Translational and rotational diffusions of multiwalled carbon nanotubes with static bending

We show that apparent persistence lengths of multiwalled carbon nanotubes decrease drastically to hundreds of nanometers if and only if they have static bend points. We find that the apparent persistence length of multiwalled carbon nanotubes with static bend points is also proportional to the reciprocal temperature such as the purely elastic worm-like chain around room temperature. Our results demonstrated that the mobility of multiwalled carbon naDotubes with static bend points must be enhanced by thermal fluctuation even at lowtemperature ranges from 278 to 363 K. We anticipate our paper to be a starting point for more sophisticated statistical mechanics models for the quantitative shape factor and the mobility of carbon naDotubes.