Synthesis of 12,12-ammonium ionenes with functionality for chain extension and cross-linking via UV irradiation

Sharlene R. Williams, Zsófia Barta, Sean M. Ramirez, Timothy Edward Long

Research output: Contribution to journalArticle

11 Citations (Scopus)


A novel synthetic methodology for preparing chain-extended and cross-linked ionenes using UV irradiation is described. 12,12-Ammonium ionenes were functionalized with either cinnamate or styrenic functionality at the chain ends and were subsequently exposed to UV irradiation. In addition, a novel copolymer (poly(cinDMPC-co-bocDMPC)) was mixed with the cinnamate-functionalized 12,12-ammonium ionene to prepare photo-cross-linked networks. The UV irradiation process was monitored via UV-Vis spectroscopy after each exposure. The chain-extended 12,12-ammonium ionene possessed superior tensile properties compared to the original 12,12-ammonium ionene. Successful cross-linking was confirmed with solubility testing of the thin films in methanol. The results indicated that photo-cross-linked 12,12-ammonium ionenes offer potential in membrane technology applications.

Original languageEnglish
Pages (from-to)555-564
Number of pages10
JournalMacromolecular Chemistry and Physics
Issue number7
Publication statusPublished - 2009 Apr 2
Externally publishedYes



  • Chain
  • Cross-linked polymers
  • Ionenes
  • Mechanical properties
  • Structure-property relationships
  • UV irradiation

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Polymers and Plastics
  • Organic Chemistry
  • Materials Chemistry

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