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Aqueous diffusion in porous polymer powder compacts studied by terahertz pulsed imaging

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Publication date2013
Host publicationInfrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2013 38th International Conference on
Number of pages2
ISBN (Print)9781467347174
<mark>Original language</mark>English


Terahertz pulsed imaging (TPI) was used to analyse the diffusion of water into hydroxypropyl methyl cellulose (HPMC) matrices as well as acrylate copolymer matrices in reflection. Using TPI it is possible to monitor the phase changes that occur in the polymer matrix, investigate the growth kinetics of the process as well as follow the water diffusion front as it propagates through the porous polymer matrix.