Electrosynthesised thin polymer films: the role of XPS in the design of application oriented innovative materials

Sabbatini, Luigia; Malitesta, C.; Giglio, Elvira De; Losito, Ilario; Torsi, Luisa; Zambonin, P. G.

doi:10.1016/s0368-2048(99)00039-0

Cited by 47 publications

(25 citation statements)

References 45 publications

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“…The peak at 285.8 eV was assigned to C-N groups in the pyrrole rings [35][36][37]. The binding energy peak at 287.8 eV was ascribed to carbonyl C=O groups [38,39]. The appearance of C=O groups was mainly due to the presence of pyrrole overoxidation during chemical polymerization in aqueous media, as commented before.…”

Section: Resultsmentioning

confidence: 56%

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Chemical, electrical and electrochemical characterization of hybrid organic/inorganic polypyrrole/PW12O403− coating deposited on polyester fabrics

Molina

Fernández

Río

et al. 2011

Applied Surface Science

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in electronic textiles such as antistatic clothing. X-ray photoelectron spectroscopy (XPS) studies have been done to quantify the amount of counter ion that remains in the polymer matrix and determine the doping ratio (N + /N) after the different tests. Scanning electron microscopy (SEM) was also used to observe morphological differences after the different tests. Surface resistivity changes were measured by means of electrochemical impedance spectroscopy (EIS). Scanning electrochemical microscopy (SECM) was employed to measure changes in electroactivity after the different tests.Higher pHs caused a decrease of the doping ratio (N + /N), the loss of part of the counter ions and the decrease of its conducting and electrocatalytic properties. The stability in acid, neutral media and after the washing test was good. Only at pH 13 the loss of the counter ion was widespread and there was a decrease of its conducting and catalytic properties; although the fabrics continued acting mainly as a conducting material.

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Section: Resultsmentioning

confidence: 56%

“…The peak at 399.9 eV was assigned to the neutral amine-like (-NH-) structure which is characteristic of pyrrolylium nitrogen [35,38,43]. The peak at 401.…”

Section: Resultsmentioning

confidence: 99%

Chemical, electrical and electrochemical characterization of hybrid organic/inorganic polypyrrole/PW12O403− coating deposited on polyester fabrics

Molina

Fernández

Río

et al. 2011

Applied Surface Science

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show abstract

“…peak at 285.6 eV is assigned to C-N groups in the pyrrole rings [30][31][32]. The binding energy peak at 287.4 eV is ascribed to carbonyl C=O groups [33,34]. The appearance of C=O groups is mainly due to the presence of pyrrole overoxidation during chemical polymerization in aqueous media, as commented before.…”

Section: Xps Measurementsmentioning

confidence: 58%

“…The peak at 399.7 eV was assigned to the neutral amine-like (-NH-) structure [30,33,40]. The peak at 401.9 eV was attributed to bipolaronic positively charged nitrogen, =NH + or N 2+ .…”

Section: Xps Measurementsmentioning

confidence: 99%

Electrochemical synthesis of polyaniline on conducting fabrics of polyester covered with polypyrrole/PW12O403−. Chemical and electrochemical characterization

et al. 2011

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“…Organic conducting polymers like polyaniline, polypyrrole, polythiophene, and poly(o-phenylenediamine) (PPD) naturally have both a pore size and a charged group that prevent interfering compounds from permeating them, so they have drawn wide interest in biosensor fabrication in recent years. By using different electropolymerizing conditions, including monomer concentration, solvent conductivity, pH value, scanning-potential range, and applied scanning cycle, dif-ferent characteristics and functions of the conducting films can be obtained [2][3][4][5][6][7][8][9]. Differences in electropolymerized polymer film include thickness, surface roughness, pH response [4,5], electron-transfer kinetics [3,7], protection against metal corrosion [6], permselectivity for a dissolved species [2], and electrochromic properties [8].…”

Section: Introductionmentioning

confidence: 99%

Estimating the thickness of hydrated ultrathin poly(o-phenylenediamine) film by atomic force microscopy

Chang

2004

Analytica Chimica Acta

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A novel method to measure ultrathin poly(o-phenylenediamine) (PPD) film electropolymerized on gold electrode in liquid was developed.It is based on the force versus distance curve (force curve) of atomic force microscopy (AFM). When 1-0.25 m/s was chosen as the rising rate of the scanner, and 50% of the confidence interval (CI) as the qualifying threshold value, the thickness of the hydrated polymer film could be calculated. This result was compared with one obtained from an AFM image. A step-like electrode fabricated by a photolithographic process was used. The height difference of the electrode before and after the PPD coating was imaged in liquid, and then the real thickness, 19.6 ± 5.2 nm, was obtained. The sample was also measured by estimating the transition range of the force curve of hydrated PPD film, and the thickness of the hydrated PPD film was determined to be 19.3 ± 8.2 nm. However, the results calculated by integrating the electropolymerized charge for the oxidation process of o-phenylenediamine (o-PD) was only one-third as large as it was when using the two previously described methods. This indicated that the structure of hydrated PPD film might have been swollen.

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Electrosynthesised thin polymer films: the role of XPS in the design of application oriented innovative materials

Cited by 47 publications

References 45 publications

Chemical, electrical and electrochemical characterization of hybrid organic/inorganic polypyrrole/PW12O403− coating deposited on polyester fabrics

Chemical, electrical and electrochemical characterization of hybrid organic/inorganic polypyrrole/PW12O403− coating deposited on polyester fabrics

Electrochemical synthesis of polyaniline on conducting fabrics of polyester covered with polypyrrole/PW12O403−. Chemical and electrochemical characterization

Estimating the thickness of hydrated ultrathin poly(o-phenylenediamine) film by atomic force microscopy

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