Ultrathin self-assembled polymeric films on solid surfaces. 2. Formation of 11-(n-pentyldithio) undecanoate-bearing polyacrylate monolayers on gold

Journal Article · Mon Nov 01 00:00:00 EST 1993 · Langmuir; (United States)

DOI:https://doi.org/10.1021/la00035a072· OSTI ID:5550858

Sun, F; Grainger, D W ^[1]; Castner, D G ^[2]

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1. Oregon Graduate Inst. of Science and Technology, Portland, OR (United States)
2. Univ. of Washington, Seattle, WA (United States)

Polymeric monolayers of poly(methoxyethyl acrylate-co-hydroxyethyl acrylate) copolymers derivatized with 11-(n-pentyldithio)undecanoate side chains on gold surfaces have been fabricated by spontaneous self-assembly from organic solution. Experimental evidence derived from a combination of ellipsometry, polarized reflection infrared spectroscopy, and X-ray photoelectron spectroscopy indicates that two-dimensional polymer films assemble on gold surfaces by multipoint attachment. Further experiments systematically changing polymer composition and solution concentrations for monolayer preparation reveal that polymer assemblies created by adsorption have less structural anisotropy than their corresponding conventional monomeric organic alkyl disulfides. However, these self-assembled polymer films show enhanced thermal stability in wet environments over films of monomeric organic analogs, indicating that polyfunctional polymer anchoring effects greatly improve integral adhesion and binding stabilities of ultrathin polymer assemblies. 29 refs., 10 figs., 5 tabs.

• OSTI ID: 5550858
• Journal Information: Langmuir; (United States), Vol. 9:11; ISSN 0743-7463
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
COPOLYMERS
DERIVATIZATION
ADSORPTION
ELLIPSOMETRY
EXPERIMENTAL DATA
GOLD
INFRARED SPECTRA
POLYACRYLATES
THIN FILMS
X-RAY SPECTROSCOPY
CHEMICAL REACTIONS
DATA
ELEMENTS
ESTERS
FILMS
INFORMATION
MEASURING METHODS
METALS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC POLYMERS
POLYMERS
POLYVINYLS
SORPTION
SPECTRA
SPECTROSCOPY
TRANSITION ELEMENTS
400201* - Chemical & Physicochemical Properties
400102 - Chemical & Spectral Procedures