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Product Description This digital document is an article from Polymer Engineering and Science, published by Society of Plastics Engineers, Inc. on April 1, 1995. The length of the article is 3592 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser. From the author: The morphologies of amorphous polymer blends produced by extrusion were investigated by transmission electron microscopy. Polymers with similar viscosities, i.e. poly(methyl methacrylate) (PMMA), polystyrene (PS), and random copolymers P([S.sub.x][MMA.sub.1-x]) were mixed pairwise, in different compositions. Finely dispersed phase structures were produced in the blends, with domains in the submicron range. The structure patterns were considerably perturbed by the stress fields in the extruder. Domain-matrix and co-continuous morphologies were obtained, in a distribution controlled mainly by the viscosity ratio. Annealing after extrusion led to structure coarsening, whereby the patterns were changed until a steady state was established. Sometimes, matrix inversion was observed. Citation Details Title: Morphologies of mechanically mixed amorphous blends before and after annealing. Author: L.N. Andradi Publication: Polymer Engineering and Science (Refereed) Date: April 1, 1995 Publisher: Society of Plastics Engineers, Inc. Volume: v35 Issue: n8 Page: p693(10) Distributed by Thomson Gale