62468 1993 eng 791 798 3 194 article Wiley 0 -- -- -- Number-average molecular weights, M,, up to 25 OOO, and inherent viscosities, vinh, up to 2,88 dL/g, were found for the soluble members of an alkoxy-substituted copolyester series (HTO5-X series). A liquid-crystalline (high-temperature) phase was distinguished by IR and wide-angle Xray scattering on molten and quenched samples in form of a nematic sanidic phase. In this phase no relationship exists between the orientation of the aromatic polyester backbone and that of the laterally attached alkoxy groups. Further, it was proven by IR that only the polyester backbone can be aligned by shear stress. If the applied shear stress is very strong, the orientation of the stiff backbone becomes sensitive to disturbances caused by mechanical forces. Makromolekulare Chemie 10.1002/macp.1993.021940304 publish false true Thomas Schleeh Oliver Rötting Dirk Bettge Georg Hinrichsen Gerhard Koßmehl eng uncontrolled Liquid-crystalline polymer Ingenieurwissenschaften und zugeordnete Tätigkeiten Verlagsliteratur Datei im Netzwerk der BAM verfügbar ("Closed Access")