CHARACTERISTIC RATIOS OF STEREOIRREGULAR POLYBUTADIENE AND POLYISOPRENE.

Nikos Hadjichristidis*, Xu Zhongde, L. J. Fetters, J. Roovers

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

90 Scopus citations

Abstract

In the reported experimental study, the characteristic ratios of stereoirregular polybutadiene and polyisoprene have been evaluated by a combination of intrinsic viscosity and light-scattering measurements under theta conditions. The polydienes were synthesized by anionic polymerization and thus had near-monodisperse molecular weight distributions and were of uniform microstructure. The polybutadiene C// infinity was found to be 5. 1, which in good agreement with the Abe-Flory predictions. However, the value of 5. 1 for polyisoprene is somewhat higher than predicted by theory.

Original languageEnglish (US)
Pages (from-to)743-750
Number of pages8
JournalJournal of polymer science. Part A-2, Polymer physics
Volume20
Issue number4
StatePublished - Apr 1982
Externally publishedYes

ASJC Scopus subject areas

  • Engineering(all)

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