التفاصيل البيبلوغرافية
| العنوان: |
Synthesis and Characterization of Copoly(Ether Sulfone)s with Different Percentages of Diphenolic Acid Units |
| المؤلفون: |
Andrea A. Scamporrino, Concetto Puglisi, Angela Spina, Maurizio Montaudo, Daniela C. Zampino, Gianluca Cicala, Giulia Ognibene, Chiara Di Mauro, Sandro Dattilo, Emanuele F. Mirabella, Giuseppe Recca, Filippo Samperi |
| المصدر: |
Polymers; Volume 12; Issue 8; Pages: 1817 |
| بيانات النشر: |
Multidisciplinary Digital Publishing Institute |
| سنة النشر: |
2020 |
| المجموعة: |
MDPI Open Access Publishing |
| مصطلحات موضوعية: |
synthesis, random copolymers, poly (ether sulfone)s, diphenolic acid, polyelectrolytes, NMR, DMA |
| الوصف: |
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. |
| نوع الوثيقة: |
text |
| وصف الملف: |
application/pdf |
| اللغة: |
English |
| Relation: |
Polymer Chemistry; https://dx.doi.org/10.3390/polym12081817 |
| DOI: |
10.3390/polym12081817 |
| الاتاحة: |
https://doi.org/10.3390/polym12081817 |
| Rights: |
https://creativecommons.org/licenses/by/4.0/ |
| رقم الانضمام: |
edsbas.13C77CCC |
| قاعدة البيانات: |
BASE |