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

doi:10.1016/0040-6090(94)90553-3

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 journal › Article › peer-review

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 language	English
Pages (from-to)	700-704
Number of pages	5
Journal	Thin Solid Films
Volume	244
Issue number	1-2
DOIs	https://doi.org/10.1016/0040-6090(94)90553-3 https://doi.org/10.1016/0040-6090(94)90553-3
Publication status	Published - 1994 May 1
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Surfaces and Interfaces
Surfaces, Coatings and Films
Metals and Alloys
Materials Chemistry

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title = "Molecular configuration of isotactic PMMA Langmuir-Blodgett films observed by scanning tunnelling microscopy",

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.",

author = "Kim, {Jang Joo} and Jung, {Sang Don} and Roh, {Hee Sook} and Ha, {Jeong Sook}",

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AU - Kim, Jang Joo

AU - Jung, Sang Don

AU - Roh, Hee Sook

AU - Ha, Jeong Sook

PY - 1994/5/1

Y1 - 1994/5/1

N2 - 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.

AB - 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.

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

Abstract

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