Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Radical Substitution: Hydrogenolysis of Alkyl Halides with Tributyltin Hydride01:26

Radical Substitution: Hydrogenolysis of Alkyl Halides with Tributyltin Hydride

1.7K
Radical substitution reactions can be used to remove functional groups from molecules. The hydrogenolysis of alkyl halides is one such reaction, where the weak Sn–H bond in tributyltin hydride reacts with alkyl halides to form alkanes. Here, the reagent Bu3SnH yields tributyltin halide as a byproduct.
The bonds formed in this reaction are stronger than the bonds broken, making it energetically favorable. The reaction follows a radical chain mechanism similar to radical halogenation...
1.7K
Free-Radical Chain Reaction and Polymerization of Alkenes02:35

Free-Radical Chain Reaction and Polymerization of Alkenes

7.5K
The conversion of alkenes to macromolecules called polymers is a reaction of high commercial importance. The structure of the polymer is defined by a repeating unit, while the terminal groups are considered insignificant. The average degree of polymerization represents the number of repeating units in the polymer molecule and is denoted by the subscript n.
7.5K
Radical Chain-Growth Polymerization: Overview01:10

Radical Chain-Growth Polymerization: Overview

2.2K
Chain-growth or addition polymerization is successive addition reactions of monomers with a polymer chain. In radical chain-growth polymerization, the reaction proceeds via a free-radical intermediate. The free radical is formed from radical initiators, which spontaneously generate free radicals by homolytic fission. Organic peroxides (such as dibenzoyl peroxide, as shown in Figure 1) or azo compounds are popular radical initiators. A low concentration ratio of radical initiator to monomer is...
2.2K
Olefin Metathesis Polymerization: Acyclic Diene Metathesis (ADMET)00:53

Olefin Metathesis Polymerization: Acyclic Diene Metathesis (ADMET)

1.9K
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...
1.9K
Thermal and Photochemical Electrocyclic Reactions: Overview01:26

Thermal and Photochemical Electrocyclic Reactions: Overview

2.2K
Electrocyclic reactions are reversible reactions. They involve an intramolecular cyclization or ring-opening of a conjugated polyene. Shown below are two examples of electrocyclic reactions. In the first reaction, the formation of the cyclic product is favored. In contrast, in the second reaction, ring-opening is favored due to the high ring strain associated with cyclobutene formation.
2.2K
Olefin Metathesis Polymerization: Overview01:13

Olefin Metathesis Polymerization: Overview

2.0K
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...
2.0K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Industrial-scale nanocrystalline Ni-Mo-MgO catalysts for hybrid reforming of waste to fuels.

Science (New York, N.Y.)·2026
Same author

Deciphering competing elementary steps to correlate electrocatalyst chemical state with activity.

Science advances·2026
Same author

Rheological Pathways to a Scalable Ruthenium Nuclei-Anchored Carbon Fiber Catalyst.

ACS nano·2026
Same author

Hypoglossal Nerve Transection Induces Anxiety- and Depression-like Behaviors with HPA Axis Dysregulation in Rats.

Bioengineering (Basel, Switzerland)·2026
Same author

An AI-driven, wearable, conformal ring system for real-time and user-independent sign language interpretation.

Science advances·2026
Same author

Reversible sorafenib-associated coagulopathy identified by viscoelastic testing in a dog with intranasal sarcoma.

Journal of veterinary internal medicine·2026

Related Experiment Video

Updated: May 8, 2025

Atom Transfer Radical Polymerization of Functionalized Vinyl Monomers Using Perylene as a Visible Light Photocatalyst
06:49

Atom Transfer Radical Polymerization of Functionalized Vinyl Monomers Using Perylene as a Visible Light Photocatalyst

Published on: April 22, 2016

11.6K

Hierarchically Porous Poly(aryl thioether)s Through Dynamic Linker Engineering for Thiyl Radical Photocatalysis.

Sunil Kumar1, Doyun Kim2, Youngdong Song2

  • 1Water Cycle Research Center, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea.

Small (Weinheim an Der Bergstrasse, Germany)
|March 3, 2025
PubMed
Summary

This study developed a novel porous polymer photocatalyst using disulfide linkages for enhanced adsorption and visible-light-driven catalysis. The material shows high efficiency in diphenylacetylene oxidation, offering a new strategy for advanced materials.

Keywords:
disulfide linkageshierarchical porous structurephotocatalyzed organic transformationsporous organic polymer photocatalystthiyl radicals

More Related Videos

Synthesis of a Thiol Building Block for the Crystallization of a Semiconducting Gyroidal Metal-sulfur Framework
12:30

Synthesis of a Thiol Building Block for the Crystallization of a Semiconducting Gyroidal Metal-sulfur Framework

Published on: April 9, 2018

8.9K
Constructing Thioether/Vinyl Sulfide-tethered Helical Peptides Via Photo-induced Thiol-ene/yne Hydrothiolation
11:09

Constructing Thioether/Vinyl Sulfide-tethered Helical Peptides Via Photo-induced Thiol-ene/yne Hydrothiolation

Published on: August 1, 2018

10.6K

Related Experiment Videos

Last Updated: May 8, 2025

Atom Transfer Radical Polymerization of Functionalized Vinyl Monomers Using Perylene as a Visible Light Photocatalyst
06:49

Atom Transfer Radical Polymerization of Functionalized Vinyl Monomers Using Perylene as a Visible Light Photocatalyst

Published on: April 22, 2016

11.6K
Synthesis of a Thiol Building Block for the Crystallization of a Semiconducting Gyroidal Metal-sulfur Framework
12:30

Synthesis of a Thiol Building Block for the Crystallization of a Semiconducting Gyroidal Metal-sulfur Framework

Published on: April 9, 2018

8.9K
Constructing Thioether/Vinyl Sulfide-tethered Helical Peptides Via Photo-induced Thiol-ene/yne Hydrothiolation
11:09

Constructing Thioether/Vinyl Sulfide-tethered Helical Peptides Via Photo-induced Thiol-ene/yne Hydrothiolation

Published on: August 1, 2018

10.6K

Area of Science:

  • Materials Science
  • Polymer Chemistry
  • Photocatalysis

Background:

  • Hierarchically porous polymers provide high surface areas crucial for catalysis.
  • Integrating photocatalytic sites within these porous structures is a significant challenge.
  • Disulfide bonds in nature stabilize proteins and facilitate redox activity.

Purpose of the Study:

  • To develop a hierarchically porous poly(aryl thioether) photocatalyst.
  • To incorporate photocatalytic sites via disulfide and thioether linkages.
  • To evaluate the material's adsorption and photocatalytic properties.

Main Methods:

  • Polycondensation to form dual disulfide and thioether linkages.
  • Partial oxidation of thiolate intermediates in air to create micro/mesoporosity.
  • Characterization of surface area and porosity.
  • Testing adsorption capacity for volatile organic compounds and mercury ions.
  • Evaluating photocatalytic oxidation of diphenylacetylene under visible light.

Main Results:

  • A micro/mesoporous polymer with a surface area of 757 m² g⁻¹ was synthesized.
  • The polymer demonstrated enhanced adsorption capabilities.
  • Disulfide-functionalized pore walls generated thiyl radicals under visible light.
  • Achieved >99% conversion efficiency and 3.5% apparent quantum yield for diphenylacetylene oxidation.

Conclusions:

  • A novel linker engineering strategy was employed to create a multifunctional porous polymer.
  • The developed photocatalyst integrates hierarchical porosity and photoactive radical generation.
  • This heterogeneous photocatalyst shows superior performance compared to homogeneous systems.