What are the most basic ingredients of emulsion polymerization? What effect does it have on the performance of the polymer?

Emulsion is the film-forming substance of latex coatings, and is a polymer obtained by emulsion polymerization.

The most basic component of emulsion polymerization is monomer. The properties of polymers obtained by copolymerization of different monomers are different. Some polymers are harder after film formation, and some are softer. Monomers capable of forming hard polymers are called hard monomers, and monomers capable of forming soft polymers are called soft monomers. The hard monomers commonly used to prepare emulsions include vinyl acetate, methyl methacrylate, and styrene. Commonly used soft monomers are acrylates such as ethylene, ethyl acrylate and butyl acrylate. The hardness of the polymer obtained by copolymerization with different proportions of soft monomer and hard monomer decreases as the proportion of soft monomer and hard monomer increases. By adjusting the monomer ratio, a series of polymers with different hardness can be obtained. These polymers are linear linear macromolecules. In addition, there are functional monomers with functional groups. The introduction of these functional monomers into polymer macromolecules can improve the properties of the polymer, such as adhesion, water resistance, alkali resistance and other physical properties.