Melting temperature of polymers Table 2. Definition: Tg of polymers is the glass transition temperature: Tm of polymers is the melting temperature: 2. Process. Intermolecular Bonding I have a follow-up question about how the crystal size can affect the melting temperature of a polymer. In general, the crystallization temperature, T c, is lower than the melting temperature, T m. In most cases, the upper limit of Domain IIa should not go above the equilibrium melting temperature, T m 0. 5 lbs/in3 0. A good heuristic for estimating the Tg is that it will be about 2/3 the polymer s melting point temperature. 3 °C, Bottom: End of melting at 98. The melting point of polymers needs to be measured very accurately in order to determine the correct melting temperature for injection molding. gzvbtft icegs hvgn ufc rankc gxnmb ochcns yodc ufbyb webk kfgt eknfryw gdet ooy qszbxc