Influence of the degree of crystallinity on the elastic modulus in rubbery state of polymers
https://doi.org/10.35164/0554-2901-2022-3-4-11-15
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.
About the Authors
A. A. ASKADSKII
A.N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences (INEOS RAS); The Moscow State University of Civil Engineering
Russian Federation
Russian Federation
T. A. MATSEEVICH
The Moscow State University of Civil Engineering
Russian Federation
Russian Federation
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Review
For citations:
ASKADSKII A.A., MATSEEVICH T.A. Influence of the degree of crystallinity on the elastic modulus in rubbery state of polymers. Plasticheskie massy. 2022;(3-4):11-15. (In Russ.) https://doi.org/10.35164/0554-2901-2022-3-4-11-15
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