Stable, High-Molecular-Weight Poly(phthalaldehyde)
| Autor: | Jared M. Schwartz, Anthony Engler, Alexandra Sutlief, Jihyun Lee, Oluwadamilola Phillips, Paul A. Kohl |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
chemistry.chemical_classification
Polymers and Plastics Chemistry Organic Chemistry Cationic polymerization 02 engineering and technology Polymer 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Ceiling temperature chemistry.chemical_compound Monomer Polymerization Yield (chemistry) Polymer chemistry Materials Chemistry Lewis acids and bases 0210 nano-technology Phthalaldehyde |
| Zdroj: | Journal of Polymer Science Part A: Polymer Chemistry. 55:1166-1172 |
| ISSN: | 0887-624X |
| DOI: | 10.1002/pola.28473 |
| Popis: | Low ceiling temperature, thermodynamically unstable polymers have been troublesome to synthesize and keep stable during storage. In this study, stable poly(phthalaldehyde) has been synthesized with BF3-OEt2 catalyst. The role of BF3 in the polymerization is described. The interaction of BF3 with the monomer is described and used to maximize the yield and molecular weight of poly(phthalaldehyde). Various Lewis acids were used to investigate the effect of catalyst acidity on poly(phthalaldehyde) chain growth. In situ nuclear magnetic resonance was used to identify possible interactions formed between BF3 and phthalaldehyde monomer and polymer. The molecular weight of the polymer tracks with polymerization yield. The ambient temperature stability of poly(phthalaldehyde) was investigated and the storage life of the polymer has been improved. © 2016 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2016, 55, 1166–1172 |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Plný text