Zobrazeno 1 - 10
of 64
pro vyhledávání: '"Stelian Popa"'
Autor:
Marius-Stelian Popa, Celina Maria Damian, Brîndușa Bãlãnucã, Denis Mihaela Panaitescu, Augusta Raluca Gabor, Cristian Andi Nicolae, Valentin Rădiţoiu, Monica Florentina Raduly, Adriana Nicoleta Frone
Publikováno v:
Chemistry Proceedings, Vol 7, Iss 1, p 17 (2022)
With the continuous depletion of fossil oils and resulting environmental concerns, there is an urgent need to develop polymeric materials from renewable resources [1,2]. Epoxy resins are thermoset polymers that are recognized for their tunable proper
Externí odkaz:
https://doaj.org/article/1bc80adfcb854d7d9e26875f80617856
Autor:
Marius Stelian Popa, Elena Ruxandra Radu, Denis Mihaela Panaitescu, Augusta Raluca Gabor, Cristian Andi Nicolae, Monica Florentina Raduly, Adriana Nicoleta Frone
Publikováno v:
Chemistry Proceedings, Vol 7, Iss 1, p 14 (2022)
It is estimated that fossil fuel resources will dwindle by the end of 2050 if the current utilization rate persists [...]
Externí odkaz:
https://doaj.org/article/6fba9bbc6549484d96860bc89f928073
Autor:
Adriana Nicoleta Frone, Dora Dominica Baciu, Marius Stelian Popa, Cristian Andi Nicolae, Augusta Raluca Gabor, Monica Florentina Raduly, Radu Claudiu Fierascu, Denis Mihaela Panaitescu
Publikováno v:
Journal of Thermal Analysis and Calorimetry.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e36732f42821c0e32aca6de6af5d8466
https://doi.org/10.1007/s10973-023-12196-z
https://doi.org/10.1007/s10973-023-12196-z
Autor:
Marius Stelian Popa, Irina Lupescu, Cristian Andi Nicolae, Augusta Raluca Gabor, Adriana Nicoleta Frone, Denis Mihaela Panaitescu
Publikováno v:
Proceedings, Vol 57, Iss 1, p 38 (2020)
Polyhydroxybutyrate (PHB) is a biodegradable and biocompatible thermoplastic polymer with good properties. [...]
Externí odkaz:
https://doaj.org/article/30b36c688d0143b4aeeb6ef07de7c75d
Publikováno v:
International journal of biological macromolecules. 207
Poly (3-hydroxybutyrate) (PHB) is a valuable bio-based and biodegradable polymer that may substitute common polymers in packaging and biomedical applications provided that the production cost is reduced and some properties improved. Blending PHB with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c1791057086f1cada3cf00d4a6cca9ed
https://pubmed.ncbi.nlm.nih.gov/35257732
https://pubmed.ncbi.nlm.nih.gov/35257732
Autor:
Denis Mihaela Panaitescu, Marius Stelian Popa, Florin Ciuprina, Laura Enache, Adriana Nicoleta Frone, Cristian Andi Nicolae, Augusta Raluca Gabor, Roxana Trusca, Valentin Raditoiu, Bogdan Trica, Marius Ghiurea
Publikováno v:
Surfaces and Interfaces. 36:102546
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4188942585b4e58bb5802c36b4806eef
https://doi.org/10.1016/j.surfin.2022.102546
https://doi.org/10.1016/j.surfin.2022.102546
Autor:
Adriana Nicoleta Frone, Marius Stelian Popa, Cătălina Diana Uşurelu, Denis Mihaela Panaitescu, Augusta Raluca Gabor, Cristian Andi Nicolae, Monica Florentina Raduly, Anamaria Zaharia, Elvira Alexandrescu
Publikováno v:
Polymers; Volume 14; Issue 19; Pages: 3998
A series of poly(butylene sebacate) (PBSe) aliphatic polyesters were successfully synthesized by the melt polycondensation of sebacic acid (Se) and 1,4-butanediol (BDO), two monomers manufactured on an industrial scale from biomass. The number averag
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7bc29b77a19862f33f05dca8f8599935
https://doi.org/10.3390/polym14193998
https://doi.org/10.3390/polym14193998
Autor:
Dan Batalu, A. Ionescu, Takashi Nakamura, Petre Badica, Stelian Popa, Iuliana Pasuk, Gheorghe Aldica, Monica Enculescu
Publikováno v:
IEEE Transactions on Applied Superconductivity. 28:1-5
Four Ge-based organometallic (OM = C 6 H 10 Ge 2 O 7 ) polymers with similar chemical composition were used as additions for MgB 2 . MgB 2 (OM) 0.0014 dense samples with a relative density higher than 97% were obtained by ex situ spark plasma sinteri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fb03bde8a8a1eb15fe8095b5e4117ee1
https://doi.org/10.1109/tasc.2018.2808366
https://doi.org/10.1109/tasc.2018.2808366
Autor:
Petre Badica, Adrian M. Ionescu, Andrei Kuncser, Gheorghe Aldica, Stelian Popa, Iuliana Pasuk, M. Burdusel
Publikováno v:
Journal of Superconductivity and Novel Magnetism. 31:3423-3432
Short powder-in-tube tapes of MgB2 in the Fe sheath were fabricated by ex situ route from a commercial powder containing some free Mg and MgO impurity phases. The final heat treatment was performed by spark plasma sintering (SPS). Tapes were with ope
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1a6a774c7fbb0973035b7a518346e403
https://doi.org/10.1007/s10948-018-4616-9
https://doi.org/10.1007/s10948-018-4616-9
Autor:
Petre Badica, Adrian M. Ionescu, Monica Enculescu, Iuliana Pasuk, Gheorghe Aldica, Stelian Popa
Publikováno v:
Journal of Superconductivity and Novel Magnetism. 31:317-325
Samples of MgB2 with relative density above 95% were obtained by spark plasma sintering (SPS) at 1150 °C for a heating time of 100 °C/min and a maximum pressure of 95 MPa. Dwell time was of 1, 4, 7, 10, and 20 min. Samples show that dwell time has
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e212b414538fb21f20b7cab36439b0f7
https://doi.org/10.1007/s10948-017-4236-9
https://doi.org/10.1007/s10948-017-4236-9