New phytoactive polymers prepared by polycondensation

Autor:	Nevena Manolova, Nicolas Spassky, Milena Ignatova, Iliya Rashkov, Maurice Sepulchre
Rok vydání:	1997
Předmět:	chemistry.chemical_classification Condensation polymer Polymers and Plastics Chemistry Organic Chemistry Chemical modification Polymer Tartrate Condensed Matter Physics Polyelectrolyte chemistry.chemical_compound Hydrolysis Polymer chemistry Materials Chemistry Organic chemistry
Zdroj:	Macromolecular Symposia. 122:281-286
ISSN:	1022-1360
DOI:	10.1002/masy.19971220144
Popis:	Some new poly(ether-ester)s (PEEs) and poly(ether-amide)s (PEAs) with polyether sequences linked by tartrate units have been synthesized. Derivatives bearing residues from the synthetic plant-growth regulator 1-naphthylacetic acid (NAA) as pendent groups and end-groups have been prepared by esterification of PEEs and PEAs with NAA. Polymers bearing residues from pyridine-2,6-dicarboxylic acid (a herbicide) in the main chain have been prepared. The hydrolysis has been found to depend on the structure of the polymer carrier, on pH of the medium and on the ability of the polymers to form complexes with polyacids. The phytosanitary activity of the new polymers has been related to the particular features of their hydrolysis behaviour.
Databáze:	OpenAIRE
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