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

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Hydroxypropyl methacrylate (HPMA) is an important chemical raw material, widely used in polymers, coatings, adhesives and other fields. Its upstream and downstream related products mainly include the following aspects:

upstream related products:

1. Propylene: Propylene is one of the main raw materials of hydroxypropyl methacrylate, through oxidation, esterification and other reactions to produce methacrylic acid, and then with hydroxypropyl alcohol ester exchange reaction to obtain hydroxypropyl methacrylate.
2. Hydroxypropyl alcohol: Hydroxypropyl alcohol is another important raw material of hydroxypropyl methacrylate, which is transesterified with methacrylic acid to produce hydroxypropyl methacrylate.

downstream associated products:

1. Polymer: hydroxypropyl methacrylate can be copolymerized with other monomers to produce polymers with specific properties. For example, by copolymerization with methyl methacrylate, a polymer material having high transparency and high impact strength can be obtained.
2. Coating: Hydroxypropyl methacrylate can be used as one of the main components of the coating to improve the adhesion and water resistance of the coating. For example, emulsion coatings prepared by copolymerization with butyl acrylate, styrene and other monomers have excellent weather resistance, water resistance and other properties.
3. Adhesive: Hydroxypropyl methacrylate can be used as the main component of the adhesive to improve the adhesive strength, water resistance and other properties. For example, adhesives prepared by copolymerization with monomers such as vinyl acetate can be used for bonding materials such as wood and paper.

In short, hydroxypropyl methacrylate has a wide range of upstream and downstream related products, involving polymers, coatings, adhesives and other fields, which plays an important role in promoting the development of the chemical industry.

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