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Related Concept Videos

Molecular Weight of Step-Growth Polymers01:08

Molecular Weight of Step-Growth Polymers

2.7K
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...
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Polymers: Molecular Weight Distribution01:10

Polymers: Molecular Weight Distribution

4.5K
For any given polymer, the weight average molecular weight (Mw) is higher than, if not equal to, the number average molecular weight (Mn). The only situation in which the weight average molecular weight and the number average molecular weight are equal is when a polymer consists only of chains with equal molecular weight. However, this never happens in a synthetic polymer, since it is difficult to control the polymerization process up to a molecular level with accuracy to a hundred percent.
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Step-Growth Polymerization: Overview01:03

Step-Growth Polymerization: Overview

4.2K
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

40.1K
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...
40.1K
Ziegler–Natta Chain-Growth Polymerization: Overview01:17

Ziegler–Natta Chain-Growth Polymerization: Overview

3.8K
Ziegler–Natta polymerization is another form of addition or chain‐growth polymerization used for synthesizing linear polymers over branched polymers. The catalyst used for polymerization is the Ziegler–Natta catalyst, named after Karl Ziegler and Giulio Natta, who developed it in 1953. This catalyst is an organometallic complex of titanium tetrachloride and triethyl aluminum, with the active form of the catalyst being an alkyl titanium compound. Using the Ziegler–Natta...
3.8K
Polymer Classification: Crystallinity01:21

Polymer Classification: Crystallinity

3.7K
Unlike ionic or small covalent molecules, polymers do not form crystalline solids due to the diffusion limitations of their long-chain structures. However, polymers contain microscopic crystalline domains separated by amorphous domains.
Crystalline domains are the regions where polymer chains are aligned in an orderly manner and held together in proximity by intermolecular forces. For example, chains in the crystalline domains of polyethylene and nylon are bound together by van der Waals...
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Related Experiment Video

Updated: Dec 24, 2025

Controlling the Size, Shape and Stability of Supramolecular Polymers in Water
16:24

Controlling the Size, Shape and Stability of Supramolecular Polymers in Water

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Deep Eutectic Supramolecular Polymers: Bulk Supramolecular Materials.

Shuanggen Wu1, Changyong Cai2, Fenfang Li2

  • 1College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, Hunan, P. R. China.

Angewandte Chemie (International Ed. in English)
|April 16, 2020
PubMed
Summary
This summary is machine-generated.

Researchers developed solvent-free supramolecular polymers using deep eutectic solvents. These novel materials exhibit unique properties like supramolecular adhesion and temperature-dependent behavior, showing potential as adaptive materials.

Keywords:
deep eutectic solventsmaterials sciencepolymersself-assemblysupramolecular chemistry

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Self-assembling Morphologies Obtained from Helical Polycarbodiimide Copolymers and Their Triazole Derivatives
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Preparation of Binary and Ternary Deep Eutectic Systems
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Preparation of Binary and Ternary Deep Eutectic Systems

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Last Updated: Dec 24, 2025

Controlling the Size, Shape and Stability of Supramolecular Polymers in Water
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Controlling the Size, Shape and Stability of Supramolecular Polymers in Water

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Self-assembling Morphologies Obtained from Helical Polycarbodiimide Copolymers and Their Triazole Derivatives
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Preparation of Binary and Ternary Deep Eutectic Systems
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Preparation of Binary and Ternary Deep Eutectic Systems

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Area of Science:

  • Supramolecular chemistry
  • Polymer science
  • Materials science

Background:

  • Supramolecular polymers offer tunable properties through self-assembly.
  • Developing solvent-free strategies is crucial for sustainable materials.
  • Deep eutectic solvents (DES) present unique characteristics for material design.

Purpose of the Study:

  • To establish a facial strategy for bulk, solvent-free supramolecular polymer development.
  • To investigate the properties of supramolecular polymers prepared using DES.
  • To explore the potential of these materials as adaptive systems.

Main Methods:

  • Preparation of deep eutectic supramolecular polymers (DESPs) using cyclodextrins and natural acids.
  • Characterization of DESPs' macroscopic properties and processability.
  • Analysis of supramolecular adhesion and temperature-dependent behavior.

Main Results:

  • Successful synthesis of solvent-free DESPs with excellent processability.
  • DESPs demonstrated unique macroscopic properties derived from DES and supramolecular polymerization.
  • Observed supramolecular adhesion and distinct temperature-dependent behavior in DESPs.

Conclusions:

  • Deep eutectic solvents are effective in creating solvent-free supramolecular polymers.
  • DESPs exhibit promising adaptive material characteristics due to their unique properties.
  • This approach offers a new avenue for designing advanced functional materials.