ISSN:
0025-116X
Keywords:
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Physics
Notes:
The synthesis of poly(bisphenol-A carbonate)-graft-polystyrene with grafts of definite, predictable, nearly identical length was achieved using the macromonomer technique, i.e., copolycondensation of polystyrene macromonomers, carrying aromatic hydroxyl function, with bisphenol-A and triphosgene in pyridine/methylene chloride solution. The incorporation of the macromonomer into the polycarbonate backbone was examined both qualitatively and quantitatively. The copolycarbonate show - in the contrast to polystyrene/polycarbonate blends of comparable molecular weights and composition - only one glass transition temperature, which proved to be dependent on the polystyrene content, following the Fox equation. The title compounds exhibit reduced stress-induced birefringence compared to polycarbonate.
Additional Material:
7 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/macp.1993.021940610
