Determining persistence length by size-exclusion chromatography

  title={Determining persistence length by size-exclusion chromatography},
  author={Thomas H. Mourey and Kim Le and T. Grenfell Bryan and Shiying Zheng and Grace Ann Bennett},
Abstract Several methods for determining persistence length from size-exclusion chromatography data are evaluated for a stiff polymer, poly( n -hexyl isocyanate) (PHIC), and the more flexible poly[2,7-(9,9 di- n -hexylfluorene)]. The molar mass dependence of the root-mean-square radius obtained from light scattering detection is used to calculate the persistence length of PHIC, based on the Kratky–Porod wormlike chain model. The persistence length estimate is in reasonable agreement with… CONTINUE READING