Study on glass transition and physical aging of polystyrene nanowires by differential scanning calorimetry

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• 作者：WanChu Wei ; Shuo Feng ; QiHua Zhou ; HuaQing Liang…
• 关键词：Polystyrene nanowires ; Glass transition ; Physical aging ; Differential scanning calorimetry ; Nanoconfinement
• 刊名：Journal of Polymer Research
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：24
• 期：3
• 全文大小：
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Polymer Sciences; Industrial Chemistry/Chemical Engineering; Characterization and Evaluation of Materials;
• 出版者：Springer Netherlands
• ISSN：1572-8935
• 卷排序：24

文摘

In the present study, polystyrene (PS) nanowires in aqueous dispersion with a diameter ranging from 120 to 300 nm are prepared via electrospun and dispersed in water. Relatively, PS nanowires confined in anodic aluminum oxide (AAO) template are prepared through drawing PS flow into the tube of AAO template. Scanning electron microscopy (SEM) and energy dispersive spectrometer (EDS) are used to characterize the size of the resultant nanowires and ensure the successful preparation of nanowires. Moreover, the glass transition and physical aging behaviors of the PS nanowires in aqueous dispersion and confined in AAO template are investigated by differential scanning calorimetry (DSC). The PS nanowires in aqueous dispersion and confined in AAO template exhibit different glass transition and physical aging behaviors.