同时酷氨酯残基中酚环的构象和微极性发生了改变。
In addition, the conformation and microenvironment of tyrosyl residue of proteins were markedly affected.
这可用脲键比氨酯键有较好的相分离和较高的熔化温度来说明。
The results can be explained in terms of better phase separation and higher melting temperatures of the urea linkages over the urethane linkages.
该水性氨酯油干性快、 硬度高、综合性能优异，应用前景广阔。
The coating shows quick drying property, high hardness and excellent comprehensive performances. The application prospect thereof is wonderful.
实验结果表明，聚醚氨酯经该法提纯后其力学性能有了显著的提高。
The results indicate that low molecular polymers and small molecular compounds contained in the polymer were removed by the method.
对马来酸三甲氧苯丁氨酯（TM）镇痛作用的机制进行了初步探讨。
The analgesic effect of trimebutine maleate (TM) and its mechanism were studied in this paper.
探讨马来酸三甲氧苯丁氨酯（TM ）镇痛作用与单胺类递质的关系。
The relationship between trimebutine maleate(TM) analgesia and monoamine transmitters was investigated in this paper.
该氨酯油中引入了羧基阴离子和丙烯酸双键，用有机胺中和后溶于水中。
The resin can be solved in water by neutralizing carboxylic groups and double bonds therein with organic amine.
与氯化橡胶类、氧类、氨酯类、氧沥青、青系、氧酯等体系的涂料配套使用。
It can be compatible with chlorinated rubber, epoxy, epoxy-tar, tar, epoxy ester paint systems.
以植物油、TDI为主要原料合成氨酯油，中和后加入水分散得水性氨酯油溶液。
Oil-modified urethanes is prepared with vegetable oil and TDI as main materials, which is then neutralized to form the waterborne oil-modified urethanes.
由于在共混物中引入了芳香族氨酯键，增加了醇酸树脂漆膜的附着力、硬度、固化速度及表面能。
The introduction of polyurethane groups to the blend improved the adhesivity, hardness, curing speed and surface energy of alkyd resin.
油与多元醇经醇解反应，进而与聚醚或聚酯、 二羟甲基丙酸、二异氰酸酯反应制得水溶性氨酯油。
Waterborne polyurethane resin is prepared by alcoholyzing oil with polyol at first, and then reacting with polyether (polyester), dimethylol propionic acid, diisocyanate.
异氰酸酯的改性方法包括氨酯改性、二聚改性、三聚改性、缩二脲改性、碳化二亚胺改性和封闭改性等。
Methods for the modification of isocyanates include process of urethane, dimerization, trimerization, biuret, carbodiimide, and blocking reaction, etc.
两系列嵌段聚酯型聚脲氨酯(PUU)弹性体，并考察了这些材料在不同退火条件下软段结晶的热变化。
W. 1228 were made by DSC. Further, thermal changes of soft segment crystalline of these materials at different annealing conditions were also investigated.
与氯化橡胶类、氧类、氨酯类、氧沥青、青系、氧酯等体系的涂料配套使用。但不能与油性、酸、漆配套使用。
It can be compatible with chlorinated rubber, epoxy, epoxy-tar, tar, epoxy ester paint systems. But it is incompatible with oil base, alkyd, polyester coating systems.
本文用红外光谱法较系统地研究了聚醚型聚脲氨酯内的氢键及其性质，表明材料内的NH基团是几乎完全氢键化的。
The hydrogen bonds and their property of the polyether polyurethane-urea have been systematically studied. The results indicate that the NH groups are almost completely hydrogen-bonded.
天冬氨酰苯丙氨酸甲酯：存在于低热量食品和饮料中的糖精中，与脑癌的发生相关联。
Aspartame: Imitation sweetener in diet foods and beverages. Associated with brain cancer.
我们的氨甲酸乙酯食物传送带具有优异的抗脂肪，植物，动物和矿物油，以及化学清洁剂的功能。
Our Urethane food belts have excellent resistance to fats, vegetable, animal and mineral oils, as well as cleaning chemicals.
举例来说，梨型糖果气味的酯和丙酮与糖尿病有关联，氨则与肝炎有关，而二甲基硫醚则预示着硬化。
For example, the odour of 'pear drops' esters and acetone in relation to diabetes, ammonia in relation to hepatitis, and dimethyl sulphide to cirrhosis.
来源于巨大芽孢杆菌的固定化酶催化头孢克罗合成的能力较好，以苯甘氨酸甲酯（PGME）为底物较酰氨的效果好。
The immobilized enzyme from Bacillis megaterium gave a better catalytic properties and the higher conversion was obtained using phenylglycine methyl ester (PGME) as acyl donor.
方法：采用了薄层扫描法，以苯-丙酮-醋酸乙酯-浓氨试液（2∶3∶4∶0.2）为展开剂，稀碘化铋钾试液为显色剂；
Method:Thin layer scan used benzene-acetone-ethel acetate-strong ammonia solution(2:3:4:0.2) as a dose, diluted iodized bismuth potassium solution Hin color agent for;
由苯-1，2，4-三羧酸-1，2-酐和羟乙基哌嗪合成酰胺键、叔氨和酯键交替排列的水溶性超支化聚合物。
Synthesis of Water-soluble Hyperbranched Polymer with Alternating Amido, Tertiary Amino and Ester Units from Benzene-1,2,4-tricarboxylic Acid-1,2-anhydride and N-(2-Hydroxyethyl)piperazine.
利用十七碳异氰酸酯的高反应活性，将长碳链异氰酸酯与氨基硅油加成反应制备不同氨值的长链烷基改性氨基硅油。
Using this high reactive isocyanate as modification reagent, long-chain alkyl was introduce into the side-chain of aminopropyl silicone oil successfully.
利用十七碳异氰酸酯的高反应活性，将长碳链异氰酸酯与氨基硅油加成反应制备不同氨值的长链烷基改性氨基硅油。
Using this high reactive isocyanate as modification reagent, long-chain alkyl was introduce into the side-chain of aminopropyl silicone oil successfully.
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