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Related Concept Videos

The Colloidal State01:29

The Colloidal State

74
The formation of a colloidal system is exemplified by an aqueous solution containing Cl− ions is introduced to another containing Ag+ ions, resulting in the precipitation of solid AgCl as extremely tiny crystals. Instead of settling out as a filterable precipitate, these crystals remain suspended in the liquid, showcasing a colloidal system.A colloidal system involves colloidal particles within the approximate range of 1 to 1000 nm in at least one dimension, dispersed in a medium called...
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Colloids and Suspensions01:17

Colloids and Suspensions

3.8K
Children at play often make suspensions such as mixtures of mud and water, flour and water, or a suspension of solid pigments in water known as tempera paint. These suspensions are heterogeneous mixtures composed of relatively large particles visible to the naked eye or seen with a magnifying glass. They are cloudy, and the suspended particles settle out after mixing. The suspended particles in a suspension settle out after some time of mixing. The separation of particles from a suspension is...
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Colloids03:22

Colloids

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Children at play often make suspensions such as mixtures of mud and water, flour and water, or a suspension of solid pigments in water known as tempera paint. These suspensions are heterogeneous mixtures composed of relatively large particles that are visible to the naked eye or can be seen with a magnifying glass. They are cloudy, and the suspended particles settle out after mixing. On the other hand, a solution is a homogeneous mixture in which no settling occurs and in which the dissolved...
21.8K
Polymers: Molecular Weight Distribution01:10

Polymers: Molecular Weight Distribution

5.0K
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.
5.0K
Molecular Weight of Step-Growth Polymers01:08

Molecular Weight of Step-Growth Polymers

3.0K
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...
3.0K
Step-Growth Polymerization: Overview01:03

Step-Growth Polymerization: Overview

4.6K
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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Related Experiment Video

Updated: Mar 13, 2026

Controlled Synthesis and Fluorescence Tracking of Highly Uniform PolyN-isopropylacrylamide Microgels
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Controlled Synthesis and Fluorescence Tracking of Highly Uniform PolyN-isopropylacrylamide Microgels

Published on: September 8, 2016

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Statics and dynamics of polymer-wrapped colloids.

N Bagatella-Flores1, H Schiessel, W M Gelbart

  • 1Facultad de Física e Inteligencia Artificial, Universidad Veracruzana, Xalapa, Veracruz, Mexico.

The Journal of Physical Chemistry. B
|July 21, 2006
PubMed
Summary

This study investigates colloidal particle and semiflexible polymer chain complexes. Energetic factors primarily govern the complex

Area of Science:

  • Soft matter physics
  • Polymer physics
  • Colloid science

Background:

  • Semiflexible polymer chains can adsorb onto colloidal particles.
  • The resulting complex exhibits unique statistical and dynamical properties.

Purpose of the Study:

  • To investigate the statistical and dynamical properties of a colloidal particle-semiflexible polymer chain complex.
  • To determine the influence of absorption energy, chain persistence length, and other parameters on the complex's behavior.

Main Methods:

  • Molecular dynamics simulations were employed.
  • Analysis focused on wrapped chain length, sphere position distributions, and loop defect characteristics.

Main Results:

  • Wrapped chain length depends on absorption energy and persistence length.

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Synthesis and Characterization of Supramolecular Colloids
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Confocal Imaging of Confined Quiescent and Flowing Colloid-polymer Mixtures

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Related Experiment Videos

Last Updated: Mar 13, 2026

Controlled Synthesis and Fluorescence Tracking of Highly Uniform PolyN-isopropylacrylamide Microgels
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Controlled Synthesis and Fluorescence Tracking of Highly Uniform PolyN-isopropylacrylamide Microgels

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Synthesis and Characterization of Supramolecular Colloids
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  • Thermal loop defects were characterized.
  • Colloidal repositioning dynamics and diffusion coefficients were determined.

    • Conclusions:

    • The static and dynamic properties of these complexes are predominantly governed by energetic considerations.
    • Entropic contributions from polymer chain configurations play a secondary role.