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Solvent loss from polymer films

Solvent loss from films of polymer solutions I solvent retention... [Pg.39]

A polymer derived from phenyltrlchlorosilane ( ), while infusible, is soluble in solvents such as tetrahydrofuran and benzene from which films can be east (20.21). TG thermograms in air show no weight loss to 525 C but an upper limit for useful application is probably near 300 C (21). [Pg.36]

Hansen (57) pointed out that evaporation of a solvent from a polymer solution faced two barriers when cast on an impermeable substrate resistance to solvent loss at the air-liquid interface and diffusion from within the film to the air interface. Evaporation of neat solvents as well as moderately dilute solutions is limited by resistance at the air interface, but as solvent concentration becomes low (5-10-15%), the rate-controlling step is diffusion through the film. Hansen pointed out that at the point when solvent loss changes to a diffusion-limited process, the concentration of solvent is sufficient to reduce the glass transition temperature, Tg, of the polymer to the film temperature. [Pg.679]

See other pages where Solvent loss from polymer films is mentioned: [Pg.39]    [Pg.148]    [Pg.128]    [Pg.275]    [Pg.334]    [Pg.478]    [Pg.146]    [Pg.195]    [Pg.384]    [Pg.108]    [Pg.271]    [Pg.412]    [Pg.318]    [Pg.324]    [Pg.284]    [Pg.403]    [Pg.159]    [Pg.301]    [Pg.170]    [Pg.128]    [Pg.122]    [Pg.296]    [Pg.266]    [Pg.158]    [Pg.12]    [Pg.29]    [Pg.148]    [Pg.25]    [Pg.137]    [Pg.412]    [Pg.36]    [Pg.102]    [Pg.38]    [Pg.581]    [Pg.72]    [Pg.637]    [Pg.432]    [Pg.105]    [Pg.505]    [Pg.172]    [Pg.173]    [Pg.52]    [Pg.307]    [Pg.234]    [Pg.90]    [Pg.67]   
See also in sourсe #XX -- [ Pg.38 , Pg.39 ]



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Solvent loss

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