The thermal behaviour of a main-chain thermotropic co-polyester has been investigated by Differential Scanning Calorimetry. Crystallization and melting have been studied through the effect of the annealing time and temperature on the transition temperatures and enthalpies. Two melting peaks are observed, the first one clearly developping on annealing. Hypotheses are suggested about the crystallization mechanism. The glass-transition (rate-dependent) appears broadened and does not show hysteresis on heating and cooling through the transition temperature.
Phase transitions of a main-chain thermotropic copolyester: crystallization, melting behaviour and glass-transition studied by DSC / R., Pucciariello; Carfagna, Cosimo. - In: POLYMER BULLETIN. - ISSN 0170-0839. - 35:(1995), pp. 735-741. [10.1007/BF00294957]
Phase transitions of a main-chain thermotropic copolyester: crystallization, melting behaviour and glass-transition studied by DSC
CARFAGNA, COSIMO
1995
Abstract
The thermal behaviour of a main-chain thermotropic co-polyester has been investigated by Differential Scanning Calorimetry. Crystallization and melting have been studied through the effect of the annealing time and temperature on the transition temperatures and enthalpies. Two melting peaks are observed, the first one clearly developping on annealing. Hypotheses are suggested about the crystallization mechanism. The glass-transition (rate-dependent) appears broadened and does not show hysteresis on heating and cooling through the transition temperature.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
