著者

田川 美恵子

出版者

The Society of Fiber Science and Technology, Japan

雑誌

繊維学会誌 (ISSN:00379875)

巻号頁・発行日

vol.35, no.8, pp.T333-T338, 1979-08-10 (Released:2008-11-28)

参考文献数

10

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Adsorption onto cotton and polyester fibers of two kinds of polyvinyl alcohols (PVA) having different amount of residual acetyl group is investigated. PVA-iodine complex method is applied for the determination of PVA concentration. The shapes of adsorption isotherms for these two PVA's at 40°C are clearly different. The amount of adsorbed PVA-I, having no residual acetyl group, is saturated once at lower concentration level and then increases linearly with the concentration in solution. While, that of PVA-II, having 20mol% of residual acetyl group, is saturated at certain low concentration without further increase. The adsorption behavior depends on the amount of residual acetyl group of PVA but not on the kind of fibers.Equilibrium adsorption constant k and the amount of saturated adsorption x∞ calculated from these adsorption data, as well as specific surface area obtained from N2-adsorption data in B. E. T. method, were discussed to elucidate the polymer adsorption mechanism.