A Polymer Thin-Film Technique to Study Phase Separation

Autor:	M.S. El-Aasser, O. L. Shaffer, J.W. Vanderhoff, V. Dimonie
Rok vydání:	1985
Předmět:	Study phase Materials science Separation (aeronautics) General Medicine Composite material Polymer thin films
Zdroj:	Proceedings, annual meeting, Electron Microscopy Society of America. 43:82-83
ISSN:	2690-1315 0424-8201
DOI:	10.1017/s0424820100117480
Popis:	There is a great deal of interest in the morphology of polymers. Polymer systems such as physical blends, copolymers and latexes of the core-shell type have become increasingly important in “designing properties”. of the final polymer. Phase separation examination is an excellent method of studying the morphology in these polymer systems.Normally phase separation in polymers has been studied by TEM. The standard sample preparation is to embed the solid polymer in epoxy and then microtome. Microtoming can create artifacts such as distortion due to the knife, cutting difficulty with a rubber phase and possible polymer-epoxy interaction. Because of the above mentioned problems a thin film technique has been developed to circumvent the microtoming procedure. A ruthenium tetrox-ide (RUO4) stain was also used to increase contrast.
Databáze:	OpenAIRE
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