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[Chemical Knowledge]：What are the upstream raw materials for ethyl methacrylate nitrile? What do the downstream products contain?

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Ethyl methacrylate nitrile (MAN) is an important organic chemical raw material, which is widely used in synthetic polymer materials, fine chemicals and other fields. In the field of raw materials for chemical production, the upstream and downstream related products of ethyl methacrylate nitrile mainly include the following aspects:

upstream products:

1. Acrylonitrile: Acrylonitrile is one of the main raw materials of ethyl methacrylate nitrile. Ethyl methacrylate nitrile is finally produced by esterification reaction between acrylonitrile and methanol, and then nitration reaction with hydrazine hydrate.

Downstream Products:

1. Polymer: Ethyl methacrylate nitrile can be used as a monomer to generate a polymer through polymerization. Among them, polymer can be used as the main component of plastic, rubber, fiber and other polymer materials, with excellent performance and application value.
2. Fine chemicals: Ethyl methacrylate nitrile can be used as a raw material to further synthesize a series of fine chemicals, such as methacrylic acid, methyl methacrylate, etc. These fine chemicals are widely used in coatings, adhesives, inks and other fields.

Specifically, the upstream and downstream associated products of ethyl methacrylate nitrile include the following:

Upstream products:

1. Propylene: Propylene is one of the raw materials of ethyl methacrylate nitrile, which generates acrylonitrile through oxidation reaction, and then further synthesizes ethyl methacrylate nitrile.
2. Methanol: Methanol reacts with acrylonitrile to produce methyl methacrylate, and then reacts with hydrazine hydrate to produce ethyl methacrylate nitrile.

Downstream Products:

1. Polymer: Ethyl methacrylate nitrile can be used as a monomer to generate polymers, such as poly-ethyl methacrylate nitrile. These polymers have excellent properties such as high temperature stability and chemical resistance, and can be used as engineering plastics and high temperature wear-resistant materials.
2. Methacrylic acid: Ethyl methacrylate nitrile can be hydrolyzed to produce methacrylic acid. Methacrylic acid is an important organic acid, which is widely used in synthetic resins, coatings, adhesives and other fields.
3. Methyl methacrylate: Ethyl methacrylate nitrile can be transesterified with methanol to produce methyl methacrylate. Methyl methacrylate is a transparent, high hardness plexiglass, widely used in construction, automobile, aviation and other fields.

In short, ethyl methacrylate nitrile plays an important role in the field of raw materials for chemical production, and its upstream and downstream related products are widely used in various fields, which is of great significance for promoting economic development and improving people's living standards.

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