... & Synthetic plastic optical fiber optic POF Introduction :Polymethyl methacrylate, which is abbreviated as PMMA, is a clear plastic ... by free radical vinyl polymerization from the monomer methyl methacrylate. Properties :hardrigidtransparent (very clear to see through) softening ... as benzene, toluene, chloroform, methylene chloride, esters, ethyl acetate, and amyl acetate. PMMA has good resistance to ...