Cristalização e taxa crítica de resfriamento para vitrificação do poli(sebacato de decametileno)


Autoria(s): Guimarães,Luciana Maria; Zanotto,Edgar Dutra
Data(s)

01/03/2003

Resumo

We synthesized Poly(decamethylene sebacate) - P10MS - and studied its overall crystallization rates in a range of temperatures using Differential Scanning Calorimetry in isothermal conditions, which enabled us to identify the crystallization mechanism by means of the Johnson-Mehl-Avrami-Kolmogorov equation. The critical cooling rate (Rc) to vitrify the P10MS was determined using a non-isothermal method proposed by Barandiarán & Colmenero (BC). The value of Rc is around 50-250 K/s, which confirms the experimentally observed difficulty to vitrify this polymer.

Formato

text/html

Identificador

http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422003000200011

Idioma(s)

pt

Publicador

Sociedade Brasileira de Química

Fonte

Química Nova v.26 n.2 2003

Palavras-Chave #crystallization #critical cooling rate #poly(decamethylene sebacate)
Tipo

journal article