Abstract
Underwater Sound Reference Detachment, Naval Res. Lab., P.O. Box, 568337, Orlando, FL 32856-8337. The complex Young's modulus is compared with the complex dielectric modulus in four different types of elastomer in the rubbery regime above the glass transition temperature. The elastomers measured included 5109G unfilled neoprene, PR1526 polyurethane, 334-270 natural rubber, and B252 butyl rubber. Results of the comparison support the view that there is a correspondence between the two effects as predicted from thermodynamic considerations. Possible models for the coupling are discussed.
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