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The characteristic ratios of stereoirregular polybutadiene and polyisoprene
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AbstractThe characteristic ratios of stereoirregular polybutadiene and polyisoprene have been evaluated by a combination of intrinsic viscosity and light‐scattering measurements under θ conditions. The polydienes were synthesized by anionic polymerization and thus had near‐monodisperse molecular weight distributions and were of uniform microstructure. The polybutadiene C∞ was found to be 5.1, which is in good agreement with the Abe–Flory predictions. However, the value of 5.1 for polyisoprene is somewhat higher than prediced by theory.
Title: The characteristic ratios of stereoirregular polybutadiene and polyisoprene
Description:
AbstractThe characteristic ratios of stereoirregular polybutadiene and polyisoprene have been evaluated by a combination of intrinsic viscosity and light‐scattering measurements under θ conditions.
The polydienes were synthesized by anionic polymerization and thus had near‐monodisperse molecular weight distributions and were of uniform microstructure.
The polybutadiene C∞ was found to be 5.
1, which is in good agreement with the Abe–Flory predictions.
However, the value of 5.
1 for polyisoprene is somewhat higher than prediced by theory.
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