Preparation, characterisation and properties of poly(ether-amide)s bearing hydroxyl side groups and of their derivatives with the synthetic auxin 1-naphthylacetic acid
| Autor: | Nevena Manolova, Iliya Rashkov, Nicolas Spassky, Maurice Sepulchre, Milena Ignatova |
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| Rok vydání: | 1998 |
| Předmět: |
Condensation polymer
Aqueous solution Polymers and Plastics Organic Chemistry food and beverages Chemical modification Ether Condensed Matter Physics Cleavage (embryo) Polyelectrolyte nervous system diseases Hydrolysis chemistry.chemical_compound nervous system chemistry immune system diseases Amide mental disorders Polymer chemistry Materials Chemistry Physical and Theoretical Chemistry |
| Zdroj: | Macromolecular Chemistry and Physics. 199:87-96 |
| ISSN: | 1521-3935 1022-1352 |
| DOI: | 10.1002/(sici)1521-3935(19980101)199:1<87::aid-macp87>3.0.co;2-f |
| Popis: | New water-soluble poly(ether-amide)s (PEA)s were synthesised by polycondensation of diethyl L-tartrate and commercial polyethers having isopropylamino end-groups (Jeffamine ED-600 or Jeffamine ED-900). PEAs were derivatised with the synthetic auxin 1-naphthylacetic acid (NAA). It was shown that PEA and their esters with NAA (PEA-NAA) form interpolymer complexes with polyacids and that the complex formation is favoured by the hydrophobic NAA-residues in PEA-NAA. The hydrolysis of PEA-NAA was found to proceed mainly by cleavage of the ester bonds linking the pendant NAA-residues. The poly(ether-amide) main chain was found to be more stable than the similar poly(ether-ester) chain of poly[oxytartaroyloxypoly(oxyethylene)]. |
| Databáze: | OpenAIRE |
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