Permeability of poly-L-methionine membrane and its oxidized membrane to water vapor

Autor:	Tsutomu Nakagawa, Norihiko Minoura, Yukihiko Fujiwara
Rok vydání:	1978
Předmět:	Chromatography Aqueous solution Polymers and Plastics fungi Sorption General Chemistry Permeation Surfaces Coatings and Films chemistry.chemical_compound Membrane Chemical engineering chemistry Permeability (electromagnetism) Materials Chemistry Semipermeable membrane Hydrogen peroxide Water vapor
Zdroj:	Journal of Applied Polymer Science. 22:1593-1605
ISSN:	1097-4628 0021-8995
DOI:	10.1002/app.1978.070220611
Popis:	The permeability of poly-L-methionine (PLM) membrane and its oxidized form to water vapor was studied. Permeability coefficients of the PLM membrane were large, of the order of 10−7 cm3 (S.T.P.)·cm/cm2·sec·cm Hg. The sorption and permeation behavior of the PLM membrane was hydrophobic. The oxidized membrane was prepared by treating one or both sides of the PLM membrane with an aqueous solution of hydrogen peroxide. The membrane oxidized from one side is probably not layered but has a gradient of composition from one surface to the other. The amounts of water sorbed by the modified membrane increased with increase in oxidation time. The permeability coefficients of water vapor through the modified membrane were of the order of 10−6 cm3 (S.T.P.)·cm/cm2·sec·cm Hg.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::2f6a6ecab5e33f348447801634772201 https://doi.org/10.1002/app.1978.070220611 Zobrazit plný text záznamu Plný text