Badania mechanicznych i optycznych własności polimetakrylanu metylu modyfikowanego ftalanem dwubutylu

The paper delas with the investigations of the mechanical and optical properties of polymethyl metacrylate modified with di-buthyle phtalate and with determination of the contents of di-buthyle phtalate at which the material obtained reveals the minimum optical sensitivity. Also investigated was the active and recovery creep at constant loading in the practically interesting time range for two materials of particular compositions.