Thermal behavior, morphology, and some melt properties of blends of polycarbonate with poly(styrene-co-acrylonitrile) and poly(acrylonitrile-butradiene-styrene)

Woo Nyon Kim, C. M. Burns

Research output: Contribution to journalArticle

77 Citations (Scopus)

Abstract

Blends of bisphenol-A polycarbonate (PC) with poly(styrene-co-acrylonitrile) (SAN) and poly(acrylonitrile-butadiene-styrene) (ABS) prepared by screw extrusion and solution-casting were investigated by differential scanning calorimetry and scanning electron microscopy. From the measured glass-transition temperatures (Tg) and specific heat increments (ΔCp) at the Tg. SAN appears to dissolve more in the PC-rich phase than does PC in the SAN-rich phase. From the Tg behavior and the electron microscopy study, it is suggested that the compatibility increases more in the SAN-rich compositions than in the PC-rich compositions of the blends. In the study of extrudate swell of the PC/SAN blends and the PC/ABS blends, the maximum level of extrudate swell is reached at 0.5 weight fraction of PC for both blend systems. The Flory-Huggins polymer-polymer interaction parameter between PC and SAN was calculated and found to be 0.034±0.004. A similar value for PC and SAN was found with the PC/ABS blends.

Original languageEnglish
Pages (from-to)1115-1125
Number of pages11
JournalPolymer Engineering and Science
Volume28
Issue number17
Publication statusPublished - 1988 Sep 1
Externally publishedYes

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polycarbonate
Acrylonitrile
Styrene
Polycarbonates
Butadiene
Polymers
polyacrylonitrile
Hot Temperature

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Materials Chemistry
  • Polymers and Plastics

Cite this

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abstract = "Blends of bisphenol-A polycarbonate (PC) with poly(styrene-co-acrylonitrile) (SAN) and poly(acrylonitrile-butadiene-styrene) (ABS) prepared by screw extrusion and solution-casting were investigated by differential scanning calorimetry and scanning electron microscopy. From the measured glass-transition temperatures (Tg) and specific heat increments (ΔCp) at the Tg. SAN appears to dissolve more in the PC-rich phase than does PC in the SAN-rich phase. From the Tg behavior and the electron microscopy study, it is suggested that the compatibility increases more in the SAN-rich compositions than in the PC-rich compositions of the blends. In the study of extrudate swell of the PC/SAN blends and the PC/ABS blends, the maximum level of extrudate swell is reached at 0.5 weight fraction of PC for both blend systems. The Flory-Huggins polymer-polymer interaction parameter between PC and SAN was calculated and found to be 0.034±0.004. A similar value for PC and SAN was found with the PC/ABS blends.",
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AU - Burns, C. M.

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N2 - Blends of bisphenol-A polycarbonate (PC) with poly(styrene-co-acrylonitrile) (SAN) and poly(acrylonitrile-butadiene-styrene) (ABS) prepared by screw extrusion and solution-casting were investigated by differential scanning calorimetry and scanning electron microscopy. From the measured glass-transition temperatures (Tg) and specific heat increments (ΔCp) at the Tg. SAN appears to dissolve more in the PC-rich phase than does PC in the SAN-rich phase. From the Tg behavior and the electron microscopy study, it is suggested that the compatibility increases more in the SAN-rich compositions than in the PC-rich compositions of the blends. In the study of extrudate swell of the PC/SAN blends and the PC/ABS blends, the maximum level of extrudate swell is reached at 0.5 weight fraction of PC for both blend systems. The Flory-Huggins polymer-polymer interaction parameter between PC and SAN was calculated and found to be 0.034±0.004. A similar value for PC and SAN was found with the PC/ABS blends.

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