Abstract: | Monolayer balance techniques have been used to study “two-dimensional” polymerization of monomolecular films of octadecyl methacrylate and a divinyl ester. Polymerizations were initiated with ultraviolet radiation, and reaction rates and properties of the product evaluated from surface pressure–area isotherms. The polymerization rate of the acrylate in argon is linear up to 70% conversion; the product obtained in this way exhibits an isotherm which may reflect the packing and orientation of the starting monolayer. Rate data for the divinyl system—the product of which should be a sheet-like, two-dimensional analog of a network system—exhibit no unusual features. |