Abstract：
:In this study the diffusion coefficients of isoproturon, diuron and cybutryn in acrylate and silicone resin-based renders were determined. The diffusion coefficients were determined using measuring concentrations of biocides in the liquid phase after being in contact with renders for specific time intervals. The mathematical solution of the transient diffusion equation for an infinite plate contacted on one side with a limited volume of water was used to calculate the diffusion coefficient. The diffusion coefficients through the acrylate render were 8.10·10(-9) m(2) s(-1) for isoproturon, 1.96·10(-9) m(2) s(-1) for diuron and 1.53·10(-9) m(2) s(-1) for cybutryn. The results for the silicone render were lower by one order of magnitude. The compounds with a high diffusion coefficient for one polymer had likewise high values for the other polymer.
journal_name
Chemospherejournal_title
Chemosphereauthors
Styszko K,Kupiec Kdoi
10.1016/j.chemosphere.2016.06.077subject
Has Abstractpub_date
2016-10-01 00:00:00pages
273-9eissn
0045-6535issn
1879-1298pii
S0045-6535(16)30835-9journal_volume
160pub_type
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