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Journal articles
Poly(amide ester)s from 2,6-pyridinedicarboxylic acid and ethanolamine derivatives: identification of macrocycles by matrix-assisted laser - desorption/ionization mass spectrometry
Abstract : The influence of the polycondensation pathway and aminoalcohol structure was investigated in the synthesis of poly(amide ester)s by polytransesterification from ethyl pyridine-2,6-dicarboxylate and 2-amino-2-methylpropan-1-ol or the corresponding bis(amide alcohol), or by polycondensation from the diacid dichloride. Both linear and cyclic structures were identified by steric exclusion chromatography (SEC) and matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOFMS). Transesterification led to cyclic oligomers (macrocycles) with 2-14 pyridine moities in the ring whereas polycondensation from the diacid dichloride gave low molecular weight polymers (Mn = 1800) and macrocycles.
http://hal.in2p3.fr/in2p3-00019918
Contributor : Suzanne Robert Connect in order to contact the contributor
Submitted on : Tuesday, October 15, 2002 - 11:10:51 AM
Last modification on : Thursday, November 19, 2020 - 2:20:21 PM
Contributor : Suzanne Robert Connect in order to contact the contributor
Submitted on : Tuesday, October 15, 2002 - 11:10:51 AM
Last modification on : Thursday, November 19, 2020 - 2:20:21 PM