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Related Concept Videos

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

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,...
Characteristics and Nomenclature of Copolymers01:24

Characteristics and Nomenclature of Copolymers

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...
Molecular Weight of Step-Growth Polymers01:08

Molecular Weight of Step-Growth Polymers

Step growth polymerization involves bi or multifunctional monomers. Bifunctional monomers react to form linear step growth polymers, whereas multifunctional monomers react to form non-linear or branched polymers.
As the step-growth polymerization involves step-wise condensation of monomers, the molecular weight also builds up eventually. Consequently, high molecular weight polymers are obtained at the late stages of the polymerization, where 99% of monomers have been consumed.
The extent of the...
Step-Growth Polymerization: Overview01:03

Step-Growth Polymerization: Overview

Step-growth or condensation polymerization is a stepwise reaction of bi or multifunctional monomers to form long-chain polymers. As all the monomers are reactive, most of the monomers are consumed at the early stages of the reaction to form small chains of reactive oligomers, which then combine to form long polymer chains in the late stages. Hence, the reaction has to proceed for a long time to achieve high molecular weight polymers.
Many natural and synthetic polymers are produced by...

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Combinatorial Synthesis of and High-throughput Protein Release from Polymer Film and Nanoparticle Libraries
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Published on: September 6, 2012

Dynamic combinatorial libraries constructed on polymer scaffolds.

David A Fulton1

  • 1School of Chemistry, Newcastle University, Newcastle Upon Tyne NE1 7RU, UK. d.a.fulton@ncl.ac.uk

Organic Letters
|July 1, 2008
PubMed
Summary
This summary is machine-generated.

Researchers created dynamic functional polymers by attaching acylhydrazides to a polyvinylbenzaldehyde scaffold. These polymers can reshuffle their components, forming a dynamic combinatorial library on a polymer base.

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Area of Science:

  • Polymer Chemistry
  • Materials Science
  • Supramolecular Chemistry

Background:

  • Polymers with dynamic functionalities are crucial for advanced materials.
  • Reversible linkages offer unique properties for polymer modification.
  • Dynamic combinatorial chemistry (DCC) principles can be applied to polymer systems.

Purpose of the Study:

  • To synthesize functionalized polymers using reversible hydrazone linkages.
  • To demonstrate the dynamic nature and reshuffling capabilities of these polymers.
  • To establish a polymer-based dynamic combinatorial library (DCL).

Main Methods:

  • Grafting acylhydrazides onto a polyvinylbenzaldehyde scaffold.
  • Utilizing reversible hydrazone bond formation for polymer functionalization.
  • Characterizing the dynamic exchange and reshuffling of polymer appendages.

Main Results:

  • Successfully prepared functionalized polymers with acylhydrazides.
  • Demonstrated the dynamic exchange of acylhydrazide components via reversible hydrazone linkages.
  • Confirmed the formation of a polymer-based dynamic combinatorial library.

Conclusions:

  • Reversible hydrazone linkages enable dynamic functionalization of polymers.
  • The developed system serves as a polymer scaffold for dynamic combinatorial libraries.
  • This approach offers a new route for creating adaptable and responsive polymer materials.