| Abstract: | It was found that the deciding factor for the reactivity of aromatic diamines with epoxide resins are basic values of electron structure and chemical reactivity on the end amino-groups. A linear dependence was determined between logarithm of gelatinization time and electron density of the amino-group which was calculated using principles of quantum chemistry. Changes in the structure of aromatic diamines leading to changes of the electron density of amino-group cause a reactivity change of these compounds during polyaddition. This method shows possibilities offered by quantum chemistry in the field of plastics. |
