soluble synthetic polymer (Maciborski‚ and Salamone)‚ while Borax is a natural mineral with many household uses. It can be used as herbicide‚ to bleach teeth‚ as a household cleaner‚ and a laundry booster‚ to name a few (Helmenstine). Figure 1: chemical diagrams of PVA(Adkins) and Borax (Lee)‚ respectively The two combine to form a slimy eco-friendly substance due to the crosslinking between polymer chains (“Nuffield Foundation”) Polymers are composed of
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VIETNAM NATIONAL UNIVERSITY HOCHIMINH CITY INTERNATIONAL UNIVERSITY School of Business ••• REPORT NYLON IN TRADING - COSTS AND BENEFITS ANALYSIS May 15th ‚ 2013 Lecturer: Dr. Ho Van Trung Thu Word count: TABLE OF CONTENTS Abstract …………………………………………………………………………………3 Nylons – Current status…………………………………………………………………..3 What is nylons?..................................................................................................................5 Root causes of nylons..........
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sterilizer Ethanol (C3COOH) -> solvent Polyethylene (CH2)n -> plastic 1D – identify that ethylene serves as a monomer from which polymers are made * Individual monomers of ethene join by covalent bonds to form long chain polymers 1E – identify polyethylene as an addition polymer and explain the meaning of this term * Addition polymerisation to form polyethylene (polyethene) * Ethene monomers join by organic peroxide breaking double C=C
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monomers make up lipids? What are the polymers called?_____________________________________________ 5. How many grams of carbohydrates are in your item?__________________________________ 6. How many Calories come from carbohydrates? Hint: 1 gram of carbs=4 Calories._________________________ 7. What is one function (job) of carbohydrates?_____________________________________________________ 8. What monomers make up carbohydrates? What are the polymers called?_______________________________
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4 Plasmon Resonances for PS@Au-Cu-Ag Composite Nanoshells 4.1 Introduction As shown in recent studies‚ various methods have been developed to expand the application area of noble metal nanoparticles and to control the morphology and the behavior. Composite microspheres with noble metal nanoshells have great advantages in catalysis‚ optics‚ conductivity‚ chemical sensors‚ and so on [1–5]. Moreover‚ these hybrid materials can prevent noble metal nanoparticles from agglomerating without the use of
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Title: Cassava starch as an effective component for Ideal Biodegradable Plastic Proponent: Zhaira Morysette L. Maco‚ III-Narra student Introduction: Inventions have evolved and continue to evolve such that after several years of study‚ research and experimentation reach great developments. With continuing efforts to investigate the constituents of Philippine plants‚ we have pursued investigation of starch of the cassava plant (Manihot esculenta). Cassava tubers were gathered‚ ground and squeezed
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Background Theory. Polyethylene Polyethyene is a type of polymer that is used in our daily life. Polyethylene(abbreviated PE) is a thermoplastic polymer‚ meaning that is can be melted to a liquid state and remolded as it returns to a solid state. PE is chemically synthesized from ethylene‚ a compound that is usually made from petroleum or natural gas[1]. The main mechanical properties of PE are the ultimate tensile strength and the modulus of elasticity. There are different types of Polyethylene
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their useful material properties and low production costs. Almost every product is constituted of some kind of polymer; however‚ traditional synthetic polymers (often called plastics)‚ such as polypropylene and polyethylene‚ are derived from non-renewable petrochemicals and are not readily biodegradable (http://www.plastice.org/ fileadmin/files/Brochure_teachers.pdf). The need for polymers and the products they constitute is ever increasing; however the use of non-renewable fossil fuels for plastic
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development and applications of new organic/inorganic hybrid materials. Polymer-inorganic nanocomposite present an interesting approach to improve the separation properties of polymer material because they possess properties of both organic and inorganic such as good permeability‚ selectivity‚ mechanical strength‚ and thermal and chemical stability. Composite material derived by combining the sol–gel approach and organic polymers synthesis of hybrid material were the focus area of review It has
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produced. The dextrose is then fermented‚ transforming into lactic acid. lactobacilli lactobacilli lactobacilli lactobacilli Dextrose lactic acid + carbon dioxide C6H12O6 CH3CHOHCOOH + CO2 The lactic acid is then altered into a polymer by condensation polymerisation‚ forming long chain molecular compounds into PLA. Lactic acid has been produced on the industrial scale since the 19th century and is mainly used in the food industry‚ cosmetics‚ pharmaceuticals and animal feed. The
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