Details

Autor(en) / Beteiligte

• Kárpáti, Levente
• Hamar, Gergely
• Vargha, Viktória

Titel

The sequenced structure of amino-alcohol-based random polys

Ist Teil von

• Journal of thermal analysis and calorimetry, 2019-04, Vol.136 (2), p.737

Ort / Verlag

Springer

Erscheinungsjahr

2019

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Random amino-alcohol-based poly(ester amide)s were synthesized using adipic acid and differently substituted amino-alcohols, namely 2-amino-ethan-1-ol, 1-amino-propan-2-ol, 2-amino-butan-1-ol and 2-amino-2-methyl-propan-1-ol. The effect of substitution on the yield and fine structure was investigated using residual functional group analysis, SEC and NMR. The functional group analysis and SEC proved the blocking effect of small substituents on direct polycondensation. The NMR data suggested a sequenced structure that could cause the formation of different crystalline phases in linear amino-alcohol-based poly(ester amide)s. Three different crystalline phases with different thermal stability and crystallization rate were observed with DSC and WAXS. The crystalline nature of the poly(ester amide)s proves the sequenced organization along the backbone.