Fabrication of Carboxylic Acid-Terminated Thin Films Using Poly(ethyleneimine) on a Gold Surface

Chance, Jeffrey J.; Purdy, William C.

doi:10.1021/la970081l

Cited by 44 publications

(40 citation statements)

References 34 publications

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“…It is believed that PEI is only physically adsorbed on the Al substrates through van der Waals interaction and hydrogen bond [15][16][17] since the amine group would not react with Al 2 O 3 . The interaction between STA and PEI is through chemical bonds.…”

Section: Preparation and Structure Of The Ultrahydrophobic Filmmentioning

confidence: 99%

“…3c). The first peak at 284.8 eV can be attributed to the CH 2 group in STA, while the second peak at 286.0 eV might originate from the C atoms bonded to the N atoms (O@C-N-C*) [16]. The third peak at 287.6 eV comes from the carboxyl C atom (O@C*-N-C) [16].…”

Section: Preparation and Structure Of The Ultrahydrophobic Filmmentioning

confidence: 99%

“…While the peak at 399.8 eV is assigned to the N atoms in the amine group, the peak appeared at 400.8 eV can be attributed to the N atom bonded to the carbonyl group (O@C-N*) [16,23]. This chemical shift of $1.0 eV due to the electronwithdrawing effect of the carbonyl group is a little bigger than that of 0.8 eV reported in the literature [16]. As to the peak at 402.0 eV, it might come from the oxidation of some amine group in PEI [24].…”

Section: Preparation and Structure Of The Ultrahydrophobic Filmmentioning

confidence: 99%

“…Compared to the ultrahydrophobic systems mentioned above, our preparation method is even simpler. Branched polyethyleneimine {PEI, -[C 2 H 5 NHC 2 H 5 N(C 2 H 5 NH 2 )C 2 H 5 NH] n -}, with a distribution of primary, secondary, and tertiary amine groups in the ratio of 1:2:1, can be easily adsorbed onto any hydroxylated solid surfaces through hydrogen bonds and van der Waals forces [15][16][17]. The primary and secondary amine groups can be readily modified by phosgene, thiophosgene, cyanuric chloride and glutaraldehyde [15].…”

Section: Introductionmentioning

confidence: 99%

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Preparation and characterization of an ultrahydrophobic surface based on a stearic acid self-assembled monolayer over polyethyleneimine thin films

et al. 2003

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A novel ultrahydrophobic ultrathin film was prepared by stearic acid (STA) chemically adsorbed onto the polyethyleneimine (PEI) coated aluminum wafer. The formation and the structure of the films have been characterized by means of water contact angle measurement, ellipsometry, Fourier transformation infrared spectroscopy, and X-ray photoelectron spectroscopy. The static contact angle for water on the surface of this ultrathin organic film was measured to be as high as 166°. Apart from the hydrophobic STA monolayer, the needle-like surface nanostructures with enough roughness was found to be essential for the generation of ultrahydrophobicity. We suggest that a composite interface formed by the needle-like surface nanostructures, water droplet, and air trapped in the crevices is responsible for the superior water-repellent property.

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Section: Preparation and Structure Of The Ultrahydrophobic Filmmentioning

confidence: 99%

Section: Preparation and Structure Of The Ultrahydrophobic Filmmentioning

confidence: 99%

Section: Preparation and Structure Of The Ultrahydrophobic Filmmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Preparation and characterization of an ultrahydrophobic surface based on a stearic acid self-assembled monolayer over polyethyleneimine thin films

et al. 2003

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“…The resulting polymer film would not only be stably combined with the substrate via the polar groups, but also exposed a hydrophobic surface with low surface energy. Though many efforts have been made on the chemical derivatization of functional polymer surface [16][17][18][19][20][21][22][23], few works are engaged in tribological studies. With this perspective in mind, we selected branched polyethyleneimine {abridged as PEI,-[C 2 H 5 NHC 2 H 5 N(C 2 H 5 NH 2 )C 2 H 5 NH] n -} to carry out our research on the derivatization, characterization, and tribological behavior of an amine-terminated polymer surface.…”

Section: Introductionmentioning

confidence: 99%

Derivatization, characterization, and tribological behavior of an amine-terminated polymer surface

Ren

Yang

Zhao

2004

Applied Surface Science

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The derivatization, characterization, and micro-tribological behavior of an amine-terminated polymer surface were investigated. Thus, the heptafluorobutyric anhydride (HFBA) derivatized film was characterized by means of contact-angle measurement and X-ray photoelectron spectroscopy (XPS). It was found that the HFBA-derivatized film was generated on the PEI surface in the presence of a chemical amide bond. The tribological properties were characterized as well. The polymer PEI film had relative high adhesion, friction, and poor anti-wear ability, while the HFBA-derivatized polymer film possessed a very low adhesive force of only about 5.5 nN (a pyramidal Si 3 N 4 tip with radius of curvature about 50 nm was used to measure the adhesion), which was more than an order of magnitude lower than that of the silicon substrate surface. Besides, the HFBAderivatized film registered good friction-reducing ability and thermal stability. Thus, a good alternative method was presented to improve the tribological properties of polymer film by chemisorbing molecules with low surface energy. This makes it feasible for the derivatized polymer film to find promising application in resolving the tribological problems of micro-electromechanical systems (MEMS). #

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Gold–Thiol Self‐Assembled Monolayers

Chechik

Stirling

2009

Patai's Chemistry of Functional Groups

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Introduction Analytical Tools for Monolayer Characterization Preparation of Gold–Thiol Monolayers Structure of Gold–Thiol Monolayers Stability of Monolayers Chemical Reactions in Monolayers Non‐Covalent Interactions of Monolayers with Guest Molecules Thiol Monolayers on the Surface of Gold Colloids Applications

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Fabrication of Carboxylic Acid-Terminated Thin Films Using Poly(ethyleneimine) on a Gold Surface

Cited by 44 publications

References 34 publications

Preparation and characterization of an ultrahydrophobic surface based on a stearic acid self-assembled monolayer over polyethyleneimine thin films

Preparation and characterization of an ultrahydrophobic surface based on a stearic acid self-assembled monolayer over polyethyleneimine thin films

Derivatization, characterization, and tribological behavior of an amine-terminated polymer surface

Gold–Thiol Self‐Assembled Monolayers

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