Poly(5-hydroxyoctenylene) and Its Derivatives: Synthesis via Metathesis Polymerization of an Organoborane Monomer

S. Ramakrishnan, Tze-chiang Chung

Research output: Contribution to journalArticlepeer-review

43 Scopus citations

Abstract

The synthesis of a new monomer, (5-cyclooctenyl)diethylborane, and its polymerization by ring-opening metathesis are reported. This resultant polyborane rendered a novel polymer, poly(5- hydroxyoctenylene), upon oxidation. The hydroboration/oxidation reactions can be controlled to give polymers with varying amounts of hydroxyl groups on the backbone. The structure of the polyalcohols was confirmed bylH NMR and13C NMR spectroscopy. In addition,13C NMR spectroscopy confirmed the presence of various 1,4-, 1,5-, and 1,6-diol sequences in the completely hydroxylated polymer. The glass transition temperatures of the polymers were fairly low and lie between 10 and 45 °C. The polymers are thermally stable and begin to lose weight only at temperatures above 400 °C, compared to polyvinyl alcohol), which undergoes weight loss at temperatures as low as 300 °C.

Original languageEnglish (US)
Pages (from-to)4519-4524
Number of pages6
JournalMacromolecules
Volume23
Issue number21
DOIs
StatePublished - Jan 1 1990

All Science Journal Classification (ASJC) codes

  • Organic Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry
  • Materials Chemistry

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