Synthesis and Characterization of Copoly(Ether Sulfone)s with Different Percentages of Diphenolic Acid Units
| Autor: | Chiara Di Mauro, Daniela Zampino, Maurizio S. Montaudo, Andrea Scamporrino, Emanuele Francesco Mirabella, Concetto Puglisi, Sandro Dattilo, Giuseppe Recca, Angela Spina, Filippo Samperi, Giulia Ognibene, Gianluca Cicala |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
chemistry.chemical_classification
Polymers and Plastics synthesis Diphenolic acid Ether General Chemistry Polymer DMA Mole fraction Article Polyelectrolyte NMR Sulfone lcsh:QD241-441 Contact angle poly(ether sulfone)s polyelectrolytes chemistry.chemical_compound lcsh:Organic chemistry chemistry Polymer chemistry Copolymer random copolymers poly (ether sulfone)s |
| Zdroj: | Polymers (Basel) (2020). doi:10.3390/polym12081817 info:cnr-pdr/source/autori:Andrea A. Scamporrino 1,*, Concetto Puglisi 1, Angela Spina 1, Maurizio Montaudo 1, Daniela C. Zampino 1, Gianluca Cicala 2, Giulia Ognibene 2, Chiara Di Mauro 2, Sandro Dattilo 1, Emanuele F. Mirabella 1, Giuseppe Recca 1 and Filippo Samperi 1/titolo:Synthesis and Characterization of Copoly(Ether Sulfone)s with Different Percentages of Diphenolic Acid Units/doi:10.3390%2Fpolym12081817/rivista:Polymers (Basel)/anno:2020/pagina_da:/pagina_a:/intervallo_pagine:/volume Polymers Volume 12 Issue 8 Polymers, Vol 12, Iss 1817, p 1817 (2020) |
| DOI: | 10.3390/polym12081817 |
| Popis: | New functionalized Poly(ether sulfone)s having different molar ratio (10, 20, 30, 50, 70, 100 mol%) of 4,4-bis phenoxy pentanoic acid unit (diphenolic acid DPA) units were synthesized and characterized by (1H and 13C)-NMR, MALDI-TOF MS, FT-IR, DSC and DMA analyses. The microstructural analysis of the copolymers, obtained by 13C-NMR using an appropriate statistical model, shows a random distribution of copolymer sequences, as expected. The presence of different amount of DPA units along the polymer chains affects the chemical and physical properties of the copolymers. The Tg and the contact angle values decrease as the molar fraction of DPA units increases, whereas the hydrophilicity increases. NMR and MALDI-TOF MS analyses show that all polymer chains are almost terminated with hydroxyl and chlorine as end groups. The presence of cyclic oligomers was also observed by MALDI-TOF MS analysis. |
| Databáze: | OpenAIRE |
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