Monomer

The overall purpose of the study was to create a model based off the crystal structure of the endonuclease domain of Bacillus subtilis MutL. This structure, in particular, exposes the presence of zinc in the binding site which is important for the MMR function of BsMutL in vivo. From there, they proposed a model describing the association of MutS and DNA polymerase III, β clamp with MutL, and nicking of a synthesized DNA strand. The importance of MutL is in its united effort with MutS to…

Materials and reagents Analytical grade bentazon was purchased from Sigma-Aldrich. Acetonitrile, methanol, ethanol, chloroform and acetic acid were purchased from Merck and were analytical or HPLC grade. Methacrylic acid (MAA) as the functional monomer, ethylene glycol dimethacrylate (EDMA) as the cross-linker and α,α′-Azoisobutyronitrile (AIBN) were purchased from Merck (Hohenbrunn, Germany). MAA was distilled under vacuum to remove the inhibitor prior to polymerization. To clean the inhibitor…

occurs over the narrow concentration range. These aggregates contain 50 or more monomers are called micelles. The concentration of monomer at which micelles form is called as critical micelle concentration (CMC). Below the cmc, the concentration of amphiphile undergo absorption by increasing air-water interface as the total amphiphile is raised. It reached some point the interface and bulk phase become saturated with monomers, this is nothing but cmc. To form micelle in the bulk phase, we will…

Catalase is an enzyme that accelerates the decomposition of hydrogen peroxide into oxygen and water. Catalase is a tetramer, composed of four monomers wrapped into a dumbbell shape (Nguyen). Each monomer has a heme molecule, a part indispensable to the decomposition of hydrogen peroxide. The heme molecule is responsible for binding oxygen. It is disc like in shape and contains an iron atom at their center. In the decomposition…

Plastics are a material currently being used all around the world. As the production of this synthetic polymer has increased, it has become almost impossible to completely avoid interaction with a plastic material. With the discovery of this practical material, positives and negatives were discovered too. Plastics have a strong effect on the environment and human health. During manufacturing, additives are put in that can be harmful to each of these important aspects. Due to their synthetic…

QUESTION: Give the Preparation, Properties and Applications of any four POLYMERS 1. Polyethenics ( Vinyl Resins) They are obtained by the polymerization of monomers containing the ethylenic bond (-C=C-) I. Polyethylene ( PE ) Polyethylene is one of the simplest and most inexpensive polymers. It is a waxy, chemical inert plastic. It a thermoplastic formed by the addition polymerization of ethylene. There are two types of polyethylene  Low Density polyethylene (LDPE) By using free radical…

The product formed by the polymerization reaction is called as polythene. Globally about 80 million tons of polyethylene is produced. The important application of the polymer is for packing. The monomer used in this reaction is C2H4. The monomer is usually produced from petro chemical process or by dehydration of ethanol. The most widely used catalyst for the polymerization of ethylene are titanium(III)chloride which is popularly called as the Ziegler Natta catalyst…

three different surface materials were treated with Poly ethyl methacrylate monomer, Minute-Stain glaze, or mono-poly glaze. These different samples were compared after 30 days. Samples were analyzed with the use of scanning electron microscope. Initially the surface of all samples was intact. Fewer irregularities were seen in monopoly and Minute-Stain glaze treated samples. After 30 days, untreated liner and treated with monomer showed severe wear with exposure of generalized pits and holes.…

composed of multiple smaller molecules, which are known as monomers. One particular reason some monomers form these bonds in polymerization is to share electrons between atoms at the end of each monomer. Monomers are often able to bond in this way due to their carbon double bonds, and outermost atoms. One process of this is referred to as dehydration synthesis, when at least one oxygen atom and two hydrogen atoms are lost by two monomers in order to form chemical bonds, creating water as a…

obtained was dried by MgSO4. After filtration of MgSO4, the excess ethyl vinyl ether was removed by rotary evaporation. The fraction at 51 °C /80 Pa from the remaining solution was collected under reduced pressure distillation. The final product EEGE monomer is a colorless liquid (Yield: 76 %). Synthesis…