Abstract
We clarified the relationship between the morphology of a poly(vinyl alcohol) (PVA)/liquid crystal (LC) composite film fabricated by an emulsification method and a hydrophile-lypophile balance (HLB) of an emulsifier. The LC domain size was affected by the surface tension of the PVA aqueous solution and of the LC. The surface tension of the PVA aqueous solution and the LC was varied by changing the HLB value. The electrooptical properties, such as threshold voltage and response time, were strongly dependent on the LC droplet size, in good qualitative agreement with results obtained using the equations of Doane et al. [Mol. Cryst. Liq. Cryst. 5 (1989) 1453].
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