Polymer Processing and Properties

The network is deformed at a constant temperature T and a rate of elongation e. During deformation, the bonds between chains are allowed to break according to the E3uing kinetic theory of fracture (7), ie, at a rate 

r is the thermal vibration frequency, U and fi are the activation energy and volume, and 

In equation (4), n denotes the number of statistical chain segments of length I in the strand whereas L is the inverse Langevin function and a is a proportionality constant. 

Equations (2) and (3) for the attractive bond breaking process are executed on the computer with the help of a Monte-Carlo lottery in which bond i breaks according to a probability 

A similar set of transitions can be obtained by keeping the molecular weight constant and varying the entanglement spacing, as is obtained in solution cast 

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G. Pastuska, Polymer Processing and Properties (G. Ast-arita, L. Nicolais, eds.) Plenum Press, New York, p. 295 (1984). 

Rosato, D. V., Polymers. Processes and Properties of Medical Plastics in Synthetic Biomedical Polymers, Szycher-Robinson (eds.), Technomics, 1980. 

Rosato, D. V. (1983) Polymers, processes and properties of medical plastics including markets and applications, in Biocompatible Polymers, Metals and Composites, (ed. M. Szycher), Technomic. Publ. Co. Inc., Lancaster, Chapter 45, pp. 1019-67. 

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