A polymer film comprising at least two layers, wherein each layer comprises a compound comprising the formula: ##STR1##

wherein R¹ and R² are independently selected organic groups. A method of making a polymer film comprising the steps of: providing a monomer solution comprising one or more monomers comprising the formula: ##STR2##

wherein R¹ and R² are independently selected organic groups; dispensing the monomer solution onto a substrate; heating the monomer solution on the substrate to polymerize the monomer; and repeating the steps of providing a monomer solution, dispensing, and heating one or more times, wherein the spin-coating is performed on top of the prior spin-coated layer.