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Related Concept Videos

Characteristics and Nomenclature of Copolymers01:24

Characteristics and Nomenclature of Copolymers

2.6K
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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Step-Growth Polymerization: Overview01:03

Step-Growth Polymerization: Overview

3.5K
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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Polymers02:34

Polymers

32.6K
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...
32.6K
Cationic Chain-Growth Polymerization: Mechanism00:57

Cationic Chain-Growth Polymerization: Mechanism

2.1K
The cationic polymerization mechanism consists of three steps: initiation, propagation, and termination. In the initiation step of the polymerization process, the π bond of a monomer gets protonated by the Lewis acid catalyst, which is formed from boron trifluoride and water. The protonation of the π bond generates a carbocation stabilized by the electron‐donating group. In the propagation step, the π bond of the second monomer acts as a nucleophile and attacks the...
2.1K
Radical Chain-Growth Polymerization: Mechanism01:09

Radical Chain-Growth Polymerization: Mechanism

2.9K
The radical chain-growth polymerization mechanism consists of three steps: initiation, propagation, and termination of polymerization. The polymerization initiates when a free radical generated from the radical initiator adds to the unsaturated bond in the monomer. The unpaired electron of the free radical and one π electron in the unsaturated bond creates a σ bond between the free radical and the monomer. As a result, the other π electron in the unsaturated bond converts this...
2.9K
Anionic Chain-Growth Polymerization: Mechanism01:04

Anionic Chain-Growth Polymerization: Mechanism

1.7K
The mechanism for anionic chain-growth polymerization involves initiation, propagation, and termination steps. In the initiation step, a nucleophilic anion, such as butyl lithium, initiates the polymerization process by attacking the π bond of the vinylic monomer. As a result, a carbanion, stabilized by the electron‐withdrawing group, is generated. The resulting carbanion acts as a Michael donor in the propagation step and attacks the second vinylic monomer, which acts as a Michael...
1.7K

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Related Experiment Video

Updated: Apr 26, 2026

Self-assembling Morphologies Obtained from Helical Polycarbodiimide Copolymers and Their Triazole Derivatives
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Self-assembling Morphologies Obtained from Helical Polycarbodiimide Copolymers and Their Triazole Derivatives

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Self-assembly of random copolymers.

Longyu Li1, Kishore Raghupathi, Cunfeng Song

  • 1Department of Chemistry, University of Massachusetts, Amherst, MA 01003, USA. thai@chem.umass.edu.

Chemical Communications (Cambridge, England)
|July 19, 2014
PubMed
Summary

Random copolymers are versatile for creating diverse nanostructures and stimuli-responsive nanomaterials. Their use in synthesizing single-chain nanoparticles offers significant potential for translational polymer research.

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Self-assembling Morphologies Obtained from Helical Polycarbodiimide Copolymers and Their Triazole Derivatives
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Area of Science:

  • Polymer Chemistry
  • Materials Science
  • Nanotechnology

Background:

  • Self-assembly of random copolymers is a rapidly growing field.
  • These polymers offer unique properties for nanomaterial fabrication.

Purpose of the Study:

  • To highlight the utility of random copolymers in creating nanostructures.
  • To discuss their role in developing stimuli-responsive nanomaterials.
  • To explore the synthesis and applications of single-chain nanoparticles from random copolymers.

Main Methods:

  • Review of recent literature on random copolymer self-assembly.
  • Discussion of synthetic strategies for random copolymers.
  • Analysis of methods for creating nanostructures and single-chain nanoparticles.

Main Results:

  • Random copolymers enable the formation of diverse nanostructure morphologies.
  • They can be engineered into nanomaterials responsive to various stimuli.
  • Single-chain nanoparticles can be synthesized from random copolymers with promising applications.

Conclusions:

  • Random copolymers are easily accessible and highly versatile for advanced nanomaterial design.
  • They are poised to make significant contributions to translational polymer research.