Dielectric studies of tetraaryl and triaryl polycarbonates and comparisons with bisphenol A-polycarbonate (pages 289–304)
J. J. Fontanella, D. A. Boyles, T. S. Filipova, S. Awwad, C. A. Edmondson, J. T. Bendler, M. C. Wintersgill, J. F. Lomax and M. J. Schroeder
Article first published online: 6 DEC 2011 | DOI: 10.1002/polb.23010
High strength and toughness, broad temperature resistance, and optical-quality transparency make bisphenol A-polycarbonate (BPA-PC) useful in a wide range of commercial industries including capacitor applications. Dielectric relaxation is used to study molecular motions in BPA-PC and then to compare these motions with those found in two new high-temperature polycarbonates with small cross-sectional areas, small packing lengths, and low entanglement weights. The results shed light on discrepancies that exist in the literature for BPA-PC.