Viscosity–temperature relationships for linear and 12‐arm star polystyrenes in dilute solution

Maria Liouni*, Costas Touloupis, Nikolaos Hadjichristidis, Jimmy W. Mays

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

The actual viscosities (cP) of dilute solutions of linear and 12‐arm star polystyrenes were measured in benzene, a good solvent, and cyclohexane, a poor to moderate solvent, as a function of temperature. The equations of Moore, previously established for solutions of linear polymers, were also found to be valid for star polystyrenes. A branching parameter b was defined which is essentially the same as g′ = [η]br/[η]1. The values of b found in benzene are close to the value of g′ for 12‐arm star polystyrene in toluene, another thermodynamically good solvent. It thus appears that Moore's relationships have at least limited utility in studying branching in polymers.

Original languageEnglish (US)
Pages (from-to)2699-2708
Number of pages10
JournalJournal of Applied Polymer Science
Volume37
Issue number9
DOIs
StatePublished - Jan 1 1989

ASJC Scopus subject areas

  • Chemistry(all)
  • Surfaces, Coatings and Films
  • Polymers and Plastics
  • Materials Chemistry

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