; mercaptans which may be aliphatic aryl or heteroaryl; carboxylic acids which may be aliphatic aryl or heteroaryl; oximes and ketoximines; acetarylamides; hydroxy silanes and silicones; N-containing heterocycles such as imidazoles benzimidazoles triazoles benzotriazoles thiazoles isothiazoles acid anhydrides and more preferably acid groups (especially carboxylic acid groups phosphoric acid groups polyphosphoric acid groups phosphonic acid groups sulphuric acid groups and sulphonic acid groups).

金属螯合组的例子包括氢氧化物，特别是芳基或如酚醛氢氧化物杂氢氧化物；胺可能是脂肪族，芳基或杂；硫醇可能是脂肪族，芳基或杂，这可能是脂肪族，芳基或羧酸杂；肟和ketoximines； acetarylamides；羟基硅烷和有机硅，含N，如咪唑，苯并咪唑类，三唑类，苯并三氮唑，噻唑类，isothiazoles，酸酐杂环，多最好酸组（特别是羧酸团体，磷酸，团体，多聚酸组，膦酸组，硫酸团体和磺酸组）。

The experiment shows that this type of column has good column characteristics. It has good capability in separating C5~C8 alcohol, phenol, aromatic acid, C2~C8 carboxylic acid. The quantitative analysis of carboxylic acids was investigated.

结果表明，这种色谱固定相具有较强的极性和选择性，对於极性有机化合物如脂肪酸、芳香酸、醇、酚等有良好的分离能力，且出峰快，时间短、峰形尖锐对称，可不经衍生直接进样分析。

Multilayer latex particles with carboxylic polymer as core, polymer with low glass transition temperature and film-formable under room temperature as shell, and lightly crosslinked polymer as intermediate layer were prepared with unsaturated carboxylic monomers by multistage seed emulsion polymerization. Finally, the room-temperature-film-formable polymer particles with hollow structure were obtained via the alkali treatment to the multilayer latex particles.

采用羧基单体进行多阶段的种于乳液聚合，制备了内核为带羧基的聚合物、最外层为易成膜的低玻璃化温度聚合物、中间为轻度交联中间隔离层的多层核壳结构乳胶粒，最后通过碱处理制成了具有室温成膜性的中空结构聚合物微粒。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。