What are polymers and their properties?

Polymers are materials made of long, repeating chains of molecules. The materials have unique properties, depending on the type of molecules being bonded and how they are bonded. Some polymers bend and stretch, like rubber and polyester. Others are hard and tough, like epoxies and glass.

What are the 5 properties of polymers?

Heat capacity/ Heat conductivity. The extent to which the plastic or polymer acts as an effective insulator against the flow of heat.

  • Thermal expansion. The extent to which the polymer expands or contracts when heated or cooled.
  • Crystallinity.
  • Permeability.
  • Elastic modulus.
  • Tensile strength.
  • Resilience.
  • Refractive index.
  • What are applications and uses of polymers?

    Clothing, floor coverings, garbage disposal bags, and packaging are other polymer applications. Automobile parts, windshields for fighter planes, pipes, tanks, packing materials, insulation, wood substitutes, adhesives, matrix for composites, and elastomers are all polymer applications used in the industrial market.

    What are 4 properties of polymers?

    Polymer properties

    • chemically unreactive.
    • solids at room temperature.
    • plastic – they can be moulded into shape.
    • electrical insulators.
    • strong and hard-wearing.

    What are three general properties of polymers?

    Ans: The various physical properties of polymers are their tensile strength, melting point, boiling point, hardness, heat conductivity, electrical conductivity, refractive index, elasticity, crystallinity, permeability, etc.

    How do polymers have different properties give examples?

    These polymers exhibit elasticity and are called elastomers. Example: Neoprene, Buna-S, Buna-R. Polymers with strong forces of interaction between the monomer in both linear and between the chains have higher tensile strength and are used as fibres. Example: Polyamides (nylon6,6), polyesters(terylene).

    What is physical properties of polymer?

    Physical properties of polymers include molecular weight, molar volume, density, degree of polymerization, crystallinity of material, and so on.

    Why do polymers have different properties?

    Why do different polymers have different properties? Answer: They have different chemical compositions (different monomer units), different structures, different ways of being fabricated, etc.

    What is a polymer explain the various types of polymers with applications?

    polymer, any of a class of natural or synthetic substances composed of very large molecules, called macromolecules, that are multiples of simpler chemical units called monomers. Polymers make up many of the materials in living organisms, including, for example, proteins, cellulose, and nucleic acids.

    What factors affect polymer properties?

    Polymer properties depend on the chemicals that the polymer is made from and polymerization conditions that ultimately set molecular architecture: chemical linkage type, chain length, and the nature of the end groups. The type of the monomer-repeat unit that forms a polymer has a strong effect on polymer properties.