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Related Concept Videos

Polymer Classification: Architecture01:14

Polymer Classification: Architecture

Polymers are classified as linear or branched on the basis of their chain architecture. The polymer chains in linear polymers have a long chain-like structure with minimal to no branching at all. Even if a polymer features large substituent groups on the monomer, which appear as branches to the skeleton, it is not considered a branched polymer. A branched polymer contains secondary polymer chains that arise from the main polymer chain. The branching occurs when the polymer growth shifts from...
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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...
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,...
Classification and Mechanical Properties of Synthetic Polymers01:28

Classification and Mechanical Properties of Synthetic Polymers

Synthetic polymers are classified as elastomers, fibers, or plastics based on their crystallinity. Crystallinity, the degree of long-range order in the solid state, influences the mechanical properties (stretching or contracting) of elastomers. Elastomers are flexible polymers that can expand or contract easily upon the application of an external force. They have numerous crosslinks that pull them back into their original shape when stress is removed. Silicones, for instance, are highly elastic...

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Related Experiment Video

Updated: May 13, 2026

Preparation and Friction Force Microscopy Measurements of Immiscible, Opposing Polymer Brushes
13:57

Preparation and Friction Force Microscopy Measurements of Immiscible, Opposing Polymer Brushes

Published on: December 24, 2014

Polymer brushes under high load.

Suzanne M Balko1, Torsten Kreer, Philip J Costanzo

  • 1Department of Chemical Engineering and Materials Science, University of California Davis, Davis, California, USA.

Plos One
|March 22, 2013
PubMed
Summary
This summary is machine-generated.

Researchers developed a validated model for polymer coatings, predicting repulsive forces under high compression using polymer solution properties. This addresses a 25-year gap in understanding these forces in solution.

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Area of Science:

  • Materials Science
  • Surface Chemistry
  • Physical Chemistry

Background:

  • Polymer coatings are essential for creating repulsive forces between surfaces in solution.
  • Despite extensive research over 25 years, a quantitative model for predicting repulsion under strong compression is still missing.

Purpose of the Study:

  • To develop and validate a quantitative model for repulsive forces in polymer coatings under high compression.
  • To establish a predictive framework for polymer coating behavior based on solution properties.

Main Methods:

  • Combined experimental studies, computational simulations, and theoretical analysis.
  • Investigated polymer coatings subjected to high mechanical loads.

Main Results:

  • Demonstrated a validated model accurately predicting repulsive forces in polymer coatings.
  • Identified polymer solution properties as key predictors of universal repulsive behavior.

Conclusions:

  • The developed model provides a quantitative understanding of polymer coating repulsion under strong compression.
  • Universal behavior of polymer coatings can be predicted using fundamental polymer solution properties.