Polymeric Macromolecules Research Paper

The term "polymer" derives from the ancient Greek word (poly, meaning "many, much") and (meres, meaning "parts"), and refers to a molecule whose structure is composed of multiple repeating units, from which originates a characteristic of high relative molecular mass and attendant properties.[6] The units composing polymers derive, actually or conceptually, from molecules of low relative molecular mass.[7] The term was coined in 1833 by Jöns Jacob Berzelius, though with a definition distinct from the modern IUPAC definition.[8][9] The modern concept of polymers as covalently bonded macromolecular structures was proposed in 1920 by Hermann Staudinger, who spent the next decade finding experimental evidence for this hypothesis.[10] Polymers are …show more content…
-In contrast to the prevailing rationalization of these substances as aggregates of small molecules, Staudinger proposed they were made up of macromolecules composed of 10,000 or more atoms.
-This limiting view was challenged by Hermann Staudinger, a German chemist with experience in studying natural compounds such as rubber and cellulose.
-Indeed, applications of these materials as fibers, flexible films, adhesives, resistant paints and tough but light solids have transformed modern society.

-A polymer can be a three dimensional network (think of the repeating units linked together left and right, front and back, up and down) or two-dimensional network (think of the repeating units linked together left, right, up, and down in a sheet) or a one-dimensional network (think of the repeating units linked left and right in a chain).
-Linking countless strips of construction paper together to make paper garlands or hooking together hundreds of paper clips to form chains, or stringing beads helps visualize polymers. "Applicable to substance macromolecular in nature like …show more content…
This property allows for easy processing and facilitates recycling. The other group, the thermosets, cannot be re-melted. Once these polymers are formed, reheating will cause the material to ultimately degrade, but not melt.

Every polymer has very distinct characteristics, but most polymers have the following general attributes.

1-the polymer has big resistant to chemicals:

Assume the cleaning fluids in the home that are packaged in plastic reading the labels that describe what happens when the chemical substances comes in contact with eyes, skin or ingest it will confirm the need for chemical resistance in the plastic packaging. "Reading the warning labels that describe what happens when the chemical comes in contact with skin or eyes or is ingested will emphasize the need for chemical resistance in the plastic packaging." [2]

2-it possible be both thermal and electrical insulators:

You can check in the house will reinforce this notion or concept ,and you have to look at all devices, cords, electrical outlets and wiring that consist or covered of polymeric materials.

3-polymers are very light in weight with significant degrees of

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