Abstract
We employed fast-scan chip-calorimeter (FSC) measurement (Flash DSC1) to study the melting of syndiotactic polystyrene after melt-crystallized at various cooling rates as well as after isothermally crystallized at various high temperatures. We attributed the observed double melting peak to a melting-recrystallization process of beta-form crystals upon heating, as evidenced by their variations with different cooling and heating rates. Our experiments demonstrated the advantages of FSC techniques in the investigation of crystallization and melting behaviors of polymer materials.
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Acknowledgements
The financial support from the National Natural Science Foundation of China (Nos. 20825415 and 21274061), National Basic Research Program of China (No. 2011CB606100) and Program for Changjiang Scholars and Innovative Research Team in University is appreciated. The support from Anhui Tong Feng Electronics Corporation is also appreciated.
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Li, Z., Jiang, X., Gao, H. et al. Fast-scan chip-calorimeter measurement on the melting behaviors of melt-crystallized syndiotactic polystyrene. J Therm Anal Calorim 118, 1531–1536 (2014). https://doi.org/10.1007/s10973-014-4059-x
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DOI: https://doi.org/10.1007/s10973-014-4059-x