A Convenient Room Temperature Polycondensation Toward Hyperbranched AB(2)-Type All-Aromatic Polyesters with Phenol Terminal Groups
Publikation: Beitrag in Fachzeitschrift › Forschungsartikel › Beigetragen › Begutachtung
Beitragende
Abstract
As a convenient alternative to the classical melt polycondensation the one-pot solution polycondensation of suitable AB(2) monomers under mild conditions has been successfully adapted to hyperbranched all-aromatic polyester with phenol terminal groups. The polymerization was performed in solution at room temperature directly using commercially available 3,5-dihydroxybenzoic acid as monomer and 4(dimethylamino) pyridinium 4-tosylate as catalyst to suppress the formation of N-acylurea. Different carbodiimides as coupling agents were investigated to find the optimal esterification conditions. The polymers have been characterized extensively and were compared with their well-known analogs synthesized in melt. The characterization was carried out by NMR spectroscopy, size exclusion chromatography, and asymmetric flow-field flow fractionation as an alternative separation technique for multifunctional polymers. (C) 2009 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 47:5158-5168, 2009
Details
Originalsprache | Englisch |
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Seiten (von - bis) | 5158-5168 |
Seitenumfang | 11 |
Fachzeitschrift | Journal of Polymer Science, Part A: Polymer Chemistry |
Jahrgang | 47 |
Ausgabenummer | 19 |
Publikationsstatus | Veröffentlicht - 1 Okt. 2009 |
Peer-Review-Status | Ja |
Extern publiziert | Ja |
Externe IDs
Scopus | 69949122031 |
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ORCID | /0000-0002-4531-691X/work/148607786 |
Schlagworte
Schlagwörter
- Chromatography, Hyperbranched, Polycondensation, Polyesters