SynopsisThe infrared spectra of the films of syndiotactic-rich poly(viny1 alcohol) (s-PVA) prepared by the casting, frame, and bubble methods were obtained. The band at 705 cm-' decreased with the increased inclination of the film plane to the direction of the irradiation of infrared rays and was related to the orientation of the molecules in the adsorbed phases of both sides of film.
Ultra-thin films of syndiotactic-rich poly-vinyl alcohol (s-PVA) with several proteins and polysaccharides were prepared by the bubble and frame methods using a mixed dilute aqueous solution (1.5 g/dL). The mixed amount of fl-cydodextrin (fl-CD) was the largest among these proteins and polysaccharides giving a weight ratio (fl-CD/s-PVA) of 1. The ratios of silk fibroin(SF), lysozyme, pepsin, and pectin to s-PVA were 0.58, 0.40, 0.35, and 0.35, respectively. For the fl-CD/s-PVA and SF/s-PVA blend thin films, the phase separation was observed.
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