Fusion properties

Some of these ambiguities can be partially solved using a simple approach recently proposed by Gamier et al. [62], The sublimation pressure of a solid can be estimated using experimental fusion properties and the vaporization enthalpy derived from the equation of state. Using the Clapeyron equation P b can be approximated by ... 

Hence, the estimation of the sublimation pressure requires only the fusion properties, r/ and AHl which are more easily available in the literature. Using this approach more reliable results are obtained. 

Photowala H, Blackmer T, Schwartz E et al (2006) G protein betagamma-subunits activated by serotonin mediate presynaptic inhibition by regulating vesicle fusion properties. Proc Natl Acad SciUSA 103 4281-6... 

Danusso, F., and G. Gianotti The three polymorphs of isotactic poly-pentene Dilatometric and thermodynamic fusion properties. Makromol. Chem. 61, 139—156 (1963). 

Garnier, S. Neau, E. Alessi, P. Cortesi, A. Kikic, 1. Modelling solubility of sohds in supercritical fluids using fusion properties. Fluid Phase Equilib. 1999, 158—160, 491—500. 

Chrastil J. Solubility of solids in supercritical fluids using fusion properties. J Phys Chem 1982 86 3016. 

Historical Perspective General Theory of Plasticization Plasticizer Compatibility Compatibility Stability Fusion Properties of Plasticizers Plasticizer Concentration Effects Heat Stability Odor Development... 

Internal lubricants are chemicals that promote resin flow without affecting the fusion properties of a compound. 

Blending of suspension PVC having different K numbers is used in practice to adjust melt rheology or to combine better fusion properties of a... 

Collas, P., and Poccia, D. L. (1996). Distinct egg membrane vesicles differing in binding and fusion properties contribute to sea urchin male pronuclear envelopes formed in vitro. J. CellSci. 109,1275-1283. 

Freezing of total egg MVs does not affect vesicle separation in sucrose gradients, and does not affect their chromatin-binding and fusion properties. 

Outstanding property high resistance to hydrolysis good fusion properties, good resistance to weathering... 

Since PVC is less thermally stable than many other polymers, lubricants and thermal stabilizers are always included in PVC formulations. Lubricants are typically oxidized polyethylene waxes, simple 165° melting paraffin waxes that have a range of melt temperatures. Lubricants are used to vary the fusion properties of PVC and to facilitate flow at the metal-polymer interface in the processing equipment. Thermal stabilizers are used to prevent dehydrohalogenation or unzipping of the polymer by loss of HCl which, even at well less than 1% decomposition, results in discoloration. Calcium stearate at low levels acts as an internal lubricant and enhances fusion. At higher levels it acts as an external lubricant. In addition, it has some stabilizer properties, analogous to other metal so s. 

The most commonly employed fillers in plasticized PVC are the precipitated forms of calcium carbonate (CaCOy) and related minerals such as dolomite (calcium magnesium carbonate). CaCOj fillers are diroated with fatty acids to improve physical properties of PVC, particularly flex life and elongation at break. The effect of calcium carbonate fillers on fusion properties of PVC is reviewed (47). Other fillers include china clay, calcined clay, asbestos, barytas, talc, alumina and kieselguhr and silicates. Micaceous-talc fillers in PVC which are polyblended with acrylonitrile rubber shows an extraordinary effect. Small amounts improve elongation and energy to break. 

Coker TG, Ambrose J, Janz GJ (1970) Fusion properties of some ionic quaternary ammonium compounds. J Am Chem Soc 92 5293-5297... 

Fusion Properties Fusion properties are governed primarily by plasticizer type and level as well as resin molecular weight. As the molecular weight of the resin increases, the fusion time increases. This is critical since the improved physical properties observed with higher-molecular-weight resins occur only when the higher-... 

Fusion Properties The fusion properties of rigid PVC resin depend... 

Fusion Properties As with both flexible and rigid PVC, the higher the resin molecular weight, the slower the fusion. Plasticizer selection also plays a major role in plastisol fusion properties. PVC/vinyl acetate and other copolymer resin systems are sometimes used to speed fusion in plastisol systems. As the copolymer content increases, the rate of fusion increases. 

Eastman Plasticizer Technical Tip, Fusion Properties of Eastman Plasticizers vs. Hexamoll DINCH - US (TT-25), Eastman Chemical Company, November 2004. 

Douglas, A. R., Skehel, J. J., and Wiley, D. C., 1987, The receptor binding and membrane fusion properties of influenza virus variants selected using anti-haemagglutinin monoclonal antibodies, EMBO J. 6 1459-1465. 

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