Well-defined poly(4-vinylbenzocyclobutene): Synthesis by living anionic polymerization and characterization

Georgios Sakellariou, Durairaj Baskaran*, Nikolaos Hadjichristidis, Jimmy W. Mays

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

25 Scopus citations

Abstract

Living anionic polymerization of 4-vinylbenzocylobutene was performed in benzene at room temperature using sec-butyllithium as the initiator. Results of the kinetic studies indicated the termination- and transfer-free nature of the polymerization. Homopolymers with predictable molecular weights and narrow molecular weight distributions were produced, excluding the interference of the cyclobutene rings during initiation and propagation. Thermogravimetric analysis of poly(4-vinylbenzocyclobutene) in air showed a small weight gain at ∼200 °C, a rapid decomposition at ∼455 °C, and a gradual decomposition at ∼566 °C. This behavior was attributed to the formation of radicals from the pendent benzocyclobutene functionality through o-quinodimethane intermediates and simultaneous decomposition/cross-linking reactions at high temperature. The living nature of the polymerization was also examined via sequential copolymerization with butadiene to form diblock copolymers.

Original languageEnglish (US)
Pages (from-to)3525-3530
Number of pages6
JournalMacromolecules
Volume39
Issue number10
DOIs
StatePublished - May 16 2006

ASJC Scopus subject areas

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

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