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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.
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
• 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
rapid development of polymer chemistry after World War II a host of new synthetic fibers
STRUCTURE Kevlar Aramid Fiber is a synthetic (man-made) material known as Polymer. A polymer is a chain that is made up of many similar molecular groups, better known as ‘monomers’ that are bonded together. The ‘Monomers’ are made up of fourteen Carbon atoms, two Nitrogen atoms, two Oxygen atoms and ten Hydrogen atoms. A single Kevlar polymer chain could possibly have anywhere from one to five million monomers bonded together. A group of polymer chains can be organised together in a fiber.
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.
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.
Levy, Joel. The Bedside Book Of Chemistry. Vol. 1. Millers Point: Pier 9, 2011. 34-84. 1 vols. Print.
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
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...
Polyethylene is a polymer that is made of a long chain of CH2 monomers bonded together. It is one of the most commonly used polymers in everyday items. Grocery bags, soap bottles, children’s toys, and even bullet proof vests are all made from polyethylene.2 This polymer is very versatile and can be used in many materials but this all depends on the way that the polymer is chemically made or enhanced. There are many different types of polyethylene classified by density and branching. 2
INTRODUCTION What is a polymer? The term polymer comes from ancient greek, poly and mers meaning many parts. Polymer is a very large molecule comprising hundreds or thousands of atoms formed by successive linking of one or two, occasionally more, types of small molecules in chain or network structures. In Fig. 1, this specific molecular structure (chainlike structure) of polymeric materials is responsible for their intriguing mechanical properties.
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.
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
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...