Isocyanate - Wikipedia
In organic chemistry, isocyanate is the functional group with the formula R−N=C=O. Organic compounds that contain an isocyanate group are referred to as isocyanates. An organic compound with two isocyanate groups is known as a diisocyanate.
异氰酸酯（化学物质）_百度百科
单异氰酸酯是有机合成的重要中间体，可制成一系列 氨基甲酸酯类杀虫剂 、杀菌剂、 除草剂，也用于改进塑料、织物、皮革等的防水性。 二 官能团 及以上的异氰酸酯可用于合成一系列性能优良的 聚氨酯泡沫塑料 、 橡胶 、 弹力纤维 、涂料、胶粘剂、 合成革 、 人造木材 等。 应用最广、产量最大的是有： 甲苯二异氰酸酯 （Toluene Diisocyanate，简称 TDI）； 二苯基甲烷二异氰酸酯 （Methylenediphenyl Diisocyanate，简称 MDI）。
Polyisocyanates: A deep dive behind the chemistry - Prospector by …
2021年7月15日 · HCT has developed Green Polyurethane™, the first-ever modified hybrid polyurethane (currently used in coatings and paint) manufactured without the use of toxic isocyanates throughout the entire production process. The result is a substitute for conventional polyurethane and epoxies that is less toxic, and may provide reduced application costs.
polyisocyanate - 百度百科
polyisocyanate，英语单词，主要用作名词，作名词时译为“聚 异氰酸酯；聚亚安酯”。 [1] One of applications of rosin in PU paint is rosin ester resin modified polyisocyanate prepolymer.松香酯树脂改性多异氰酸酯预聚物是松香在PU涂料中应用的一个途径。 It is made of organic diisocyanate or polyisocyanate with two hydroxyl groups or polyhydroxy compounds together with.它是由有机二异氰酸酯或多异氰酸酯与二羟基或多羟基化合物加聚而成。
Polyisocyanides, Polyisocyanates - SpringerLink
2014年1月1日 · Although the term “polyisocyanate” sometimes refers to low molecular weight compounds containing more than one isocyano group, this article deals with only polymers obtained from isocyanate monomers via transformation of their isocyano group. A variety of alkyl and aryl isocyanates can be prepared and some of them are commercially available.
异氰酸酯 - 维基百科，自由的百科全书
异氰酸酯 是一类由 异氰酸 衍生出的 酯，通式为R- N = C = O，是 氰酸酯 R-O-C≡N的 异构体。 根据分子中酯基个数的不同，可分为单异氰酸酯、二异氰酸酯等。 二异氰酸酯可用于生产 聚氨酯。 通常以少一个碳原子的 胺 为原料，通过与 光气 反应引入异氰酸基。 [1] 实验室中，异氰酸酯可通过酰基叠氮的 Curtius重排反应 或 异羟肟酸 的 Lossen重排反应 制取。 含有异氰酸酯官能基之有機化合物与 醇 反应生成 氨基甲酸酯，具有2個异氰酸酯官能基之异氰酸酯稱為二异氰酸酯 (di …
Synthetic Control of Helical Polyisocyanates by Living Anionic ...
2022年2月22日 · Interest in polyisocyanates with helical properties is driven by various synthesis methods. Furthermore, the living characteristics of the polymerization of isocyanate have been studied with kinetics. The rigid-rod structures of polyisocyanates generate specific morphologies of block copolymers.
How Polyisocyanates are Becoming More Sustainable and …
2023年6月14日 · Over the last decade, there has been a plethora of more sustainable, ecofriendly and less toxic polyisocyanate and polyurethane chemistries developed. These include those derived from biobased sources (rather than from petrochemicals) or the use of nonisocyanate (NIPU) technologies, or polyisocyanates containing very low levels of free isocyanate.
Polyurethanes are the reaction products of polyisocyanates with many commonly used surface coating polymers. As a result, polyurethane technology embraces a very wide and important...
Polyisocyanate - PubChem
Polyisocyanate. PubChem Reference Collection SID. 481110234. PubChem CID. Not available because this is not a discrete structure. Synonyms. Polyisocyanate . Chemical Safety. Laboratory Chemical Safety Summary (LCSS) Datasheet. 1 Synonyms. Polyisocyanate . PubChem. 2 Names and Identifiers. 2.1 Other Identifiers. 2.1.1 CAS.