Polymer Diffusion
by Biosym Technologies, Inc./science Photo Library
Title
Polymer Diffusion
Artist
Biosym Technologies, Inc./science Photo Library
Medium
Photograph - Photograph
Description
Polymer diffusion model. Molecular graphic showing the free volume distribution (coloured panel) in a cross-section through a matrix of amorphous poly- carbonate, a type of polymer. Wire-drawn polymer molecules fill the matrix (green = carbon; white = hydrogen; red = oxygen). Colours on the panel correspond to the key: red indicates high free en- ergy (low free volume); blue indicates low free energy (high free volume). This type of model is used to predict that rate at which gases diffuse through a polymer matrix.
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February 22nd, 2021
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