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Properties of polymers essay
Essay on polymers
Importance of polymers in daily life
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Polymers are always been around everywhere we go and have been increasing as time goes on. From its inception until today, polymers have enhanced our quality of life. The common questions asked here are usually what they are, where can I find them, where did they come from, how they are made, and what are some future possibilities? The first thing you might want to know about polymers is what they are.
Polymers can be very complicated and you can do into great depth to what they are. “Polymers are molecules which consist of a long, repeating chain of smaller units called monomers.” The next question would be what monomers are. Monomers are atoms about 4-10 atoms in size. When monomers are combined together they create polymers. (Anissimov) Polymers are simply a very long chain of atom chemically bonded together. When polymers form together they can form three different type of configurations or they patterns in which the atoms or bonded together. The three configurations are Homopolymer, Copolymer, and Graft polymer.(Teegarden)
Polymers are everywhere even if you might not know it. Polymers have always been always been everywhere but now there are even more and still growing. We are made out of many polymers are DNA, muscles, and bones are polymers. Today we make synthetic polymers. Today there is a lot of thing s that is made of synthetic polymers. A couple examples of these are clothes, plastics, and packaging. As polymers get more advances we will see them even more often. Polymers has already in almost every food item. They add polymers to protect them physically against microorganisms, water, and etc.(Teegarden)(Plastics and Polymers )
Polymers have a rich history to go along with I uses today. Humans using polymers ...
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...a purpose. Polymer has increased our quality of life. Polymers will always be getting but with the research that keeps going on and on.
Works Cited
Anissimov, Micheal. What are Polymers? 11 October 2009. 31 October 2009 .
Future of Plastics: Designing Tomorrow's Sustainable Polymer. 12 December 2008. 5 November 2009 .
History of Polymers. 31 October 2009 .
Plastics and Polymers . 2009. 4 November 2009 .
Teegarden, David. Polymer Chemistry Introduction to an Indispensable Science. New York: NSTA Press National Science Teachers Associat, 2004.
Walton, David and Phillip Lorimer. Polymers. New York: Oxford University Press, 2005.
• Lowering freight costs because of the light weight of plastics. • Plastics can be shaped and made in different patterns hence advantageous for marketing and shipping. • Plastics are made from natural resources such as
The rattling commencement of plastic was appointed by Aleksander Parkes He presented a material called Parkesine ,which was both named after him and an non- synthetic material derived from cellulose ,which when heated could be molded and wrought, and after cooling the substance sustain the shape it was primitively wrought into. As time advanced plastic had become more in demand and is now one of the most common materials of our time. In terms of quantity us humans are using twenty times more plastic today than fifty years ago.
rapid development of polymer chemistry after World War II a host of new synthetic fibers
Polymer creatures are very fascinating, because they can grow when put in liquids, and experiments are going to be conducted relating to this growing. A polymer is a very long chain of molecules strung together (What). Polymers are very versatile, and can have almost limitless colors and characteristics (Definition). One of these qualities is absorbency, and some can absorb as much as five hundred times their weight in water (Growing). It is hypothesized that if the polymer creatures are submerged in water for a day it will at least double in size, while it will not grow as much when put in Sprite.
Kevlar fiber is therefore a “Polyaromatic amide”, as it has a high breaking strength. Polymer chains are long, individual chains, although they behave as if they are attached to each other. The individual chains are actually held together by ‘Electrostatic Forces’ between molecules, also known as ‘Hydrogen Bonds’. Scientists discovered this, by using a special type of X-ray microscopy called ‘XANES’. This was able to reveal the orientation of molecules in materials.
The synthesis of polymers starts with ethylene, (or ethene). Ethylene is obtained as a by-product of petrol refining from crude oil or by dehydration of ethanol. Ethylene molecules compose of two methylene units (CH2) linked together by a double carbon
The purpose of this experiment was to create a polymer by reacting a mixture of decanedioyl dichloride and dichloromethane with a mixture of water, 1,6-hexadiamine and sodium carbonate. Specifically, we created the polymer Nylon-6,10. Nylon-6,10 polymers are used in a vast majority of things we use in everyday life such as zippers, the bristles in brushes, and even car parts. This experiment was different from the industrial method of making nylon because that takes place at a much higher temperature. A polymer is a substance that has a structure made of similar or identical units bonded together. All polymerizations fall into two categories: step-growth and chain-growth (both of which we used to form our polymer). Step growth polymerization
Levy, Joel. The Bedside Book Of Chemistry. Vol. 1. Millers Point: Pier 9, 2011. 34-84. 1 vols. Print.
Ever since I began studying science and mathematics at all levels of educations I have always had an interest in the production of useful materials. In the growing turmoil of today; a world full of global warming and diminishing resources, questions often arise in my mind such as, "can we make a more efficient, more durable and a renewable resource that will overshadow fossil fuels? and have less of an impact on our environment?" Up to now, I have not found a solution to these questions and answering these questions is a personal aspiration of mine which I aim to fulfil by achieving a degree in Chemical engineering and eventually I will contribute to the field in my own unique way. The debate surrounding sustainable energy fascinates me, having recently learned from personal research I have understood what an authoritative role chemists and chemical engineers play in the industry at the present time and how, by working as a team, they contribute to an improved future for the whole world. However, one of the main reasons that has single-mindedly driven me this far to want to study chemical engineering is a book I have read, “Beyond the Molecular Frontier: Challenges for Chemistry and Chemical Engineering” While reading this book, I had solidified my understandings of what chemical engineering is all about. Also, one of the main processes mentioned was polymerisation and is something I already study in A-level chemistry, it is something that not only interests me, but is a personal career aspiration of mine. Reading this book gave me a determination to be the person who helps improve the future of the industry and provide an answer to the questions I always ask myself by studying this degree.
Polymer-Polyethylene is partially crystalline as well as amorphous because it has crystalline and amorphous regions. Also it has linear chains so this is the simplest structure compared to a branched or network chain. This can be of an advantage to it over other types of materials as its good toughness and elongation makes it very significant in the engineering industry as it can be moulded or extruded into shape...
Boston: Unwin Hyman, 1988. Works Consulted -. Sazlberg, Hugh W. From Caveman to Chemist: Circumstances and Achievements. Washington, D.C.: American Chemical Society, 1991.
that make thousands of types of plastics. Ink pens, car parts and plastic bags are all made
The mechanical properties of a polymer involve its behavior under stress. These properties tell a polymer scientist or engineer many of the things he or she needs to know when considering how a polymer can be used. How strong is the polymer? How much can we stretch it before it breaks? How stiff is it? How much does it bend when push on it? Is it brittle? Does it break easily if hit it hard? Is it hard or soft? Does it hold up well under repeated stress? The mechanical properties of polymers are one of the features that distinguishes them from small molecules.
My main aim during my undergraduate studies was to get an overview of the various fields in chemical engineering and identify a field of interest in which I could pursue my research career. Because of their vast applications, Materials & Polymer Sciences, in general, have attracted m...
Plastics have revolutionized the way we do business, the way we move from place to place, and the way we imagine our world. Devices like cellular phones, laptops, syringes, cars and credit cards all use plastic in their manufacture and were not uneconomical or in some cases physically impossible to make without this malleable substance. Plastic manufacturing varies by product.