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Model of a polymer chain twisted inside a statistical segment. Poly(3‐hexylthiophene) in chloroform solutions |
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| Authors: | Stanislav V Bushin Marina A Bezrukova Guy Koeckelberghs André Persoons Alexander V Yakimansky |
| Affiliation: | 1. Institute of Macromolecular Compounds, Russian Academy of Sciences, Bolshoi prospect 31, St Petersburg, Russia;2. Department of Chemistry, Katholieke Universiteit Leuven, Celestijnenlaan 200D, Heverlee, Belgium;3. Saint‐Petersburg National Research University of Information Technologies, Mechanics, and Optics, Kronverkskii prospect 49, St Petersburg, Russia |
| Abstract: | A set of hydrodynamic methods in extremely dilute solutions (determination of intrinsic viscosity η ], translational diffusion D and flotation in a centrifugal field s ) was used in the studies of conformational properties, dimensions and equilibrium rigidity of individual molecules of a series of samples of poly(3‐hexylthiophene). Absolute molecular masses M sD were determined. The Mark–Kuhn–Houwink equations for the range of M sD from 2240 to 15 300 g mol?1 are given. For the first time, an analysis of conformational properties and equilibrium flexibility of poly(3‐hexylthiophene) molecules was carried out using the model of a statistical segment containing a twisted polymer chain. © 2017 Society of Chemical Industry |
| Keywords: | hydrodynamic properties macromolecular conformation statistical segment containing twisted polymer chain macromolecular linear mass density specific hydrodynamic volume hydrodynamic diameter |
