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Related Concept Videos

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

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

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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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.
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Polymers02:34

Polymers

The word polymer is derived from the Greek words “poly” which means “many” and “mer” which means “parts”. Polymers are long chains of molecules composed of repeating units of smaller molecules, known as monomers. They either occur naturally, such as DNA and proteins, or can be constructed synthetically, like plastics. They have varied structural characteristics, such as linear chains, branched chains, or complex networks, that contribute to the properties that they exhibit. Additionally,...
Polymers02:34

Polymers

The word polymer is derived from the Greek words “poly” which means “many” and “mer” which means “parts”. Polymers are long chains of molecules composed of repeating units of smaller molecules, known as monomers. They either occur naturally, such as DNA and proteins, or can be constructed synthetically, like plastics. They have varied structural characteristics, such as linear chains, branched chains, or complex networks, that contribute to the properties that they exhibit. Additionally,...
Polymers02:34

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The word polymer is derived from the Greek words “poly” which means “many” and “mer” which means “parts”. Polymers are long chains of molecules composed of repeating units of smaller molecules, known as monomers. They either occur naturally, such as DNA and proteins, or can be constructed synthetically, like plastics. They have varied structural characteristics, such as linear chains, branched chains, or complex networks, that contribute to the properties that they exhibit. Additionally,...

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Synthesis and Characterization of Self-Assembled Metal-Organic Framework Monolayers Using Polymer-Coated Particles
06:48

Synthesis and Characterization of Self-Assembled Metal-Organic Framework Monolayers Using Polymer-Coated Particles

Published on: June 14, 2024

Polyrotaxane metal-organic frameworks (PMOFs).

Jin Yang1, Jian-Fang Ma, Stuart R Batten

  • 1Key Lab of Polyoxometalate Science, Department of Chemistry, Northeast Normal University, Changchun 130024, People's Republic of China.

Chemical Communications (Cambridge, England)
|June 30, 2012
PubMed
Summary
This summary is machine-generated.

Polyrotaxane metal-organic frameworks (PMOFs) are rare entangled networks with unique structures. This review details their classifications, nomenclature, and synthesis strategies for future development.

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Area of Science:

  • Materials Science
  • Supramolecular Chemistry
  • Crystallography

Background:

  • Polyrotaxane metal-organic frameworks (PMOFs) represent a rare class of entangled network materials.
  • Their unusual entanglement topologies have garnered significant research interest.
  • PMOFs are currently in the early stages of development and exploration.

Purpose of the Study:

  • To summarize recent advancements in the structural types of PMOFs.
  • To establish clear definitions and nomenclature for PMOF entanglements.
  • To elucidate synthetic strategies for designing and preparing novel PMOFs.

Main Methods:

  • Literature review of PMOF structures from various research groups.
  • Development of a classification system for PMOF entanglements.
  • Analysis of synthetic approaches for PMOF construction.

Main Results:

  • Generalizations about various classes of PMOFs have been made.
  • Definitions and nomenclature for trivial and nontrivial polyrotaxanes are proposed.
  • Classification criteria for (nontrivial) polyrotaxanes are established.

Conclusions:

  • This article provides a foundational understanding of PMOF structural diversity and classification.
  • Standardized nomenclature is crucial for advancing PMOF research.
  • Elucidation of synthetic strategies will guide the creation of new PMOF materials.