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Related Concept Videos

Polymer Classification: Architecture01:14

Polymer Classification: Architecture

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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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Polymerization generates chiral centers along the entire backbone of a polymer chain. Accordingly, the stereochemistry of the substituent group has a significant effect on polymer properties. Polymers formed from monosubstituted alkene monomers feature chiral carbons at every alternate position in the polymer backbone. Relative to the predominant orientation of substituents at the adjacent chiral carbons, the polymer can exist in three different configurations: isotactic, syndiotactic, and...
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Fiber-reinforced concrete significantly enhances the structural and nonstructural properties of traditional concrete by incorporating fibers like steel, glass, and polymers. These fibers, varying from natural ones such as sisal and cellulose to manufactured ones like polypropylene and Kevlar, are mixed into hydraulic cement with aggregates. Steel fibers, often preferred for their robustness, contribute to improved ductility, toughness, and post-cracking performance. The concrete is classified...
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Polymers: Molecular Weight Distribution01:10

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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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Updated: Jun 11, 2025

Author Spotlight: Enhancing Fiber Composite Laminate Quality with the Wet Hand Lay-Up/Vacuum Bag Process
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Editorial: Advanced Polymer Composite Materials: Processing, Modeling, Properties and Applications II.

Giorgio Luciano1, Maurizio Vignolo1

  • 1National Research Council of Italy-Institute of Chemical Sciences and Technologies "Giulio Natta" CNR SCITEC, Via De Marini 6, 16149 Genova, Italy.

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Summary

This collection explores advanced composite materials, highlighting innovations and applications. Discover the latest research in materials science and engineering for diverse industries.

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Area of Science:

  • Materials Science
  • Polymer Science
  • Engineering

Background:

  • This special issue presents a curated selection of research on composite materials.
  • It follows the success of a previous collection, demonstrating continued interest in the field.

Discussion:

  • The papers cover a wide range of topics within composite materials.
  • This includes synthesis, characterization, processing, and applications.

Key Insights:

  • The collection showcases cutting-edge advancements in the field.
  • It provides valuable insights into the behavior and performance of various composite systems.

Outlook:

  • Future research directions in composite materials are explored.
  • Potential applications in aerospace, automotive, and biomedical fields are discussed.