Improved method for the preparation of carboxylic acid and amine terminated self-assembled monolayers of alkanethiolates

Hua Wang, Shengfu Chen, Lingyan Li, Shaoyi Jiang

Research output: Contribution to journalArticle

201 Citations (Scopus)

Abstract

We present an improved method to prepare carboxylic acid (COOH) and amine (NH 2) terminated self-assembled monolayers (SAMs) of alkanethiolates. In this method, a small amount of CF 3COOH(for COOH-SAM) or N(CH 2CH 3) 3 (for NH 2-SAM) is added into the ethanolic solution of alkanethiols during SAM formation. The freshly formed COOH- and NH 2-SAMs are then rinsed with an ethanolic solution of NH 4OH or CH 3COOH, respectively. Both SAMs prepared with the improved method show better quality in terms of surface chemical composition, roughness, and wettability as measured by X-ray photoelectron spectroscopy, atomic force microscopy, and contact angle, respectively. The formation of better SAMs can be attributed to the disruption of interplane hydrogen bonds.

Original languageEnglish (US)
Pages (from-to)2633-2636
Number of pages4
JournalLangmuir
Volume21
Issue number7
DOIs
StatePublished - Mar 29 2005
Externally publishedYes

Fingerprint

Self assembled monolayers
Carboxylic Acids
Carboxylic acids
carboxylic acids
Amines
amines
methylidyne
preparation
wettability
chemical composition
roughness
photoelectron spectroscopy
atomic force microscopy
hydrogen bonds
x rays
Contact angle
Wetting
Atomic force microscopy
Hydrogen bonds
X ray photoelectron spectroscopy

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Colloid and Surface Chemistry

Cite this

Improved method for the preparation of carboxylic acid and amine terminated self-assembled monolayers of alkanethiolates. / Wang, Hua; Chen, Shengfu; Li, Lingyan; Jiang, Shaoyi.

In: Langmuir, Vol. 21, No. 7, 29.03.2005, p. 2633-2636.

Research output: Contribution to journalArticle

Wang, Hua ; Chen, Shengfu ; Li, Lingyan ; Jiang, Shaoyi. / Improved method for the preparation of carboxylic acid and amine terminated self-assembled monolayers of alkanethiolates. In: Langmuir. 2005 ; Vol. 21, No. 7. pp. 2633-2636.
@article{25c92ef9aa5048a3ab6ab64ed1210908,
title = "Improved method for the preparation of carboxylic acid and amine terminated self-assembled monolayers of alkanethiolates",
abstract = "We present an improved method to prepare carboxylic acid (COOH) and amine (NH 2) terminated self-assembled monolayers (SAMs) of alkanethiolates. In this method, a small amount of CF 3COOH(for COOH-SAM) or N(CH 2CH 3) 3 (for NH 2-SAM) is added into the ethanolic solution of alkanethiols during SAM formation. The freshly formed COOH- and NH 2-SAMs are then rinsed with an ethanolic solution of NH 4OH or CH 3COOH, respectively. Both SAMs prepared with the improved method show better quality in terms of surface chemical composition, roughness, and wettability as measured by X-ray photoelectron spectroscopy, atomic force microscopy, and contact angle, respectively. The formation of better SAMs can be attributed to the disruption of interplane hydrogen bonds.",
author = "Hua Wang and Shengfu Chen and Lingyan Li and Shaoyi Jiang",
year = "2005",
month = "3",
day = "29",
doi = "10.1021/la046810w",
language = "English (US)",
volume = "21",
pages = "2633--2636",
journal = "Langmuir",
issn = "0743-7463",
publisher = "American Chemical Society",
number = "7",

}

TY - JOUR

T1 - Improved method for the preparation of carboxylic acid and amine terminated self-assembled monolayers of alkanethiolates

AU - Wang, Hua

AU - Chen, Shengfu

AU - Li, Lingyan

AU - Jiang, Shaoyi

PY - 2005/3/29

Y1 - 2005/3/29

N2 - We present an improved method to prepare carboxylic acid (COOH) and amine (NH 2) terminated self-assembled monolayers (SAMs) of alkanethiolates. In this method, a small amount of CF 3COOH(for COOH-SAM) or N(CH 2CH 3) 3 (for NH 2-SAM) is added into the ethanolic solution of alkanethiols during SAM formation. The freshly formed COOH- and NH 2-SAMs are then rinsed with an ethanolic solution of NH 4OH or CH 3COOH, respectively. Both SAMs prepared with the improved method show better quality in terms of surface chemical composition, roughness, and wettability as measured by X-ray photoelectron spectroscopy, atomic force microscopy, and contact angle, respectively. The formation of better SAMs can be attributed to the disruption of interplane hydrogen bonds.

AB - We present an improved method to prepare carboxylic acid (COOH) and amine (NH 2) terminated self-assembled monolayers (SAMs) of alkanethiolates. In this method, a small amount of CF 3COOH(for COOH-SAM) or N(CH 2CH 3) 3 (for NH 2-SAM) is added into the ethanolic solution of alkanethiols during SAM formation. The freshly formed COOH- and NH 2-SAMs are then rinsed with an ethanolic solution of NH 4OH or CH 3COOH, respectively. Both SAMs prepared with the improved method show better quality in terms of surface chemical composition, roughness, and wettability as measured by X-ray photoelectron spectroscopy, atomic force microscopy, and contact angle, respectively. The formation of better SAMs can be attributed to the disruption of interplane hydrogen bonds.

UR - http://www.scopus.com/inward/record.url?scp=16244391144&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=16244391144&partnerID=8YFLogxK

U2 - 10.1021/la046810w

DO - 10.1021/la046810w

M3 - Article

C2 - 15779923

AN - SCOPUS:16244391144

VL - 21

SP - 2633

EP - 2636

JO - Langmuir

JF - Langmuir

SN - 0743-7463

IS - 7

ER -