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pro vyhledávání: '"Kiyoo Yamashita"'
Publikováno v:
Polymer. 35:5626-5629
The longitudinal sound velocities in crosslinked polyacrylate hydrogels were measured as a function of water content in the gel in the temperature range 30–100°C. The sound velocity changed drastically around a water content of 40–50 wt%. Above
Publikováno v:
Japanese Journal of Applied Physics. 32:2234
The longitudinal and transverse sound velocities for polyvinylchloride and polycarbonate with different molecular weights were measured at 30°C. The temperature dependence of the longitudinal sound velocity was measured up to 110°C. The longitudina