THE EFFECT OF DISPERSE DYES ON THE GLASS-TRANSITION TEMPERATURE OF POLYMERS

The lowering of the glass transition temperature (T-g) of a polymer pr oduced by the incorporating various concentrations of azo disperse dye s has been investigated, and the effects of the structure and concentr ation of the dyes were examined. The T-g values were lowered with incr easing dye concentrations in the polymer, and the lowering of T-g prod uced by the dyes was influenced not only by the molecular structure of the dyes but also the dye-polymer interactions.