Lasisinirtymä
Lasisinirtymä, also known as the glass transition, is a phenomenon observed in amorphous solids, most notably polymers, where a transition occurs between a hard, glassy state and a more flexible, rubbery state. This transition is not a true phase transition like melting or boiling, which involves a change in heat capacity and a latent heat. Instead, it is a kinetic phenomenon that depends on the cooling rate.
At temperatures below the glass transition temperature (Tg), the molecular segments of the amorphous material have
The glass transition temperature is a characteristic property of a given amorphous material and is influenced