Polymer Technology
Orlan fibre which is used as a wool sub stitute is

Polymethylmethacrylate (PMMA)
A natural polymeric fibre
Polyacrylonitrile
An amorphous polymer

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Polymer Technology
Epoxy resins (i.e., epoxide polymers)

Are cross-linked polymers only
Contain an epoxy group ( ##### ) at the ends of the polymer
Use emulsion polymerisation methods
Are made by addition polymerisation reaction only

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