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Anionic Chain-Growth Polymerization: Overview01:20

Anionic Chain-Growth Polymerization: Overview

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The polymerization process that involves carbanion as an intermediate is called anionic polymerization. It is also a type of addition or chain-growth polymerization. Anionic polymerization gets initiated by a strong nucleophile such as an organolithium or a Grignard reagent. The most commonly used initiator for anionic polymerization is butyl lithium. Monomers involved in anionic polymerization must possess a vinyl group bonded to one or two electron-withdrawing groups. For instance,...
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Ion Exchange01:17

Ion Exchange

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Ion exchange chromatography separates charged molecules from a solution by reversibly exchanging them with mobile, or 'active', ions associated with the oppositely charged stationary phase. This method can be used to separate ions, soften and deionize water, and purify solutions. The polymers comprising the ion-exchange column are high-molecular-weight and chemically stable polymers, crosslinked to be porous and essentially insoluble. They are also functionalized with either acidic or...
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Anionic Chain-Growth Polymerization: Mechanism01:04

Anionic Chain-Growth Polymerization: Mechanism

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The mechanism for anionic chain-growth polymerization involves initiation, propagation, and termination steps. In the initiation step, a nucleophilic anion, such as butyl lithium, initiates the polymerization process by attacking the π bond of the vinylic monomer. As a result, a carbanion, stabilized by the electron‐withdrawing group, is generated. The resulting carbanion acts as a Michael donor in the propagation step and attacks the second vinylic monomer, which acts as a Michael...
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Electrolyte and Nonelectrolyte Solutions02:21

Electrolyte and Nonelectrolyte Solutions

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Substances that undergo either a physical or a chemical change in solution to yield ions that can conduct electricity are called electrolytes. If a substance yields ions in solution, that is, if the compound undergoes 100% dissociation, then the substance is a strong electrolyte. Complete dissociation is indicated by a single forward arrow. For example, water-soluble ionic compounds like sodium chloride dissociate into sodium cations and chloride anions in aqueous solution.
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Ion-Exchange Chromatography01:09

Ion-Exchange Chromatography

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Ion-exchange chromatography, or IEC, is a technique for separating ions based on their affinity for the stationary phase. The stationary phase is a cross-linked polymer resin with covalently attached ionic functional groups. The functional groups can be either positively charged (cation exchangers) or negatively charged (anion exchangers). A cation exchanger consists of a polymeric anion and active cations, while an anion exchanger is a polymeric cation with active anions. The choice of...
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Cationic Chain-Growth Polymerization: Mechanism00:57

Cationic Chain-Growth Polymerization: Mechanism

2.5K
The cationic polymerization mechanism consists of three steps: initiation, propagation, and termination. In the initiation step of the polymerization process, the π bond of a monomer gets protonated by the Lewis acid catalyst, which is formed from boron trifluoride and water. The protonation of the π bond generates a carbocation stabilized by the electron‐donating group. In the propagation step, the π bond of the second monomer acts as a nucleophile and attacks the...
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Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications
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Correction: Electrochemistry meets polymer physics: polymerized ionic liquids on an electrified electrode.

Yury A Budkov1,2, Nikolai N Kalikin1,2, Andrei L Kolesnikov3

  • 1School of Applied Mathematics, HSE University, Tallinskaya st. 34, 123458 Moscow, Russia. ybudkov@hse.ru.

Physical Chemistry Chemical Physics : PCCP
|January 12, 2022
PubMed
Summary

This correction clarifies details regarding polymerized ionic liquids at electrified electrodes, emphasizing the intersection of electrochemistry and polymer physics. The updated information ensures accuracy for researchers in materials science and energy storage.

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Area of Science:

  • Polymer Science
  • Electrochemistry
  • Materials Science

Context:

  • Investigates polymerized ionic liquids (PILs) at electrified electrode interfaces.
  • Addresses the interplay between polymer physics and electrochemical phenomena.
  • Builds upon previous research in the field of functional polymers for electrochemical applications.

Purpose:

  • To provide a correction and ensure the accuracy of the original publication.
  • To refine the understanding of PIL behavior in electrochemical systems.
  • To maintain scientific integrity and facilitate further research.

Summary:

  • Corrects specific details within the original study on polymerized ionic liquids.
  • Clarifies the behavior and properties of PILs when subjected to an electric field at an electrode.
  • Ensures precise representation of the experimental and theoretical findings.

Impact:

  • Enhances the reliability of data for researchers in electrochemistry and polymer science.
  • Facilitates accurate advancements in the development of advanced materials for energy storage and sensors.
  • Supports the precise application of polymer physics principles to electrochemical systems.