Centrifugal force spinning is a technique that has recently come into light as an easy route to producing large quantities of nano- to micro- scale polymer fibres in a short time frame. A polymer solution or melt is placed into a spinneret with a fine nozzle outlet, and a high rotational speed is utilised to force out and elongate the material into a polymer fibre. We have previously measured the backbone anisotropy in electrospun polymer fibres and would like to make a comparison between the two methods to see which has a more impact on polymer chain alignment. We plan to use isotopically labelled samples to measure the backbone anisotropy developed during the fibre production process and observe how it is influenced by angular velocity, initial solution concentration and solvent volatility.