Preparation and Characterization of Two-Dimensional Cross-Linked Monolayers and Langmuir-Blodgett Films of Oligo(dimethylsiloxane) Copolymer

Masashi Kunitake, Takayuki Nishi, Hideyuki Yamamoto, Kenji Nasu, Osamu Manabe, Naotoshi Nakashima

    Research output: Contribution to journalArticlepeer-review

    26 Citations (Scopus)

    Abstract

    Novel amphiphilic siloxane copolymers (P1-P10) were synthesized from an oligo(dimethylsiloxane) monomer, 1, and (trimethylammonio)ethyl acrylate, 2. These compounds could form stable monolayers on the air/water interface in the absence and presence of potassium poly(vinylsulfate) (PVSK) in the subphase. The monolayers prepared in the presence of PVSK were two-dimensionally cross-linked at the interface and showed more densely packed structure than none-cross-linked monolayer; however, the direct observation of the monolayer using a fluorescence microscope revealed that the cross-linking induced disorder in the monolayer structures. On the other hand, when the anionic polymer was injected into the subphase after the monolayer formation at the interface, homogeneous microscope images were obtained. These monolayers with two-dimensional network structures could be transferred onto solid substrates by the conventional Langmuir–Blodgett (LB) technique.

    Original languageEnglish
    Pages (from-to)3207-3212
    Number of pages6
    JournalLangmuir
    Volume10
    Issue number9
    DOIs
    Publication statusPublished - Sep 1 1994

    All Science Journal Classification (ASJC) codes

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

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