Nonterminal liquid crystalline epoxy resins as structurally ordered low Tg thermosets with potential as smart polymers
Artykuł w czasopiśmie
MNiSW
100
Lista 2024
| Status: | |
| Autorzy: | Kisiel Maciej, Zając Weronika, Włodarska Magdalena, Byczyński Łukasz, Czachor-Jadacka Dominika, Mossety-Leszczak Beata, Pietruszewska Gabriela, Droździel-Jurkiewicz Magda, Bieniaś Jarosław |
| Dyscypliny: | |
| Aby zobaczyć szczegóły należy się zalogować. | |
| Rok wydania: | 2024 |
| Wersja dokumentu: | Drukowana | Elektroniczna |
| Język: | angielski |
| Numer czasopisma: | 5 |
| Wolumen/Tom: | 18 |
| Strony: | 516 - 532 |
| Web of Science® Times Cited: | 1 |
| Scopus® Cytowania: | 1 |
| Bazy: | Web of Science | Scopus |
| Efekt badań statutowych | NIE |
| Finansowanie: | ‘VIA CARPATIA Universities of Technology Network named after the President of the Republic of Poland Lech Kaczyński’ contract no. MEiN/2022/DPI/2578, action entitled ‘In the neighborhood – inter-university research internships and study visits’ |
| Materiał konferencyjny: | NIE |
| Publikacja OA: | TAK |
| Licencja: | |
| Sposób udostępnienia: | Witryna wydawcy |
| Wersja tekstu: | Ostateczna wersja opublikowana |
| Czas opublikowania: | W momencie opublikowania |
| Data opublikowania w OA: | 13 lutego 2024 |
| Abstrakty: | angielski |
| Novel nonterminal liquid crystalline epoxy resin has been synthesized, and its structure and nature have been de- termined via nuclear magnetic resonance (NMR) and polarized optical microscopy (POM). Then, it was cured with the use of 4,4′-diaminodiphenylmethane (4,4′-DDM). The curing process has been investigated via differential scanning calorimetry (DSC) and infrared spectroscopy (FTIR) methods. Polymerization has been conducted with (1.2 T) and without the presence of a strong magnetic field. The properties of the obtained polymers have been described using DSC, thermogravimetric analysis (TGA), scanning electron microscopy (SEM), dielectric spectroscopy (DS) and X-ray scattering studies (WAXS/SAXS). It has been proved that the magnetic field induces molecular ordering and increases the glass transition temperature (Tg) by over 20 °C. The obtained ordered polymers are thermally stable up to over 300 °C, undergo vitrification at slightly elevated temperature (37.5 °C), and their electrical conductivity rises significantly at the transition to an elastic state, which, among other possibilities, makes them a proper candidate for a smart, lightweight polymers with tuneable prop- erties by a subtle temperature rise and possibility of tailoring its structure by a magnetic field. |
