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They wanted to investigate the ability of the substance's latent pores to separate two different forms of decalin.

This changes the decalin's physical and chemical properties and so makes the substance a good candidate for exploring selective encapsulation.

But something about the interaction between polyethylene molecules and the new solvents seems to encourage the formation of more perfect crystals than those that emerge from a decalin solution.

They then cooled the mixture down, letting crystals form, drew fibres from the result, and tested what they had to see how it compared with fibres prepared using a non-polar solvent called decalin.