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Biobased furandicarboxylic acids ( FDCAs ) : e ff ects of isomeric substitution on polyester synthesis and properties †
| Content Provider | Semantic Scholar |
|---|---|
| Author | Thiyagarajan, Shanmugam Vogelzang, Willem Knoop, Rutger J. I. Frissen, Augustinus E. Haverena, Jacco Van Es, Daan S. Van |
| Copyright Year | 2014 |
| Abstract | In this study we present the application of different isomers of furandicarboxylic acid, or FDCA, obtained from agro-residues, in polyester synthesis. New polyesters based on 2,4-FDCA and 3,4-FDCA isomers with (linear) diols were thoroughly characterised and compared with their as-synthesised 2,5-FDCA analogues. All polymers were obtained by melt polycondensation of linear diols with FDCA dimethyl esters and exhibit molecular weights in the range Mw = 34 000–65 000 and polydispersities close to 2.0. Thermogravimetric analysis (TGA) of the new polyesters shows that they have comparable or even higher thermal stability compared to the 2,5-FDCA polyesters. Interestingly, the glass-transition temperatures (Tg) of 2,4-FDCA derived polyesters are similar to those of the 2,5-FDCA isomers. Both differential scanning calorimetry (DSC) and wide-angle X-ray diffraction (WAXD) analyses showed that 2,4-PEF is amorphous, while 2,5-PEF and 3,4-PEF are semi-crystalline materials. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://library.wur.nl/WebQuery/wurpubs/fulltext/347509 |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | Amino Acids, Branched-Chain Calorimetry Calorimetry, Differential Scanning Dimethyl Adipimidate Esters Isomerism Linear IgA Bullous Dermatosis Molecular Weight Polyesters Semiconductor industry TBX1 wt Allele Thioctic Acid Truevision TGA X-Ray Computed Tomography |
| Content Type | Text |
| Resource Type | Article |