Langmuir and Langmuir-Blodgett-Kuhn Films of Poly(vinylidene fluoride) and Poly(vinylidene fluoride-co-trifluoroethylene) Alternated with Poly(methyl methacrylate) or Poly(octadecyl methacrylate)

Rigoberto C. Advincula, Wolfgang Knoll, Lev Blinov, Curtis W. Frank

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Langmuir and Langmuir-Blodgett-Kuhn (LBK) films of poly(vinylidene fluoride) (PVDF) and poly(vinylidene fluoride -co- trifluoroethylene) (co-PVDF) were investigated for their morphological and layer ordering behavior. Such materials are of interest because of their possible use as ultrathin ferroelectric switching materials. Our studies involved the use of various spectroscopic and microscopic methods, the foremost of which are surface plasmon spectroscopy (SPS) and atomic force microscopy (AFM). The multilayer film properties of co-PVDF, as alternated with poly(methyl methacrylate) (PMMA) and poly(octadecyl methacrylate) (PODMA), were also investigated in comparison to bulk properties. This was done in order to create two-dimensional structures where the domain behavior and blending characteristics of co-PVDF can be studied in restricted geometries. The co-PVDF monolayer is observed to be highly viscous with isotherm and domain formation dependent upon the spreading conditions and experimental configuration. The PVDF polymer does not form a true monolayer at all, although multilayers can be fabricated by vertical deposition as verified by ellipsometry, X-ray diffraction and SPS. The possible phase transitions of the copolymer and alternate films were investigated by applying an insitu surface plasmon spectroscopy heating probe. A phase transition observed for the copolymer film at 88 °C is suggested to be related to the ferro-paraelectric transition (Curie temperature). AFM images correlated with the morphological properties and transfer behavior of the copolymer and the blend at the air-water interface.

Original languageEnglish
Pages (from-to)192-205
Number of pages14
JournalACS Symposium Series
Volume695
Publication statusPublished - 1998
Externally publishedYes

Fingerprint

Langmuir Blodgett films
Polymethyl Methacrylate
Polymethyl methacrylates
Copolymers
Spectroscopy
Monolayers
Atomic force microscopy
Phase transitions
Multilayer films
Ellipsometry
Curie temperature
poly(octadecyl methacrylate)
polyvinylidene fluoride
trifluoroethene
Superconducting transition temperature
Ferroelectric materials
Isotherms
Polymers
Multilayers
Heating

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

Cite this

Langmuir and Langmuir-Blodgett-Kuhn Films of Poly(vinylidene fluoride) and Poly(vinylidene fluoride-co-trifluoroethylene) Alternated with Poly(methyl methacrylate) or Poly(octadecyl methacrylate). / Advincula, Rigoberto C.; Knoll, Wolfgang; Blinov, Lev; Frank, Curtis W.

In: ACS Symposium Series, Vol. 695, 1998, p. 192-205.

Research output: Contribution to journalArticle

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