Proteins plastics

Chemical nature Isolation of casein from milk Production of casein plastics Properties of casein Applications Miscellaneous Protein Plastics Derivatives of Natural Rubber Gutta Percha and Related Materials Shellac... 

One mechanism that may be important in determining protein plasticity is the occurrence of second site suppressor mutations that serve to compensate for deleterious amino acid substitutions that interfere with... 

Schilling, C., Tomasik, R, Li, C. et ah. Protein plasticizers for aqueous suspensions of micrometric- and nanometric-alumina powder. Mater. Set Eng A Struct., 336, 219, 2002. 

D) Protein Plastics. To 0.1 g of casein in a test tube add 1 ml of 6 iV sodium hydroxide solution and 1 ml of water. Warm and shake until it dissolves. Pour one half of this solution on a watch glass, add 5 drops of formaldehyde, and stir with a rod. Examine both casein solutions after 5 minutes. 

Use Water-soluble lubricants solvents for dyes, resins, proteins plasticizers for casein and gelatin compositions, glues, zein, cork, and special printing inks solvent and ointment bases for cosmetics and pharmaceuticals intermediates for nonionic surfactants and alkyd resins. 

Polyvinyl resins Protein plastics Pyroxylin Rosins, synthetic Rosin modified resins Silicone fluid solution (fluid for sonar transducers)... 

Patents for preparing semi-plastic materials from soy protein were first issued in France (Contant Perrot, 1913) and Great Britain (Dodd Humphries, 1913), although S. Satow s U.S. patent of 1919 is credited with first stimulating widespread interest in soy protein plastics. Johnson and Myers (1995) provide a complete historical review on soybean plastics. No discussion of soy protein plastics is complete without at least mentioning the early research and commercialization efforts of H. Ford and the Edison Institute (Fig. 17.2). The Ford Motor Co. and the Edison Institute, headed by R. Boyer, were responsible for extensive protein plastic research, patents, and commercial applications in the late 1930s and 1940s. 

Compression-molded soy protein plastics are rigid and brittle without plasticizers present in the formulation (Paetau et al., 1994). Water absorption of early protein plastics could not be reduced to the very low levels that were obtained with synthetic, petroleum-derived resin products however, color, dyeing, and strength properties were good and production costs were relatively low (Johnson Myers, 1995). 

Otaigbe, U.J. O.D. Adams. Novel bioabsorbable polyphosphate/soy protein plastic composites. Int. SAMPETech. Conf. 29. 1997a pp. 686-697. 

Wang, S. H.J. Sue J.L. Jane. Mechanical properties of soy protein plastics./. Macromol. Sci. Pure Appl. Chem. 1996,7133, 557-569. 

VII. Functional Roles for Protein Plasticity in Antigen Recognition.. 148... 

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