Free volumes in polymer nanocomposites

H. M. Chen, Ly James Lee, Jintao Yang, Xiaohong Gu, Y. C. Jean

研究成果: Conference article同行評審

8 引文 斯高帕斯(Scopus)


We have employed positron annihilation lifetime spectroscopy to measure the free volumes in nanocomposites of polystyrene with addition of carbon nanofiber (CNF) and carbon dioxide as a function of composition and of temperature. We found that the glass transition temperature (Tg) increases as a function of CNF compositions but significantly decreases as the exposure of CO2. We also investigate the combination effect of CNF and CO 2 and found that the CO2 significantly weakens the bonding between PS and CNF interfaces. The Tg changes are compared with DSC.

頁(從 - 到)177-179
期刊Materials Science Forum
出版狀態Published - 11月 2008
事件9th International Workshop on Positron and Positronium Chemistry, PPC-9 - Wuhan, China
持續時間: 11 5月 200815 5月 2008


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