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Projects / Programmes source: ARIS

Initial stages in surface functionalization of polymers by plasma radicals

Research activity

Code Science Field Subfield
2.04.03  Engineering sciences and technologies  Materials science and technology  Polymer materials 

Code Science Field
T150  Technological sciences  Material technology 

Code Science Field
2.05  Engineering and Technology  Materials engineering 
Keywords
polymer, surface functionalization, hydrophilization, plasma radicals, in-situ XPS characterisation
Evaluation (rules)
source: COBISS
Researchers (21)
no. Code Name and surname Research area Role Period No. of publicationsNo. of publications
1.  50413  Andrej Benda    Technical associate  2019 - 2022 
2.  25790  PhD Mojca Božič  Chemical engineering  Researcher  2019  218 
3.  35960  PhD Žiga Gosar  Manufacturing technologies and systems  Researcher  2019 - 2022  57 
4.  27558  PhD Silvo Hribernik  Textile and leather  Researcher  2019 - 2022  301 
5.  51483  Blaž Kaplan    Researcher  2019 - 2022 
6.  36303  PhD Rupert Kargl  Textile and leather  Researcher  2019 - 2021  291 
7.  52954  Boris Kastelic  Energy engineering  Researcher  2020 - 2022 
8.  15703  PhD Janez Kovač  Electronic components and technologies  Researcher  2019 - 2022  680 
9.  24332  PhD Manja Kurečič  Materials science and technology  Head  2019 - 2022  230 
10.  10429  PhD Miran Mozetič  Electronic components and technologies  Researcher  2019 - 2022  1,356 
11.  22407  PhD Alenka Ojstršek  Textile and leather  Researcher  2019 - 2021  212 
12.  52595  Azra Osmić  Chemistry  Researcher  2019 - 2021  14 
13.  52596  Gabrijela Petek  Materials science and technology  Researcher  2019 - 2021 
14.  51482  Andrej Petrič    Technical associate  2019 - 2022 
15.  06527  Branko Petrič  Electric devices  Researcher  2019 - 2022  23 
16.  34451  PhD Nina Recek  Biotechnology  Researcher  2019 - 2022  85 
17.  50412  Stanislav Remškar    Technical associate  2019 - 2022 
18.  07814  PhD Karin Stana Kleinschek  Textile and leather  Researcher  2019 - 2022  1,117 
19.  39921  Uroš Stele    Technical associate  2019 - 2022 
20.  20048  PhD Alenka Vesel  Electronic components and technologies  Researcher  2019 - 2022  695 
21.  50415  Peter Zupančič    Technical associate  2019 - 2022 
Organisations (4)
no. Code Research organisation City Registration number No. of publicationsNo. of publications
1.  0796  University of Maribor, Faculty of Electrical Engineering and Computer Science  Maribor  5089638003  27,689 
2.  0106  Jožef Stefan Institute  Ljubljana  5051606000  91,408 
3.  2341  INDUKTIO L.t.d.  Ljubljana  1840711  23 
4.  3253  ELVEZ, proizvodnja kabelske konfekcije in predelava plastičnih mas, d.o.o. (Slovene)  Višnja Gora  5569613  57 
Abstract
Initial stages of polymer functionalization with different functional groups will be determined experimentally. Results will represent a breakthrough in understanding the complex mechanism involved at interaction of reactive gaseous species with polymer surfaces. For the first time, the polymer surfaces will be exposed to variable fluences or reactive plasma radicals and the evolution of various functional groups with increasing fluences will be determined without breaking vacuum conditions using our high-resolution XPS instrument. The fluences will be measured precisely using specially adopted laser-driven catalytic probes. The evolution of functional groups versus fluences will be determined separately for oxygen and fluorine atoms as well as NHx radicals. The sources of these species will be microwave-driven discharges at variable powers. Three sources will be mounted onto the treatment chamber employing oxygen, ammonia and tetrafluoromethane as working gases. Gases will be introduced into the discharge chambers through flow controllers and will dissociate to radicals upon plasma conditions. The radicals will then enter the processing chamber which will be pumped continuously to assure for a rapid transfer of radicals from the plasma region to the samples with reasonable loss due to recombination or association to parent molecules. The entire experimental setup will be UHV compatible so the concentration of gaseous impurities will be marginal. The project will employ experts in polymer and plasma science as well as experts in construction of custom-designed plasma systems, high-frequency plasma sources and surface characterization. The results will be published in reputable topical journals and we shall also write a monography on initial stages of polymer functionalization. Such a monography is currently not available since no group worldwide has performed experiments foreseen within this project. The dissemination will be through scientific meetings and media.
Significance for science
As stressed in the project description, our results will represent the first systematic experimental work worldwide on initial stages of functionalization of selected polymers upon exposure to neutral atoms or other radicals as revealed in the project description. The fluences of radicals will be determined rather precisely thus the results will be reliable. The results will be published in top-ranking specialized journals and summarized in a monography which will be not only a compulsory reading for a vast community of researchers working on modification of polymer surfaces, but will represent a unique source for theoreticians as well. As explained in the project description the theoreticians have launched few hypotheses about initial stages of polymer functionalization but the results obtained by their theory cannot be compared to the experimental ones since the appropriate experimental data do not exist. Our results will therefore provide theoreticians with precious experimental data and will enable theoreticians to upgrade their codes. This will be our important contribution to development of this scientific niche.
Significance for the country
As stressed in the project description, our results will represent the first systematic experimental work worldwide on initial stages of functionalization of selected polymers upon exposure to neutral atoms or other radicals as revealed in the project description. The fluences of radicals will be determined rather precisely thus the results will be reliable. The results will be published in top-ranking specialized journals and summarized in a monography which will be not only a compulsory reading for a vast community of researchers working on modification of polymer surfaces, but will represent a unique source for theoreticians as well. As explained in the project description the theoreticians have launched few hypotheses about initial stages of polymer functionalization but the results obtained by their theory cannot be compared to the experimental ones since the appropriate experimental data do not exist. Our results will therefore provide theoreticians with precious experimental data and will enable theoreticians to upgrade their codes. This will be our important contribution to development of this scientific niche.
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