Name: Jeff Chudakoff Partners: Alejandra Garcia Date: 2 December 2011 TA: Mengbin Chen Skill Building Exercise #2 Answer the following questions: 1. What does it mean when a polymer is crosslinked? Crosslinked is one manner in which monomers link together. In this method‚ separate polymer chains are connected via bonds between the individual polymer chains. 2. We discussed how polymer linking and structure contribute to its properties. How would you expect the density‚ elasticity
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the following table. | |aldohexose | |What type of monomer is this? (1 mark) | | |Draw a ring structure of this monomer. Label. | | | |
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contain carbon Consist mostly of: carbon (c)‚ hydrogen (h)‚ oxygen (o) Monomers vs. Polymers Monomers: single-molecule that may react with similar molecules to form a chain Polymers: a chain of many monomers that are chemically bonded together. How are polymers formed? Dehydration Synthesis (Condensation): two hydrogen atoms and one oxygen atom are removed from the monomers to form water‚ and the two monomers are joined together. How are polymers broken down? Hydrolysis—the reverse
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Proteins – Nucleic acids • Macromolecules are large molecules (polymers) composed of thousands of covalently connected (monomers). • Everything is made of atoms molecules macromolecules. Macromolecules are polymers‚ built from monomers • A polymer is a long molecule consisting of many similar building blocks. • These small building-block molecules are called monomers. • Three of the four classes of life’s organic molecules are polymers: – Carbohydrates – Proteins – Nucleic acids
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compounds are carbohydrates‚ lipids‚ nucleic acids‚ and proteins. Each which are made up of elements and monomers. Each organic compound has it’s own function and chemical structure. Each compound also plays a role in living organisms. Carbohydrates are composed of several elements‚ and one monomer. The elements include: carbon‚ hydrogen‚ and oxygen atoms. Carbohydrates are composed of only one monomer‚ which is monosaccharides. Monosaccharides are the simplest carbohydrates‚ and are required as energy
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INTERCHAPTER S Synthetic Polymers The formation of nylon by a condensation polymerization reaction at the interface of water and hexane‚ two immiscible solvents. The lower water layer contains the compound hexanedioyl dichloride‚ Cl C(CH2)4C O O Cl hexanedioyl dichloride The reaction produces nylon and HCl(aq). The polymer forms at the interface between the two solutions and is drawn out as a continuous strand. University Science Books‚ ©2011. All rights reserved. www.uscibooks.com
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1. INTRODUCTION SilCote aluminum pigment is manufactured by mixing aluminum paste with Monomer‚ SR-350 (trimethylolpropane trimethancrylate) and additive‚ Z-6040 which is an epoxy-functional Silane (3-glycidoxypropyl trimethoxy silane)‚ in a jacketed mixer with the presence of catalyst‚ ABIN (azo-bis-isobutyronitrile). White spirit‚ acts as the carrier solvent in the process. 2. PROCESS FLOW The aluminum paste is first loaded into the jacketed mixer‚ followed by introducing a pre-determined
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-------------- Macromolecules are polymers‚ built from monomers - Carbohydrates‚ proteins‚ and nucleic acids are all chain-like molecules called Polymers Polymer- is a long molecule consisting of many similar or identical building blocks linked by covalent bonds. Example: Much as a train consists of a chain of cars. Monomer- A subunit that serves as the building block of a polymer -Some molecules that serve as monomers also have other functions of their own. --------------
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Introduction Polystyrene is one of the most widely used plastics‚ with applications ranging from food packaging to appliances to manufacturing (Maier). On an industrial scale‚ polystyrene is derived from its monomer‚ styrene. This is achieved by free-radical polymerization of a solution of monomer‚ polymer‚ and initiator. This reaction is a multistep radical reaction that includes initiation‚ propagation‚ and termination (Eq.B.1 through Eq.B.5). Figure A.1 shows a process that produces 1000 kg/hr of
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hydroxide it used for deprotonation upon the substituted methyl group. This creates a carbocation. The carbocation attacks another similar monomer in which the thiolane is the leaving group. This creates two thiolanes on one monomer and one thiolane on the other monomer. The monomer with two thiolanes loses one of the thiolanes to form a double bond near the monomer with one thiolane. The mono with one thiolane gets deprotonated and continues the chain. This cannot work without heat. Chlorine itself
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