Yes, a carbon-carbon bond is around 0.1-0.2nm. At these scales, these "plastics" are closer to monomers than polymers.
A 10-carbon chain with its hydrogens attached can hardly be called "polyethylene"; it is a higher alkane and behaves more like wax or mineral oil than what most people would call a plastic:
A 10-carbon chain with its hydrogens attached can hardly be called "polyethylene"; it is a higher alkane and behaves more like wax or mineral oil than what most people would call a plastic:
https://en.wikipedia.org/wiki/Higher_alkanes
I wonder if the PE they are finding is actually https://en.wikipedia.org/wiki/Petroleum_jelly