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Related Concept Videos

Olefin Metathesis Polymerization: Acyclic Diene Metathesis (ADMET)00:53

Olefin Metathesis Polymerization: Acyclic Diene Metathesis (ADMET)

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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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Olefin Metathesis Polymerization: Ring-Opening Metathesis Polymerization (ROMP)01:16

Olefin Metathesis Polymerization: Ring-Opening Metathesis Polymerization (ROMP)

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Ring-opening metathesis polymerization or ROMP involves strained cycloalkenes as starting materials. The mechanism of ROMP proceeds by reacting cycloalkene with Grubbs catalyst to give metallacyclobutane intermediate which undergoes a ring-opening reaction to form new carbene. The new carbene reacts with another molecule of cycloalkene. Repetition of these steps leads to the formation of an unsaturated open-chain polymer product. All these steps are reversible, however, relieving the ring...
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Olefin Metathesis Polymerization: Overview01:13

Olefin Metathesis Polymerization: Overview

2.6K
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 of a...
2.6K
Characteristics and Nomenclature of Copolymers01:24

Characteristics and Nomenclature of Copolymers

3.3K
Copolymers are the products obtained from the polymerization of multiple monomer species. So, in a polymer chain itself, there can be multiple repeating units that come from different monomers. The process of synthesizing a polymer from different monomer species is called copolymerization. When two monomers are involved, the polymer is known as a bipolymer. Polymers with three and four monomers are termed terpolymers and quaterpolymers, respectively. Figure 1 depicts the copolymerization of...
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Dehydration Synthesis01:15

Dehydration Synthesis

149.5K
Overview
Dehydration synthesis (also called a condensation reaction) is the chemical process in which two molecules covalently link together to form a new molecule, along with the release of a water molecule. Many physiologically important compounds form by dehydration synthesis reactions, such as complex carbohydrates, proteins, DNA, and RNA.
Synthesis of carbohydrates
Sugar molecules are covalently linked together by dehydration synthesis. During the reaction, the hydroxyl (-OH) group from...
149.5K
Synthesis and Decomposition Reactions02:17

Synthesis and Decomposition Reactions

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Synthesis and decomposition are two types of redox reactions. Synthesis means to make something, whereas decomposition means to break something. The reactions are accompanied by chemical and energy changes. 
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Related Experiment Video

Updated: Jan 29, 2026

Heterogeneous Removal of Water-Soluble Ruthenium Olefin Metathesis Catalyst from Aqueous Media Via Host-Guest Interaction
10:39

Heterogeneous Removal of Water-Soluble Ruthenium Olefin Metathesis Catalyst from Aqueous Media Via Host-Guest Interaction

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Olefin metathesis in multiblock copolymer synthesis.

Maria L Gringolts1, Yulia I Denisova1, Eugene Sh Finkelshtein1

  • 1Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninsky prosp. 29, 119991 Moscow, Russia.

Beilstein Journal of Organic Chemistry
|February 13, 2019
PubMed
Summary

Multiblock copolymers offer advanced nanomaterials with tunable properties. This review covers olefin metathesis methods for synthesizing these polymers, focusing on macromolecular cross-metathesis for tailored structures and applications.

Keywords:
ADMETROMPmacromolecular cross metathesismultiblock copolymersolefin metathesis

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Depolymerizable Olefinic Polymers Based on Fused-Ring Cyclooctene Monomers
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Area of Science:

  • Polymer Chemistry
  • Materials Science
  • Nanotechnology

Background:

  • Multiblock copolymers are advanced nanomaterials.
  • They offer enhanced mechanical properties and durability.
  • Combining diverse functional properties is key.

Purpose of the Study:

  • To review synthetic approaches for multiblock copolymers.
  • Focus on olefin metathesis and chemical modification across double C=C bonds.
  • Highlight structure-property relationships and applications.

Main Methods:

  • Coupling of end-functionalized blocks.
  • Sequential ring-opening metathesis polymerization.
  • Cross metathesis between unsaturated polymers (macromolecular cross metathesis).

Main Results:

  • Macromolecular cross metathesis offers a simple route to tailored multiblock copolymers.
  • Various synthetic strategies enable precise control over copolymer architecture.
  • Structure-property correlations are analyzed for potential applications.

Conclusions:

  • Olefin metathesis is a powerful tool for designing advanced multiblock copolymers.
  • Macromolecular cross metathesis provides significant opportunities for material design.
  • These copolymers show promise for diverse practical applications.