Temperature dependence of unperturbed dimensions for stereoirregular 1,4‐polybutadiene and poly(α‐methylstyrene)

Jimmy W. Mays*, Nikolaos Hadjichristidis, William W. Graessley, Lewis J. Fetters

*Corresponding author for this work

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32 Scopus citations

Abstract

The temperature coefficient of chain dimensions, d ln〈r20/dT, was determined for stereoirregular 1,4‐polybutadiene and poly(α‐methylstyrene) via dilute solution viscometry. The 1,4‐polybutadiene was examined in oligomeric 1,4‐polybutadiene (an athermal solvent), and poly(α‐methylstyrene) was evaluated under near‐theta conditions using 1‐chloro‐n‐alkanes as solvents. Both approaches minimize the potential for influence by specific solvent effects. The resulting temperature coefficients, −0.10 × 10−3 deg−1 for 1,4‐polybutadiene and −0.30 × 10−3 deg−1 for poly(α‐methylstyrene) are in excellent agreement with rotational isomeric state calculations.

Original languageEnglish (US)
Pages (from-to)2553-2564
Number of pages12
JournalJournal of Polymer Science Part B: Polymer Physics
Volume24
Issue number11
DOIs
StatePublished - Jan 1 1986

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Polymers and Plastics
  • Materials Chemistry

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