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Dynamic Mechanical Properties of Poly(2, 6-Dimethyl-1,4-Phenylene Ether)-Polystyrene Blends
Polymer Engineering and Science (1970)
  • William MacKnight, University of Massachusetts Amherst
  • J. Stoelting
  • F. E. Karasz
Blends of poly(2,6-dimethyl-l,4-phenylene ether) (FPO) and a tactic polystyrene (PS) have been prepared by mechan­ically mixing powders of the two polymers and subjecti􀀇ng the mixtures to three different thermal treatments. Three different 
compositions were studied by the dynamic m􀀋echaniac􀀌l and DSC techniques. The weight fractions of FPO m the mixtures 
were 0.25, 0.50 and 0.75. The dynamic mechanical measure­
ments indicate that partial mixing took place but that two 
distinct phases, one rich in PS and the other in FPO, exis􀀕 􀀖n all the mixtures studied. Each phase exhibits a charactenstlc 
relaxation peak associated with the glass transition of that 
phase. DSC measurements, on the other 􀀛a􀀝d, reveal on])'. a single glass transition apparently charactensbc of the PS nch 
phase in each case. The results indicate that a given type of experiment will indicate compatibility or incompatibility depending upon the size of the molecular process it represents.
  • porperties,
  • polystyrene,
  • blends
Publication Date
Citation Information
William MacKnight, J. Stoelting and F. E. Karasz. "Dynamic Mechanical Properties of Poly(2, 6-Dimethyl-1,4-Phenylene Ether)-Polystyrene Blends" Polymer Engineering and Science Vol. 10 (1970) p. 133 - 138
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