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

J. Krijgsman, Jan Feijen, R.J. Gaymans

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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.
Original languageUndefined
Pages (from-to)4677-4684
JournalPolymer
Volume45
Issue number14
DOIs
Publication statusPublished - 2004

Keywords

  • IR-71195
  • METIS-223530

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