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English
Published
: 2022-09-18
Thermal properties of ester-amide copolymers with cyclic groups in oligoamide soft segment
Abstract
Thermoplastic poly(ester-block-amide) elastomers (PEAs) comprising hard blocks of oligoester [oligo(butylene terephthalate), PBT] and oligoamide soft segments [reaction product of 1,4-cyclohexanediamine (CHDA) with dimerized fatty acid (DFA)] were synthesized and analyzed by differential scanning calorimetry (DSC). The influence of segments content (w(s):w(h)) and oligoamide block length (DPs) on the glass transition temperature (T-g), melting temperature (T) and crystallization temperature (T-c) were examined. Increasing the soft segment molecular weight by reacting DFA with diamine resulted in a decreasing ability of forming a homogenous mixture with the amorphous PBT phase, thus, affecting elastomer properties. PEA containing cyclic group (from CHDA) in oligoamide soft segment exhibits higher temperature transitions contrary to PEA based on 1,6-hexamethylenediamine.
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Zasady cytowania
Kozłowska, A. (2022). Thermal properties of ester-amide copolymers with cyclic groups in oligoamide soft segment. Polimery, 47(10), 730-733. Retrieved from https://ichp.vot.pl/index.php/p/article/view/2024
