Supporting Information

Assessment of chemicals released in the marine environment by dielectric elastomers useful as

active elements in wave energy harvesters

Mirela Zaltariov, Adrian Bele, Lavinia Vasiliu, Luiza Gradinaru, Nicoleta Vornicu, Carmen Racles,

Maria Cazacu

Figure S1. Aspect of the initial films dipped for 48 h in an environment containing a mixture of 10

microorganisms commonly found in aqueous media in concentration of 1x10-4μg/ml.

Figure S2. UV-Vis spectra of the seawater extracts after the immersion of the samples BUTYL,

NR, EPDM, NBR, CRSBR in the seawater solution during six months.

Figure S3. Comparative UV spectra for sea salt solution after six months of immersion of

elastomeric samples: a-batch B2; b – batch B1.2

Figure S4. ATR-IR spectra of the seawater extracts after the immersion of the samples NR,

NR/SBR, BUTYL, EPDM, CRSBR, NBR in the seawater solution during six months.

Figure S5. ATR-IR spectra of the seawater extracts after the immersion of the samples SR, SR1,

SR2, SR3 and SR4 in the seawater solution during six months.

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Figure S6. 1H NMR spectra of the organic extracts of the seawater samples of BUTHYL, NR,

EPDM, CRSBR and NBR in CDCl3. The peak at 0.07 ppm observed in all the spectra is given by an

impurity from the CHCl3 used for extraction (the reference sample). The spectrum for the reference

sample (solvent) also shows some very small intensity peaks at 0.8-2.1 ppm and 3.5-4.2 ppm.

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Figure S7. Illustrative XRF spectrum of the sea salt water after the immersion of sample BUTYL

for six months.

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