Studies of Monolayers of Glass-Forming Polymers

点击翻译按钮获取中文摘要

This study involves polymers which form glasses. The techniques of absolute volume dilatometry, Differential Scanning Calorimetry, and Langmuir monolayer trough studies will be used to investigate glass forming polymers. Dilatometry and Differential Scanning Calorimetry will be used to examine the bulk glasses. This will involve isobaric temperature scans as well as volume recovery isotherms. The same polymers will then be spread on a Langmuir trough to form a glass-like structure at a free surface. The glass-like monolayers will be studied using analogous experiments to the bulk studies. Measurements will include surface area vs time isotherms at constant applied surface pressure and surface area vs temperature studies at constant applied surface pressure. The properties of polymer glasses confined to a surface are expected to be useful in a molecular interpretation of the glassy state.