Poly(norbornene)s as matrix materials for platinum tetrakis(pentafluorophenyl)porphyrin based optical oxygen sensors |
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| Authors: | Kurt Stubenrauch Fabian Niedermair Torsten Mayr Gregor Trimmel |
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| Affiliation: | a Institute for Chemistry and Technology of Materials (ICTM), Graz University of Technology, Stremayrgasse 16, A-8010 Graz, Austria
b Institute of Analytical Chemistry and Radiochemistry (ACRC), Graz University of Technology, Technikerstrasse 4, A-8010 Graz, Austria |
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| Abstract: | A set of poly(norbornenes) was prepared using ring opening metathesis polymerization (ROMP) and used as matrix material for the preparation of optical oxygen sensor layers based on platinum tetrakis(pentafluorophenyl)porphyrin (PtTFPP) as the sensitive dye. Different polymers were prepared and investigated in order to retrieve information on the influence of the anchor group and the side chain attached to the polymer backbone on their performance as matrix material for the dye. Bulky side groups increased the oxygen permeability through ROM polymer layers, especially when the bulky group was directly attached via an anchor group to the polymer backbone without any aliphatic spacer in between. Sensor layers made of poly(endo,exo[2.2.1]bicyclo-5-heptene-2,3-dicarboxyclic acid di-tert-butylester) and PtTFPP exhibited the highest τ0/τ ratio and responded strongly to small amounts of oxygen. |
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| Keywords: | Poly(norbornene)s Ring opening metathesis polymerization (ROMP) Optical sensor Oxygen permeability |
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