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Viscosity and light scattering measurements of poly(2‐fluoro‐ p ‐phenylene‐2‐fluoroterephthalamide)
Author(s) -
Grob Markus C.,
Schurtenberger Peter,
Suter Ulrich W.
Publication year - 1995
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.1995.021960503
Subject(s) - methanesulfonic acid , polymer chemistry , intrinsic viscosity , phenylene , polymer , viscosity , hydrodynamic radius , chemistry , light scattering , poly(p phenylene) , scattering , dynamic light scattering , materials science , organic chemistry , optics , physics , composite material , nanotechnology , nanoparticle , copolymer
We report on the characterization of the conformational properties of the fully aromatic polyamides poly(2‐fluoro‐ p ‐phenylene‐2‐fluoroterephthalamide) (FPFT) in methanesulfonic acid using dynamic and static light scattering and viscosity measurements. The results are in quantitative agreement with a model of polydisperse wormlike chains for the solution conformation of FPFT. A comparison with the results obtained for the unsubstituted polymer poly( p ‐phenylenterephthalamide) (PPTA) under the same experimental conditions indicates that the introduction of halogen substituents on the aromatic rings has only a weak influence on the chain flexibility.