Segmented copolymers of uniform tetra-amide units and poly(phenylene oxide): 1. Synthesis and thermal-mechanical properties

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Krijgsman, J. and Feijen, J. and Gaymans, R.J. (2004) Segmented copolymers of uniform tetra-amide units and poly(phenylene oxide): 1. Synthesis and thermal-mechanical properties. Polymer, 45 (14). pp. 4677-4684. ISSN 0032-3861

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Abstract:Copolymers of telechelic poly(2,6-dimethyl-1,4-phenylene ether) segments with terephthalic methyl ester endgroups (PPE-2T), 13 wt% crystallisable tetra-amide segments of uniform length (two-and-a-half repeating unit of nylon-6,T) and dodecanediol (C12) as an extender were made via a polycondensation reaction in the melt. The maximum reaction temperature was 280 °C. The PPE-2T/C12/T6T6T previous termcopolymersnext term are semi-crystalline materials with a Tg around 170 °C, a melting temperature of 264–270 °C and a Tg/Tm ratio of above 0.8. The modulus is high up to the Tg, which is not achievable in a blend of PPE and polyamide. The most probable morphology is that of long crystalline nano-ribbons in the amorphous matrix. The materials are slightly transparent and have good solvent resistance, low water absorption and good processability.
Item Type:Article
Copyright:Elsevier Science
Faculty:
Science and Technology (TNW)
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Link to this item:http://purl.utwente.nl/publications/71195
Official URL:http://dx.doi.org/10.1016/j.polymer.2004.04.038
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