Dynamics of rodlike polymers in semidilute solutions: Short-time-scale motion

✍ Scribed by Doi, Masao

• Book ID: 105334225
• Publisher: Wiley (John Wiley & Sons)
• Year: 1982
• Tongue: English
• Weight: 584 KB
• Volume: 20
• Category: Article
• ISSN: 0098-1273
• DOI: 10.1002/pol.1982.180201018

✦ Synopsis

Abstract

A new kinetic equation which describes the rotational Brownian motion of rodlike polymers in concentrated solution is proposed on the basis of the tube model. The equation takes into account the two types of rotational motion, i.e., (i) the slow diffusion due to the reptation‐rotation process, and (ii) the rapid fluctuation of the polymer inside the tube. This equation explains the recent experimental finding by Mori et al. that the dc component of the dynamic Kerr constant changes sign from positive to negative at high frequency.