PREPARATION, PROPERTIES AND COMPLEX-FORMATION ABILITY OF POLY(ETHER-ESTER)S OF POLY(ETHYLENE GLYCOL)S AND 2,6-PYRIDINEDICARBOXYLIC ACID

Authors
IGNATOVA M MANOLOVA N RASHKOV I SEPULCHRE M SPASSKY N
Citation
M. Ignatova et al., PREPARATION, PROPERTIES AND COMPLEX-FORMATION ABILITY OF POLY(ETHER-ESTER)S OF POLY(ETHYLENE GLYCOL)S AND 2,6-PYRIDINEDICARBOXYLIC ACID, Macromolecular chemistry and physics, 196(8), 1995, pp. 2695-2708
Citations number
29
Categorie Soggetti
Polymer Sciences
Journal title
Macromolecular chemistry and physics → ACNP
ISSN journal
10221352
Volume
196
Issue
8
Year of publication
1995
Pages
2695 - 2708
Database
ISI
SICI code
1022-1352(1995)196:8<2695:PPACAO>2.0.ZU;2-L
Abstract
Poly(ether-ester)s of poly(ethylene glycol)s (PEGs) and 2,6-pyridinedi carboxylic acid (PDA) were synthesized by polycondensation of PDA and PEG in the presence of dicyclohexylcarbodiimide and dimethylaminopyrid ine and by polycondensation of acyl chloride of PDA and PEG in the pre sence of triethylamine at 45 degrees C. The polymers were characterize d by CPC, UV, iR and H-1 and C-13 NMR spectroscopy. The complex format ion between poly(acrylic acid) (PAA) or poly(methacrylic acid) (PMA) a nd the poly(ether-ester)s was studied. It occurs below the critical po lyether chain length necessary for complex formation because of the st abilizing effect of the PDA hydrophobic residues.