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

Química Nova

Luciana Maria Guimarães¹  Edgar Dutra Zanotto¹ 

[1] ,Universidade Federal de São Carlos Departamento de Engenharia de Materiais São Carlos SP

关键词: crystallization;    critical cooling rate;    poly(decamethylene sebacate);   

DOI  :  10.1590/S0100-40422003000200011

来源: SciELO

【 摘 要 】

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.

【 授权许可】

CC BY-NC   
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