Synthesis and properties of metallo-supramolecular poly(p-xylylene)s

Daniel Knapton, Parameswar K. Iyer, Stuart J. Rowan, Christoph Weder

Research output: Contribution to journalArticle

42 Citations (Scopus)

Abstract

The self-assembly polymerization of ditopic macromolecules via metal-ligand binding offers a facile route to the preparation of metallo-supramolecular polymers. We herein report the utilization of this approach for the synthesis of arylene alkylene metallopolymers, which combine ease of processing with good high-temperature stability. The materials are based on a poly(2,5-dioctyloxy-p- xylylene) macromonomer that was prepared by in-situ end-capping of a low-molecular-weight poly(2,5-dioctyloxy-p-phenylene ethynylene) core with 2,6-bis(1′-methylbenzimidazolyl)-4-ethynylpyridine (Mebip) ligands and subsequent reduction under Hahn diimide conditions. The supramolecular polymerization of this macromonomer with equimolar amounts of Zn 2+ or Fe 2+ and a small amount of La 3+, which can bind three Mebip ligands and causes cross-linking and/or branching, resulted in materials which offer excellent mechanical properties. The thermomechanical properties of the new polymers were investigated by a variety of techniques, including modulated differential scanning calorimetry, dynamic mechanical thermoanalysis, and thermogravimetric analysis.

Original languageEnglish
Pages (from-to)4069-4075
Number of pages7
JournalMacromolecules
Volume39
Issue number12
DOIs
Publication statusPublished - 2006 Jun 13
Externally publishedYes

Fingerprint

Ligands
Polymers
Polymerization
Macromolecules
Self assembly
Thermoanalysis
Thermogravimetric analysis
Differential scanning calorimetry
Metals
Molecular weight
Mechanical properties
Processing
poly(p-xylylene)
Temperature
ethynylpyridine

ASJC Scopus subject areas

  • Materials Chemistry

Cite this

Knapton, D., Iyer, P. K., Rowan, S. J., & Weder, C. (2006). Synthesis and properties of metallo-supramolecular poly(p-xylylene)s. Macromolecules, 39(12), 4069-4075. https://doi.org/10.1021/ma060500y

Synthesis and properties of metallo-supramolecular poly(p-xylylene)s. / Knapton, Daniel; Iyer, Parameswar K.; Rowan, Stuart J.; Weder, Christoph.

In: Macromolecules, Vol. 39, No. 12, 13.06.2006, p. 4069-4075.

Research output: Contribution to journalArticle

Knapton, D, Iyer, PK, Rowan, SJ & Weder, C 2006, 'Synthesis and properties of metallo-supramolecular poly(p-xylylene)s', Macromolecules, vol. 39, no. 12, pp. 4069-4075. https://doi.org/10.1021/ma060500y
Knapton, Daniel ; Iyer, Parameswar K. ; Rowan, Stuart J. ; Weder, Christoph. / Synthesis and properties of metallo-supramolecular poly(p-xylylene)s. In: Macromolecules. 2006 ; Vol. 39, No. 12. pp. 4069-4075.
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