Molecular configuration of isotactic PMMA Langmuir-Blodgett films observed by scanning tunnelling microscopy

Jang Joo Kim, Sang Don Jung, Hee Sook Roh, Jeong Sook Ha

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

The molecular configuration of isotactic PMMA Langmuir-Blodgett (LB) films was investigated with scanning tunnelling microscopy (STM). STM images of the isotactic PMMA LB films, transferred at the surface pressure of 15 mN m -1, show a closely packed well-ordered arrangement in which two phases with helical and linear chain configurations are mixed. The appearance of the STM images and the width and pitch of the helix indicate that the transition at the surface pressure of 8 mN m -1 corresponds to formation of the right-handed 5 1 single-strand helix. The transformation process can be explained by a one-dimensional growth.

Original languageEnglish
Pages (from-to)700-704
Number of pages5
JournalThin Solid Films
Volume244
Issue number1-2
Publication statusPublished - 1994 May 15
Externally publishedYes

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Langmuir Blodgett films
Scanning tunneling microscopy
Polymethyl Methacrylate
Langmuir-Blodgett films
scanning tunneling microscopy
helices
configurations
strands

ASJC Scopus subject areas

  • Surfaces and Interfaces
  • Condensed Matter Physics
  • Surfaces, Coatings and Films

Cite this

Molecular configuration of isotactic PMMA Langmuir-Blodgett films observed by scanning tunnelling microscopy. / Kim, Jang Joo; Jung, Sang Don; Roh, Hee Sook; Ha, Jeong Sook.

In: Thin Solid Films, Vol. 244, No. 1-2, 15.05.1994, p. 700-704.

Research output: Contribution to journalArticle

Kim, Jang Joo ; Jung, Sang Don ; Roh, Hee Sook ; Ha, Jeong Sook. / Molecular configuration of isotactic PMMA Langmuir-Blodgett films observed by scanning tunnelling microscopy. In: Thin Solid Films. 1994 ; Vol. 244, No. 1-2. pp. 700-704.
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