polymetyyli
Polymetyyli is a term used in polymer chemistry to describe a family of polymers that contain methyl groups in their repeating units or as side chains. It is not a single compound, but a class of polymers derived from methyl-substituted monomers such as methyl methacrylate, methyl acrylate, or alpha-methyl styrene.
The most well-known member is polymethyl methacrylate (PMMA), commonly used as acrylic glass. Other examples include
Synthesis of polymetyyli polymers is typically achieved by chain-growth polymerization of the corresponding methyl-substituted monomers. Free-radical
Key properties of polymetyyli polymers include relatively high glass transition temperatures, good optical clarity, and varying
Applications are broad and include transparent architectural glazing, automotive interiors, lenses and displays, coatings, and specialty
See also: polymethyl methacrylate, poly(methyl acrylate), poly(alpha-methyl styrene).