8050-0 83 05v 02 103 POLY(VINYLIDENE FLUORIDE)This project goal was to determine the maximum pyroelectric effect possible from poled poly(vinylidene fluoride) (PVF2). While much else was accomplished, which will be described below, we found no evidence that the pyrolectric coefficient of PVF2 could be made much higher than has already been achieved. AchievementsThe major achievements under this project were:1. High molecular weight PVF2 and copolymers with vinyl fluoride VF were made. Control over molecular weight was S. The melting and annealing behavior of our synthesized PVF 2 was compared to that of commercially produced materials, as our material had little H-H structure and no contaminating material. We found that our materials recrystallized faster than the commercial materials, but annealled Tm's were all close. We postulated that our materials had less branching which allowed them to reach higher Tm's and higher % crystallinity in a short time, compared to commercial He was supported on the DARPA grant until it expired, and has continued the research since. PapersA copy of each of the published papers is appended.