Association of nucleobase-containing ammonium ionenes

Mana Tamami, Keren Zhang, Ninad Dixit, Robert B. Moore, Timothy Edward Long

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Adenine- and thymine-functionalized ammonium ionenes with variation in spacer lengths are successfully synthesized using the Michael addition post-polymerization functionalization. This report describes the influence of pendant spacer length on homo-association and heteroassociation of complementary nucleobase-containing ionenes. The ionene homopolymers and complementary blends with various spacer lengths show a single glass transition temperature. Higher glass transition temperatures are observed for the shorter-spacer ionene homopolymers and their blends. The hydrogen bonding interactions in both blends of adenine-containing ionenes (ionene-A) and thymine-containing ionenes (ionene-T) with both spacer lengths are studied using differential scanning calorimetry (DSC), Fourier-transform infrared (FTIR) spectroscopy, and atomic force microscopy (AFM). DSC analyses do not reveal hydrogen bonding interactions in the ionene blends with the shorter spacer length. In contrast, the longer spacer length ionene blends show the presence of hydrogen bonding interactions and demonstrate that homoassociation is stronger than heteroassociation. FTIR spectroscopy and AFM confirm hydrogen bonding interactions for the longer spacer ionene blends.

Original languageEnglish
Pages (from-to)2337-2344
Number of pages8
JournalMacromolecular Chemistry and Physics
Volume215
Issue number23
DOIs
Publication statusPublished - 2014 Dec 1
Externally publishedYes

Fingerprint

Ammonium Compounds
spacers
Hydrogen bonds
Thymine
Adenine
Homopolymerization
Fourier transform infrared spectroscopy
Differential scanning calorimetry
Atomic force microscopy
thymine
adenines
hydrogen
glass transition temperature
heat measurement
infrared spectroscopy
Polymerization
Association reactions
interactions
atomic force microscopy
scanning

Keywords

  • Hydrogen bonding
  • Miscibility
  • Non-segmented ionenes
  • Nucleobases
  • Spacer lengths

ASJC Scopus subject areas

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

Cite this

Tamami, M., Zhang, K., Dixit, N., Moore, R. B., & Long, T. E. (2014). Association of nucleobase-containing ammonium ionenes. Macromolecular Chemistry and Physics, 215(23), 2337-2344. https://doi.org/10.1002/macp.201400277

Association of nucleobase-containing ammonium ionenes. / Tamami, Mana; Zhang, Keren; Dixit, Ninad; Moore, Robert B.; Long, Timothy Edward.

In: Macromolecular Chemistry and Physics, Vol. 215, No. 23, 01.12.2014, p. 2337-2344.

Research output: Contribution to journalArticle

Tamami, M, Zhang, K, Dixit, N, Moore, RB & Long, TE 2014, 'Association of nucleobase-containing ammonium ionenes', Macromolecular Chemistry and Physics, vol. 215, no. 23, pp. 2337-2344. https://doi.org/10.1002/macp.201400277
Tamami, Mana ; Zhang, Keren ; Dixit, Ninad ; Moore, Robert B. ; Long, Timothy Edward. / Association of nucleobase-containing ammonium ionenes. In: Macromolecular Chemistry and Physics. 2014 ; Vol. 215, No. 23. pp. 2337-2344.
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