Characterization of the segmental mobility of liquid-crystalline side-chain polyesters by Fourier-transform infrared spectroscopy.
Fourier-Transform IR (FTIR) polarization spectroscopy has been applied to study segmental orientation of a new class of liq.-cryst. side-chain (LCSC) polyesters as a function of laser irradn. From the exptl. results qual. structural models and quant. results in terms of an order parameter were derived. Time-dependent investigations yielded a detailed insight into the orientational response of the mesogens, and temp.-dependent studies were applied to monitor the erasure of the induced orientation.
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