Before revision: A peculiarity of the thermal motion of very long linear , entangled macromolecules in polymer melts or concentrated polymer solutions is File:Reptation.svg|250px|Reptation—motion of long linear, entangled macromolecules amorphous polymers.
After revision: A peculiarity of the thermal motion of very long linear macromolecules in entangled polymer melts or concentrated polymer solutions is