From the gallery

For no particular reason other than it is a really nice image, here’s a picture from the Sheffield Polymer Physics Group. It’s an AFM image of a thin film of a block copolymer – a molecule with a long section that can crystallise (poly ethylene oxide), attached to a shorter length of a non-crystallisable material (poly vinyl pyridine). What you can see is a crystal growing from a screw dislocation. The steps have a thickness of a single molecule folded up a few times.

AFM image of a block copolymer growing from a screw dislocation

Image width 20 microns. Image by Dr Cvetelin Vaslilev, image post-treatment by Andy Eccleston.

3 thoughts on “From the gallery”

  1. Good image. The crusts represent? the structure behoves that the formation tip in in one direction and has gravity settles it like that or any other force?

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