Plasticizers and Their Role in Membrane Selective Electrodes - IntechOpen
Plasticizers and Their Role in Membrane Selective Electrodes 115 connected to a reference electrode. Then, both electrodes are immersed in the solution to be tested. The concentration of the tested solu tion can be estimated from the galvanometer reading by the aid of the previously constructed calibration graph (for standard analtye
Plasticizers and Their Role in Membrane Selective Electrodes
The role of plasticizers is to impart the plastic membrane with the desired mechanical properties without crystallization and oxidation. However, it can also affect the selectivity and the...
Plasticizers and Their Role in Membrane Selective Electrodes
Plasticizers and Their Role in Membrane Selective Electrodes Written By Mohsen M. Zareh Submitted: May 25th, 2011 Published: March 21st, 2012 DOI: 10.5772/36620 IntechOpen Recent Advances in Plasticizers Edited by Mohammad Luqman From the Edited Volume Recent Advances in Plasticizers Edited by Mohammad Luqman Book Details Order Print
Plasticizers and Their Role in Membrane Selective Electrodes - ResearchGate
PVC-membranes for the selective electrodes are actually plastics. Different types of plasticizers are usually applied for preparing the membrane electrodes. Many types of plasticizers...
Ion-Selective Electrodes - Chemistry LibreTexts
Polymer membrane electrodes: An alternative to wet liquid membrane electrodes is to use a polymeric membrane, which is composed of a polymer such as polyvinylchloride (PVC), a plasticizer, and the ion carrier or exchanger. The response of these electrodes is highly selective and they have replaced many liquid membrane electrodes.
- What type of plasticizer is used for ion selective membrane electrodes?
- ght be ethers, esters of either aromatic or aliphatic acids. The ester plasticizer can be classif into dicarboxylic/tricarboxylic ester-based plasticizers. Several plasticizers are recorded for preparing ion selective membrane electrodes (Zareh, Sensor Letters, 2010). S me common phthalate plasticize
- What is a plasticized PVC membrane?
- Typically, plasticized PVC membranes consist of a mixture of PVC and a plasticizer (1:2 %w), with 1–3 % of an ionophore conferring selectivity . The nature of plasticizers plays a crucial role in the performance of solid-state sensors, influencing their flexibility, structural integrity, and ion-binding capabilities.
- How do plasticizers interact with additives in a PVC membrane?
- Additionally, the interaction between plasticizers and additives in the PVC membrane is largely governed by the plasticizer's lipophilicity. Ideally, the plasticizer should have a lipophilicity like that of the additive to maximize its dissolution and enhance the number of available ion-binding sites [23, 29].
- What are ion-selective membrane electrodes?
- rs are one of the major components of the plastic membranes. As it is usua known, they are responsible of their physical properties. In the beginning, a general idea about ion-selective membrane electrodes (Janata Principles of Chemical Sensors 1989) will be useful to understand the role of plasti
- How does plasticizer affect membrane stability?
- As observed in Fig. 7, as the amount of plasticizer increases, the changes in G′ decrease across all configurations (e.g., a smaller slope of the line over the entire frequency range), demonstrating good membrane stability and optimal interaction with the plasticizer in these compositions.
- Should PVC membranes be linear or branched?
- Choosing between linear and branched plasticizers significantly impacts PVC membranes in solid-state electrodes. Linear plasticizers enhance membrane flexibility but may lead to crystallization, reducing performance and longevity.
