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Related Concept Videos

Olefin Metathesis Polymerization: Overview01:13

Olefin Metathesis Polymerization: Overview

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Recently, the development of olefin metathesis polymerization advanced the field of polymer synthesis. Simply put, the reorganization of substituents on their double bonds between two olefins in the presence of a catalyst is known as the olefin metathesis reaction. The use of metathesis reaction for polymer synthesis is called olefin metathesis polymerization.
Ruthenium-based Grubbs catalyst is the most commonly used catalyst for olefin metathesis polymerization. Grubbs catalyst consists...
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Olefin Metathesis Polymerization: Acyclic Diene Metathesis (ADMET)00:53

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Acyclic diene metathesis polymerization or ADMET polymerization involves cross-metathesis of terminal dienes, such as 1,8-nonadiene, to give linear unsaturated polymer and ethylene. As ADMET is a reversible process, the formed ethylene gas must be removed from the reaction mixture to complete the polymerization process.
Similar to cross-metathesis, ADMET also involves the formation of metallacyclobutane intermediate by [2+2] cycloaddition of one of the double bonds of a terminal diene with...
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Cationic Chain-Growth Polymerization: Mechanism00:57

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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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Related Experiment Video

Updated: Sep 21, 2025

Preparation of Hollow Polystyrene Particles and Microcapsules by Radical Polymerization of Janus Droplets Consisting of Hydrocarbon and Fluorocarbon Oils
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Supramolecular Emulsion Interfacial Polymerization.

Shuai Zhang1, Bo Qin1, Zehuan Huang1

  • 1Key Lab of Organic Optoelectronics & Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing 100084, China.

ACS Macro Letters
|May 27, 2022
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Summary
This summary is machine-generated.

Researchers developed a novel supramolecular emulsion interfacial polymerization method to create hollow nanospheres. This technique utilizes unique monomers for controlled fabrication and stimuli-responsive release of encapsulated materials.

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Area of Science:

  • Polymer Chemistry
  • Materials Science
  • Supramolecular Chemistry

Background:

  • Supramolecular polymerization offers advanced material design.
  • Developing efficient methods for fabricating nanostructures is crucial.
  • Emulsion interfacial polymerization provides a versatile platform for material synthesis.

Purpose of the Study:

  • To develop a new supramolecular emulsion interfacial polymerization method.
  • To fabricate stable and dynamic supramolecular polymeric nanospheres.
  • To achieve controlled release of encapsulated guest molecules.

Main Methods:

  • Designing a water-soluble monomer with maleimide end groups.
  • Designing an oil-soluble supramonomer with thiol groups linked by quadruple hydrogen bonds.
  • Utilizing ultrasonication to initiate thiol-maleimide reaction at the emulsion interface.

Main Results:

  • Successfully fabricated hollow supramolecular polymeric nanospheres.
  • The nanospheres exhibit good stability and dynamic properties.
  • Demonstrated stimuli-responsive release of encapsulated guest molecules.

Conclusions:

  • The developed method enriches supramolecular polymerization techniques.
  • This approach enables the construction of supramolecular materials with tunable structures and functions.
  • The method holds promise for advanced applications in materials science.