A Convenient Room Temperature Polycondensation Toward Hyperbranched AB(2)-Type All-Aromatic Polyesters with Phenol Terminal Groups
Research output: Contribution to journal › Research article › Contributed › peer-review
Contributors
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
Original language | English |
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Pages (from-to) | 5158-5168 |
Number of pages | 11 |
Journal | Journal of Polymer Science, Part A: Polymer Chemistry |
Volume | 47 |
Issue number | 19 |
Publication status | Published - 1 Oct 2009 |
Peer-reviewed | Yes |
Externally published | Yes |
External IDs
Scopus | 69949122031 |
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ORCID | /0000-0002-4531-691X/work/148607786 |
Keywords
Keywords
- Chromatography, Hyperbranched, Polycondensation, Polyesters