What does polymer mean

What is a polymer simple definition?

A polymer is any of a class of natural or synthetic substances composed of very large molecules, called macromolecules, which are multiples of simpler chemical units called monomers. Polymers make up many of the materials in living organisms and are the basis of many minerals and man-made materials.

What does the name polymer mean?

By definition, polymers are large molecules made by bonding (chemically linking) a series of building blocks. The word polymer comes from the Greek words for “many parts.” Each of those parts is scientists call a monomer (which in Greek means “one part”). Think of a polymer as a chain, with each of its links a monomer.

What is a polymer example?

Examples of synthetic polymers include nylon, polyethylene, polyester, Teflon, and epoxy. Natural polymers occur in nature and can be extracted. They are often water-based. Examples of naturally occurring polymers are silk, wool, DNA, cellulose and proteins.

What is polymer short answer?

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. … The term polymer is often used to describe plastics, which are synthetic polymers.

What is polymer one word answer?

A polymer is a molecule, made from joining together many small molecules called monomers. The word “polymer” can be broken down into “poly” (meaning “many” in Greek) and “mer” (meaning “unit”). … Proteins have polypeptide molecules, which are natural polymers made from various amino acid monomer units.

How do you explain polymers to a child?

Polymers are very big molecules made up of many smaller molecules layered together in a repeating pattern. In fact, the word polymer is Greek for ‘many parts. ‘ The smaller molecules that come together to form polymers are called monomers–small units that link together over and over to form a large polymer.

What does monomer mean?

monomer, a molecule of any of a class of compounds, mostly organic, that can react with other molecules to form very large molecules, or polymers. The essential feature of a monomer is polyfunctionality, the capacity to form chemical bonds to at least two other monomer molecules.

Which is the best definition of polymer?

: a chemical compound or mixture of compounds formed by polymerization and consisting essentially of repeating structural units.

What are polymers made from kids?

A polymer is a molecule, made from joining together many small molecules called monomers. The word “polymer” can be broken down into “poly” (meaning “many” in Greek) and “mer” (meaning “unit”).

What is a monomer kid definition?

Kids Encyclopedia Facts. A monomer is a single atom or molecule which is able to join with other monomers to make new substances called polymers. The words come from the Greek language where mono means “one”, poly means “many”, and meros means “a part”.

What are polymers video?

How are polymers formed?

A polymer is a large molecule made up of smaller, joined-together molecules called monomers. … Monomers join together to make polymer chains by forming covalent bonds—that is, by sharing electrons. Other bonds then hold the groups of chains together to form a polymer material.

What is not a polymer?

Examples of materials which are not polymers include:
  • Elements.
  • Metals.
  • Ionic compounds, such as salt.

What are characteristics of polymers?

Some of the useful properties of various engineering polymers are high strength or modulus to weight ratios (light weight but comparatively stiff and strong), toughness, resilience, resistance to corrosion, lack of conductivity (heat and electrical), color, transparency, processing, and low cost.

Is polymer A plastic?

Plastics are a group of materials, either synthetic or naturally occurring, that may be shaped when soft and then hardened to retain the given shape. Plastics are polymers. A polymer is a substance made of many repeating units.

Where does polymer come from?

Polymers range from familiar synthetic plastics such as polystyrene to natural biopolymers such as DNA and proteins that are fundamental to biological structure and function. Polymers, both natural and synthetic, are created via polymerization of many small molecules, known as monomers.

Who invented the polymer?

The first synthetic polymer was invented in 1869 by John Wesley Hyatt, who was inspired by a New York firm’s offer of $10,000 for anyone who could provide a substitute for ivory.

Are polymers toxic?

Most polymers are safe and non-toxic. That’s good. The monomers that are used to make polymers, though, are often toxic or stinky. That means that the companies that make polymers need to be very careful not to let the monomers get out before they’re made into polymers.

Are polymers recyclable?

Polymers do slightly break down as they are recycled — but this minor degradation is easily countered by mixing in calculated amounts of ‘virgin’ (new) plastic.

Is polymer a metal?

A polymer is a macromolecular material having a large number of repeating units linked to each other via covalent chemical bonds while metals are either pure elements or alloys. … The key difference between polymers and metals is that the polymers are lightweight than the metals.

What is the problem with polymers?

Most polymers, including poly(ethene) and poly(propene) are not biodegradable . This means that microorganisms cannot break them down, so they: cause a litter problem if disposed of carelessly. last for many years in landfill sites.

What is the most harmful plastic?

a cocktail of chemicals

The possible toxicological responses caused by plastic can thus be a combination of all of these chemicals. Some of these chemicals are defined as priority pollutants, which are regulated by governmental agencies because of their toxicity or persistence in organisms and food webs.

Why are polymers bad?

Polymers are not as toxic to people as the monomers they contain. But when cut, heated, or manipulated, polymers and their byproducts can release dangerous dust and vapors.