Polymers in everyday life
Figure 6: Common abbreviations for recycling codes and their polymer name and structure.
Uses of polymers in daily life pdf
The Chemistry of Polymers. If she opens the refrigerator to get out a milk container, it too will be made of plastic, or of paper with a thin plastic coating. Product made from polymers are all around us: clothing made from synthetic fibers, polyethylene cups, fiberglass, nylon bearings, plastic bags, polymer-based paints, epoxy glue, polyurethane foam cushion, silicone heart valves, and Teflon-coated cookware. The plastic kits and covers are mostly made of synthetic polymers like polythene and tires are manufactured from Buna rubbers. Her clothes, too, are likely to contain synthetic materials made of polymers. However, his greatest creation still lay ahead of him. A polymer network consists of many polymer chains connected through a number of covalent linkages called cross-links. Boston: Houghton Mifflin, An even more important innovation happened in , when Belgian-American chemist Leo Baekeland introduced Bakelite. The latter, created in a reaction between phenol and formaldehyde, was a hard, black plastic that proved an excellent insulator. Cellulose, a polysaccharide, is used by many plants for structural stability.
On the way to the health club, she will ride in a car that contains numerous plastic molds in the steering wheel and dashboard. Again, polyacrylamide can be derived from polyethylene by substituting a hydrogen atom with an amide functional group.
Polymers, especially acrylic polymers are usually not the topics of everyday discussion, yet they do appear in our everyday lives.
Importance of polymers in daily life ppt
Polycarbonate also includes an ester linkage within the polymer back-bone. Galas, Judith C. A wide variety of synthetic polymers are available with variations in main chain as well as side chains. One impediment to recycling, however, is the fact that most state and local governments do not make it convenient, for instance by arranging trash pickup for items that have been separated into plastic, paper, and glass products. Instead, it is a specialized, broad and unique discipline that could cover some parts of chemistry and several other scientific fields as well. If she opens the refrigerator to get out a milk container, it too will be made of plastic, or of paper with a thin plastic coating. During the s, clothes of polyester became fashionable, but by the early s, there was a public backlash against synthetics, and in favor of natural materials.
Also silicon forms similar materials without the need of carbon atoms, such as silicones through siloxane linkages; these compounds are thus said to be inorganic polymers. Not everything you see here has a polymeric composition.
Slide 6 Introduce students to the different chemical players involved in making silly putty: monomer, cross-linker and polymer. During the s, clothes of polyester became fashionable, but by the early s, there was a public backlash against synthetics, and in favor of natural materials.
They are however expensive when compared to the synthetic polymers.
When she gets out of the shower, she dries off with a towel containing a polymer such as rayon, perhaps while standing on tile that contains plastics, or polymers.
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