Affiliation:
1. A.N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences (INEOS RAS); The Moscow State University of Civil Engineering
2. The Moscow State University of Civil Engineering
Abstract
An approach to the description and prediction of the elastic modulus of polymers in a rubbery state is presented. The description is based on the generalized equation proposed earlier by one of the authors of the work. The equation takes into account the contribution of cross-linked points to the elasticity of elastomers. This made it possible to describe the dependences of the elastic modulus on the concentration and size of crystallites. Such dependencies were obtained for the following polymers: polypropylene, polyisoprene, polybutadiene, polytetrafluoroethylene, polychloroprene, polydimethylsiloxane. For the same crystallite sizes, the elastic moduli for different polymers are close to each other, but they increase significantly with a decrease in the volume of crystallites.
Publisher
Publishing House Plastic Ltd
Subject
Polymers and Plastics,Chemical Engineering (miscellaneous)
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