Ionic organic/inorganic materials. I. Novel cationic siloxane copolymers containing quaternary ammonium salt groups in the backbone

Stela Dragan, Maria Cazacu, Andras Toth

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The synthesis and characterization of some novel cationic siloxanes copolymers containing quaternary ammonium salt (QAS) groups in the backbone is reported in this article. One cationic oligomer having QAS in the backbone and reactive groups like 2,3-epoxypropyl and 2-hydroxy-3-chloropropyl (RCO) as well as 1,3-bis(3-amino-propyl)tetramethyldisiloxane or α,ω-bis(3-aminopropyl)oligodimethylsiloxane (AP) were used as precursors for this goal. Elemental analysis, IR and 1H NMR spectroscopy, thermogravimetric analysis, and X-ray photoelectron spectroscopy were used to characterize the obtained copolymers. The thermal stability of the cationic siloxane copolymer increased when the siloxane oligomer having a high number of siloxane units in the chain (AP) was used as a precursor.

Original languageEnglish
Pages (from-to)3570-3578
Number of pages9
JournalJournal of Polymer Science, Part A: Polymer Chemistry
Volume40
Issue number21
DOIs
Publication statusPublished - Nov 1 2002

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Keywords

  • Cationic siloxane copolymer
  • Crosslinking
  • Membranes
  • Polyaddition reaction
  • Polysiloxanes
  • XPS

ASJC Scopus subject areas

  • Polymers and Plastics
  • Organic Chemistry
  • Materials Chemistry

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