In situ conductance and in situ ATR-FTIR study of poly(N-methylaniline) in aqueous solution

Wei, Di; Espindola, Pamela; Lindfors, Tom; Kvarnström, Carita; Heınze, Jürgen; Ivaska, Ari

doi:10.1016/j.jelechem.2006.12.017

Cited by 18 publications

(13 citation statements)

References 34 publications

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“…In recent years using this technique, different polymer films derived from polyfurans, PTh, PPy, PANI, polyalcoxythiophenes to organometallics polymers, dendrimer structures and conjugated radical polymers, have been examined. [81,[92][93][94][95][96][97][98][99][100][101][102][103][104][105][106][107][108][109][110] Conductance behavior, charge/discharge process, n-doping and charge trapping are the most common phenomena studied. Commonly these studies have been carried out using low scan rate values (v � 10 mV s À 1 ) in order to obtain reliable data, because some structural changes during the charge/discharge process are slow and using higher scan rates unreproducible data could be obtained.…”

Section: In Situ Electrochemical-conductance Measurements On Depositementioning

confidence: 99%

“…In recent years using this technique, different polymer films derived from polyfurans, PTh, PPy, PANI, polyalcoxythiophenes to organometallics polymers, dendrimer structures and conjugated radical polymers, have been examined . Conductance behavior, charge/discharge process, n ‐doping and charge trapping are the most common phenomena studied.…”

Section: Chemical Aspects Related To In Situ Electrochemical‐conductamentioning

confidence: 99%

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Analysis of Conjugated Polymers Conductivity by in situ Electrochemical‐Conductance Method

Salinas

Frontana‐Uribe

2019

ChemElectroChem

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The in situ electrochemical‐conductance method is presented as an important electrochemical characterization tool for gaining insight into the chemical and electrical behavior of π‐conjugated polymers and electroactive materials. Important information about conductivity models, the type of charge carrier, and the carrier‐transport pathways as well as explanations of different phenomena related to charge and mass transport can be extracted from the obtained analyses. Using conveniently modified polymers, this method enables the development of a wide range of conductometric sensory devices. This Minireview summarizes the historical development of the in situ electrochemical‐conductance method, describes the systems used, explains details of the calculations, and discusses recent advances and applications.

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Section: In Situ Electrochemical-conductance Measurements On Depositementioning

confidence: 99%

“…In recent years using this technique, different polymer films derived from polyfurans, PTh, PPy, PANI, polyalcoxythiophenes to organometallics polymers, dendrimer structures and conjugated radical polymers, have been examined . Conductance behavior, charge/discharge process, n ‐doping and charge trapping are the most common phenomena studied.…”

Section: Chemical Aspects Related To In Situ Electrochemical‐conductamentioning

confidence: 99%

Analysis of Conjugated Polymers Conductivity by in situ Electrochemical‐Conductance Method

Salinas

Frontana‐Uribe

2019

ChemElectroChem

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“…For the two-point method, the specimen is kept at a certain potential, and the conductivity is measured by applying a small AC or DC voltage between two probes [10][11][12]. The electrical resistance measured by this technique includes both the volume resistance of the composite and the contact resistance between the contacting materials and the composite.…”

Section: Cnt-based Inherent Sensing and Interfacial Properties Of Glassmentioning

confidence: 99%

CNT-Based Inherent Sensing and Interfacial Properties of Glass Fiber-Reinforced Polymer Composites

Wang

Kwon

et al. 2015

Handbook of Polymer Nanocomposites. Processing, Performance and Application

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“…Consequently, conductometric/impedometric transducing is the most common transducing technique used with CP. Several configurations have been used for such measurements (Figure 12 [17][18][19][20][21][22][23][24][25][26][27][28][29][30]. The measurement can be performed at DC mode by application of constant current or voltage.…”

Section: Transducers For Artificial Receptors Based On Conducting Polmentioning

confidence: 99%

Conducting Polymers as Artificial Receptors in Chemical Sensors

Lange

Roznyatovskaya

Hao

et al. 2010

Artificial Receptors for Chemical Sensors

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Conducting polymers are commonly used materials in chemical and biological sensors. These materials possess receptor as well as transducer functions [1]. Typical examples of conducting polymers (CPs) include polythiophenes, polypyrroles, polyanilines, and polyphenylenes. Such polymers show some intrinsic receptor properties towards analytes that can react/interact with the polymer, like, for example, redox active or acidic/basic gases. Oxidation/reduction and in some cases protonation/ deprotonation introduces/removes charge carriers in the conjugated backbone, whereas conformational changes alter the planarity of the conjugated backbone, which leads to changes in the mobility of the charge carriers. Figure 12.1 demonstrates the example of PANI (polyaniline), showing the influence of redox potential and pH on the interconversion between the different forms of PANI.These changes can be detected by in situ resistance, UV-vis, IR, or fluorescence measurements. Direct interactions with the p-system often produce very large signal changes; however, they are quite non-specific. A possible way to introduce some selectivity in these polymers is to modify their conjugated backbone with receptors.Usually, receptors can be introduced into a polymer backbone either after polymerization or directly to monomer, which is polymerized or copolymerized. The synthetic availability and the ability to polymerize the monomer under certain conditions are the most common limitations in the choice of a derivative with receptor group. Some classes of these receptors are discussed in Section 12.4. Doping of CPs by counter ions bearing the required receptor [2-8], the inclusion of ionophores into the polymer matrix [9], and the chemical linkage of ligands or receptor units to the polymer backbone [10] are also applied to enhance the selectivity and sensitivity of CPs. Receptors attached to the p-system via some short side chain can communicate with the p-system of the polymer by, for example, electron donating/withdrawing, electrostatic interactions or by inducing conformational changes upon analyte binding. As there is no direct interaction with the polymer backbone, the signal change may be smaller, but also much more specific. Artificial Receptors for Chemical Sensors. Edited

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In situ conductance and in situ ATR-FTIR study of poly(N-methylaniline) in aqueous solution

Cited by 18 publications

References 34 publications

Analysis of Conjugated Polymers Conductivity by in situ Electrochemical‐Conductance Method

Analysis of Conjugated Polymers Conductivity by in situ Electrochemical‐Conductance Method

CNT-Based Inherent Sensing and Interfacial Properties of Glass Fiber-Reinforced Polymer Composites

Conducting Polymers as Artificial Receptors in Chemical Sensors

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