Ideality of pressure-sensitive paint. I. Platinum tetra(pentafluorophenyl)porphine in fluoroacrylic polymer

The pressure sensitive paint (PSP) properties of a fluoroacrylic polymer, F IB, with the luminophor platinum tetra(pentafluorophenyl)porphine (PtTFPP) are presented. This paint forms a hard coating that displays Stern-Volmer p lots with a high dynamic range (similar to 0.9) [defined as (I-vac - I-atm) /I-vac], good photostability, a response time of less than 1 s and a relati vely low temperature dependence (similar to 0.6% per degree). The temperatu re dependence is low because FIB has a unusually low activation energy for the diffusion of oxygen. Pressure and temperature affect intensity independ ently making this PSP "ideal." The basecoat affects the functionality of th e PSP it underlies, and the optimal basecoat used to date also includes the FIB polymer. The synthesis of the FIB polymer is a copolymerization that o ccurs in one step with a peroxide initiator. Annealing the painted model ab ove T-g = 70 degrees C procures adhesion and ideality. (C) 2000 John Wiley & Sons, Inc.