Abstract
A radiotracer based method for the determination of the rate of expel of a swelling agent from a swelling agent saturated polymer foil induced by a second organic liquid (i.e., blowing agent for foaming of polymers) has been set up and tested. The method was applied to acetone swollen polyetherimide (PEI) foil and 1,1,1-trichloroethane and ethanol (blowing agents) systems. By combining the results of radiotracer measurements with those obtained by measuring foil weights, the amount of the respective blowing agents that replaced acetone in the PEI foil was determined.
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Kluit, P.W.C.P., Volkers, K.J. & Kolar, Z.I. Replacement of acetone in acetone-swollen polyetherimide (PEI) foils with 1,1,1-trichloroethane or ethanol: An [14C]acetone aided radiotracer study. J Radioanal Nucl Chem 219, 47–50 (1997). https://doi.org/10.1007/BF02040263
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DOI: https://doi.org/10.1007/BF02040263