Physical Properties of Poly(fluoroalkyl methacrylate)s Poly(fluoroalkyl 2-fluoroacrylate)s

Abstract

Physical properties of poly(fluoroalkyl methacrylate)s and poly(fluoroalkyl 2-fluoroacrylate)s were investigated. The refractive index decreases with increasing the fluorine content of the polymer. The observed values of refractive index reveal good agreement with the values calculated by using the Lorentz-Lorenz equation. The glass transition temperatures of polylfluoroalkyl 2-fluoroacrylate)s are 20-30°C higher than those of poly(fluoroalkyl methacrylate)s and the difference seems to be attributed to the difference in the intermolecular interaction. The Young's modulus of poly(fluoroalkyl 2-fluoroacrylate)s are lower than those of poly(fluoroalkyl methacrylate)s in spite of the higher glass transition temperature. Furthermore poly(fluoroalkyl 2-fluoroacrylate)s show higher thermal stability than poly (fluoroalkyl methacrylate)s.