Linear high molecular weight ladder polymer via fast polycondensation of 5,5′,6,6′-tetrahydroxy- 3,3,3′,3′- tetramethylspirobisindane with 1,4-dicyanotetrafluorobenzene

Du Naiying, Song Jingshe, Gilles P. Robertson, Ingo Pinnau, Michael D. Guiver

Research output: Contribution to journalArticlepeer-review

92 Scopus citations

Abstract

A high molecular weight ladder polymer based on 5,5′,6,6′- tetrahydroxy-3,3,3′3′-tetramethylspirobisindane and 1,4-dicyanotetraflurobenzene has been synthesized by polycondensation under high-intensity mixing conditions at about 155 °C and cyclic-free products were obtained in high yield with low molecular weight distribution (1.7-2.3). The reaction could be completed within a few minutes. The polymer properties were characterized by GPC, 1H NMR, 13C NMR, F NMR, FT-IR, and MALDI-TOF MS. In addition, the mechanical properties, apparent surface areas and gas permeability are also reported. This procedure can also be used for the synthesis of other ladder polymers by irreversible polycondensations of tetraphenols with activated tetrafluoro aromatics.

Original languageEnglish (US)
Pages (from-to)783-788
Number of pages6
JournalMacromolecular Rapid Communications
Volume29
Issue number10
DOIs
StatePublished - May 19 2008

Keywords

  • Cyclic-free
  • Homogenizer
  • Ladder polymer
  • Molecular weight distribution
  • Polycondensation

ASJC Scopus subject areas

  • Organic Chemistry
  • Materials Chemistry
  • Polymers and Plastics

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