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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.
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Polymers

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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,...

Polymers

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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,...

Polymers

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Continuous Flow Chemistry: Reaction of Diphenyldiazomethane with p-Nitrobenzoic Acid

Continuous Flow Chemistry: Reaction of Diphenyldiazomethane with p-Nitrobenzoic Acid

Published on: November 15, 2017

Continuous flow synthesis of conjugated polymers.

Helga Seyler¹, David J Jones, Andrew B Holmes

¹School of Chemistry, Bio21 Institute, University of Melbourne, 30 Flemington Road, Parkville, Victoria 3010, Australia.

Chemical Communications (Cambridge, England)

|September 13, 2011

Summary

Continuous flow synthesis of conjugated polymers offers superior control and efficiency. This method significantly reduces reaction times while achieving excellent polymer molecular mass distributions for organic electronics applications.

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Area of Science:

Organic electronics
Polymer chemistry
Materials science

Background:

Conjugated polymers are crucial for organic electronic devices.
Traditional batch synthesis methods present challenges in control and efficiency.
Optimizing synthesis is key to advancing organic electronics.

Purpose of the Study:

To synthesize conjugated polymers using continuous flow methodology.
To evaluate the efficiency and product quality compared to batch methods.
To explore the potential of flow chemistry in organic electronics.

Main Methods:

Utilized continuous flow reactors for polymer synthesis.
Employed precise control over reaction parameters like temperature and reagent addition.
Analyzed polymer properties, including molecular mass distribution.

Main Results:

Achieved excellent polymer molecular mass distributions.
Significantly reduced reaction times compared to batch synthesis.
Demonstrated superior heat transfer and reagent control in flow systems.

Conclusions:

Continuous flow methodology is a highly effective approach for synthesizing conjugated polymers.
Flow chemistry offers advantages in terms of speed and product quality for organic electronics.
This method paves the way for more efficient production of advanced polymer materials.