Preparation and properties of ionomers of bisphenol A polycarbonate
Conference
·
OSTI ID:602874
- Dow Chemical Co., Freeport, TX (United States)
The preparation and properties of bisphenol A polycarbonate with a small percentage (0.5-10 mol%) of sulfonate groups attached randomly along the backbone are described. This small modification has a dramatic influence on the polymer properties, particularly the rheology. The melt viscosity at low shear rates is comparable to a branched polycarbonate, and the ionomers have improved flame and solvent resistance. Water absorption is increased, but the increase is not large. These ionomers can be prepared inexpensively using a reactive blending process starting with commercial bisphenol A polycarbonate and a diphenyl ester of sulfoisophthalic acid, a monomer used for PET fiber.
- OSTI ID:
- 602874
- Report Number(s):
- CONF-961108--
- Country of Publication:
- United States
- Language:
- English
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