Rheo-optical Fourier transform near-infrared spectroscopy of polydimethylsiloxane/polycarbonate block copolymers

摘要

A series of polydimethylsiloxane (PDMS)/polycarbonate (PC) block copolymers with varying compositions were investigated by simultaneous mechanical and Fourier transform near-infrared (FTNIR) spectroscopic (rheo-optical) measurements to study segmental orientation during elongation-to-break and cyclic elongation-recovery procedures. Depending on the composition and the block lengths of the copolymers, different orientational and recovery phenomena were observed for the hard (PC) and soft (PDMS) segments. (C) 1998 John Wiley & Sons, Inc. J Appl Polym Sci 70: 1349-1357, 1998. [References: 12]