异氰酸

TEM images showed that the silica particles remained unaggregated after surface modification.

著者文摘二氧化硅纳米粒子丙烯酸酯甲苯-2，4-二异氰酸酯表面修饰

New compounds of the type of unsymmetrically substituted ureas are synthesized by a series of reactions of preparing organic isocyanates by Curtius rearrangement with aromatic amine.

以3 苯基 2 丙烯酸为原料，用Curtius重排的方法合成异氰酸酯，直接与芳香胺作用，合成了5 种N 取代苯基 N′苯丙烯基脲类化合物。

The paper dealt with the air-drying property of unsaturated polyester.

研究了不饱和聚酯的气干性，即通过引入&气干性基团-异氰酸酯基&解决了不饱和聚酯的厌氧性。

A salt or ester of acetic acid .

异氰酸形成的一种盐或酯。

Room temperature ionic liquids are the hot points of the current research fields of chemistry, chemical engineering and functional materials. Since 1998, the preparation and application of ionic liquids as environmentally benign reaction media and functional material have been carried out in Lanzhou Institute of Chemical Physics. The detailed research work, including the design and preparation of novel ionic liquids, ionic liquid as catalyst and reaction medium in sulfuric acid free Beckmann rearrangement,...

离子液体介质与材料研究是当前化学化工、功能材料的热点领域之一。1998年底以来，我们以发展离子液体清洁反应介质和软功能材料为研究内容，以实现新离子液体的设计与合成，离子液体中无硫酸Beckmann重排反应、非光气异氰酸酯合成、二氧化碳吸收与活化、反应-升华分离一体化，微孔硅胶限制纳米尺度离子液体材料的设计合成和应用及离子液体-电化学技术集成等为目标开展了一系列研究工作并取得良好进展。

The performance and application of blocked diisocyanate as dipping adhesive activated agent for polyester tire cord and EP, EE conveyor fabric double dipping process are studied in this paper.

本文针对涤纶帘子布和EP、EE帆布的二浴浸胶工艺，对封闭异氰酸酯的性能及应用进行了研究。

Among the non-phosgene synthesis of isocyanate presented, the most promising one is the thermal decomposition of N-substituted carbamates. Unfortunately, this kind of compound is also mainly produced from phosgene or phosgene derivatives in industry.

中文摘要在目前所报导的非光气合成异氰酸酯路线中，N-取代氨基甲酸酯热裂解法是最具有应用前景的一条途径，然而这类化合物的工业化生产也是以光气法为主。

It was found that the unblocking temperature of the cationic blocked isocyanatc is 117℃, and the practical starting curing temperature of the paint film is about 140℃. The paint film can be cured completely at 180℃ for 30 min.

结果表明：丁醇封闭的阳离子型封闭异氰酸酯解封温度为117℃，电泳漆膜的实际起始固化温度为140℃左右，在180℃、30min可固化完全。

Chapter 2 Some novel Aza-Wittig regents were synthesized under mild conditions, their reaction performance was studied, and the reaction mechanism of these Aza-Wittig reagents with phenyl isocyanate was speculated.

第二章主要研究了在温和条件下一些新型的Aza-Wittig试剂的合成及其反应性能，并对新型的Aza-Wittig试剂与异氰酸苯酯的反应机理进行了推测。

A series of Bi-Zn composite oxide catalysts were prepared by coprecipitation and used for the synthesis of phenyl isocyanate by catalytic decomposition of methyl N-phenyl carbamate.

采用共沉淀法制备了一系列Bi-Zn复合氧化物催化剂并将其用于催化苯氨基甲酸甲酯分解制备苯基异氰酸酯。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。