Synthetic polyethylene

Electron beam cross-linking of hydrogels based on synthetic polyethylene oxide to produce materials for comeal prostheses. ... 

Along this same line of work, W.S. Wilson studied the prepn and sensitivity of RDX/ emulsifiable polyethylene wax compns. His work is reported in Ref 109. The synthetic polyethylene wax (AC-629, Allied Chemical Ltd), already used in a compn of HMX and terylene... 

Vesto-Wax. [AstorWax] Synthetic polyethylene wax to m release compounds, solv. and Uq. pdishes, sdid wax compds., hot-rndts, automobile rusquoofing coinpds., sOlv.-dispersed agric. coatings. 

A similar effect is observed in synthetic polyethylene glycols (PEGs),... 

Chem. Descrip. Synthetic polyethylene wax CAS 9002-88-4 EINECS/EEINCS 200-815-3 Uses Slip agent providing good rub in coatings and ink systems food... 

Candelilla synthetic Polyethylene, oxidized wax, antislipping agent Silica gel wax, candles... 

Synthetic Polyethylene, polylactic acid, polypropylene, polyglycolic acid, polyhydroxy butyrate, polyanhydride, polyacrylamide. 

Fmit juices are poured into retail containers, i.e. glass bottles, synthetic polyethylene pouches, aluminum cans, or aluminum-lined cardboard containers. 

This test method is applicable to petroleum derived waxes, including blends of waxes. This test method is not applicable to oxygenated waxes, such as synthetic polyethylene glycols (for example, Carbowax ), or natural products such as beeswax or camauba. 

Abstract. This paper presents results from quantum molecular dynamics Simula tions applied to catalytic reactions, focusing on ethylene polymerization by metallocene catalysts. The entire reaction path could be monitored, showing the full molecular dynamics of the reaction. Detailed information on, e.g., the importance of the so-called agostic interaction could be obtained. Also presented are results of static simulations of the Car-Parrinello type, applied to orthorhombic crystalline polyethylene. These simulations for the first time led to a first principles value for the ultimate Young s modulus of a synthetic polymer with demonstrated basis set convergence, taking into account the full three-dimensional structure of the crystal. 

A polymer is a macromolecule that is constructed by chemically linking together a sequent of molecular fragments. In simple synthetic polymers such as polyethylene or polystyrer all of the molecular fragments comprise the same basic unit (or monomer). Other poly me contain mixtures of monomers. Proteins, for example, are polypeptide chains in which eac unit is one of the twenty amino acids. Cross-linking between different chains gives rise to j-further variations in the constitution and structure of a polymer. All of these features me affect the overall properties of the molecule, sometimes in a dramatic way. Moreover, or... 

Figure 4.10 Crystal structure of polyethylene (a) unit cell shown in relation to chains and (b) view of unit cell perpendicular to the chain axis. [Reprinted from C. W. Bunn, Fibers from Synthetic Polymers, R. Hill (Ed.), Elsevier, Amsterdam, 1953.]...

CSMadditive pLASTOTffiRS, SYNTHETIC - Cm OROSULFONATED POLYETHYLENE] (Vol 8) Nickel dicydooctadiene [33221-58-8]... 

Olefin fibers, also called polyolefin fibers, are defined as manufactured fibers in which the fiber-forming substance is a synthetic polymer of at least 85 wt % ethylene, propjiene, or other olefin units (1). Several olefin polymers are capable of forming fibers, but only polypropylene [9003-07-0] (PP) and, to a much lesser extent, polyethylene [9002-88-4] (PE) are of practical importance. Olefin polymers are hydrophobic and resistant to most solvents. These properties impart resistance to staining, but cause the polymers to be essentially undyeable in an unmodified form. 

AUoys of ceUulose with up to 50% of synthetic polymers (polyethylene, poly(vinyl chloride), polystyrene, polytetrafluoroethylene) have also been made, but have never found commercial appUcations. In fact, any material that can survive the chemistry of the viscose process and can be obtained in particle sizes of less than 5 p.m can be aUoyed with viscose. 

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