Gelatin rubber elasticity

During the crosslinking reactimi, the adhesives pass through the states Uquid gelatinous rubber elastic sohd. 

Using gelatin as a model cross-linked elastomer, its rubber elasticity can also be demonstrated by a simple stretching experiment. Thin slices of the... 

Gummidynamit. A German rubber-like, elastic mass obtd by dissolving Collod Cotton in NG. Its compn is similar to Sprenggelatine (Blasting Gelatin)... 

Because of its elastic texture and tendency to harden, marshmallow was assumed to exist in a rubber state. Molecules in the rubbery state of marshmallow can be mobile and lead to sugar crystallization, loss of moisture from the matrix, cross-linking of proteins in gelatin, and collapse of foam. In order to stabilize the product, it is necessary to identify the factors limiting the shelf life of the marshmallow under a specific storage condition. 

A protein that is similar to collagen is elastin, which is present in elastic tissues, such as tendons and arteries. Hydrolyses of elastin, which has rubber-like properties, however, do not yield gelatin. Mildly hydrolyzed elastin can be fractionated into two proteins. ... 

In processes illustrated on these figures, plasticizers are required for final product performance to increase elastic properties of manufactured products. Gloves are coated with rubber latex. Its viscosity is adjusted by the plasticizer. Caplet coating for pharmaceutical applications is done by immersion in a gelatin solution where water is solvent and processing plasticizer. 

Wherever each molecular chain approaches, crystallites are formed, leading to the formation of a 3D network. This structure explains weU the main properties of the gel, such as the melting point, degree of optical rotation, modulus, and rubber-like elasticity. However, a few kinds of networks coexist in the photosensitive material depending on the manufacturing and development methods, the behavior of gelatin gels is very complex. 

The molecular basis of contractility is now quite well understood. It is generally assumed that elastic proteins and rubber-like materials are built of flexible polypeptide chains. The similarity in the molecular mechanism of such materials is indicated by the fact that all yield S-shaped curves. Such curves are obtained for gelatin and glue, and by Treitel (95) for cellulose in the living plant. 

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