Liquid crystal codendrimers with a statistical distribution of phenolic and mesogenic groups

Behavior as langmuir and langmuir - Blodgett films

Ignaty Leshchiner, Elena Agina, Natalia Boiko, Robert M. Richardson, Karen J. Edler, Valery P. Shibaev

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

The first series of carbosilane liquid crystal codendrimers with groups of different polarity has been synthesized. The chemical structure of the newly synthesized materials and the composition of the codendrimers were studied by NMR spectroscopy and MALDI-TOF MS. It was found that the codendrimers tend to form stable Langmuir films at the air-water surface. The influence of composition and generation number on surface pressure-surface area isotherms and film stability was studied. Brewster angle microscopy confirmed the different phase behavior for monolayers of different codendrimer composition and generation number. It was found that side groups of fifth-generation codendrimers do not segregate, unlike those of lower generations. Langmuir-Blodgett films on solid substrates were obtained by the vertical dipping method. X-ray diffraction showed that the codendrimers with 75% of hydrophobic mesogenic terminal groups formed ordered layers parallel to the substrate.

Original languageEnglish
Pages (from-to)11082-11088
Number of pages7
JournalLangmuir
Volume24
Issue number19
DOIs
Publication statusPublished - 7 Oct 2008

Fingerprint

group dynamics
Liquid Crystals
Langmuir Blodgett films
Langmuir-Blodgett films
statistical distributions
Liquid crystals
liquid crystals
Chemical analysis
Substrates
Phase behavior
Nuclear magnetic resonance spectroscopy
Isotherms
Brewster angle
Monolayers
Microscopic examination
dipping
surface water
X ray diffraction
polarity
isotherms

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Spectroscopy
  • Electrochemistry

Cite this

Liquid crystal codendrimers with a statistical distribution of phenolic and mesogenic groups : Behavior as langmuir and langmuir - Blodgett films. / Leshchiner, Ignaty; Agina, Elena; Boiko, Natalia; Richardson, Robert M.; Edler, Karen J.; Shibaev, Valery P.

In: Langmuir, Vol. 24, No. 19, 07.10.2008, p. 11082-11088.

Research output: Contribution to journalArticle

Leshchiner, Ignaty ; Agina, Elena ; Boiko, Natalia ; Richardson, Robert M. ; Edler, Karen J. ; Shibaev, Valery P. / Liquid crystal codendrimers with a statistical distribution of phenolic and mesogenic groups : Behavior as langmuir and langmuir - Blodgett films. In: Langmuir. 2008 ; Vol. 24, No. 19. pp. 11082-11088.
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