Pure Monomer Resins
Pure monomer resins, also known as alpha methyl styrene resins, are a type of hydrocarbon resin that is derived from the polymerization of alpha-methylstyrene (AMS) monomer. AMS is a derivative of styrene that contains a methyl group on the alpha-carbon, which gives it unique properties compared to regular styrene.
The chemistry of pure monomer resins is characterized by the polymerization of AMS monomer through a free radical mechanism. During the polymerization process, the double bond on the styrenic ring of AMS is broken, and the monomers are joined together to form a polymer chain.
Pure monomer resins have a unique molecular structure that gives them unique properties compared to other hydrocarbon resins. The presence of the methyl group on the alpha-carbon of AMS monomer gives the resulting resin improved heat resistance, chemical resistance, and electrical insulation properties.