Gas Permeation Properties of Phenylene Oxide Polymers Научная публикация
Журнал |
Journal of Membrane Science
ISSN: 0376-7388 , E-ISSN: 1873-3123 |
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Вых. Данные | Год: 1998, Том: 138, Номер: 1, Страницы: 99-107 Страниц : 9 DOI: 10.1016/S0376-7388(97)00219-6 | ||||||
Ключевые слова | Diffusion, Gas and vapor permeation, Gas separations, Semicrystalline polymers, Sorption | ||||||
Авторы |
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Организации |
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Реферат:
Gas permeability (Pi) and diffusion (Di) coefficients in respect to several gases (H2, O2, N2, CO, CO2, CH4) have been measured for poly(2,6-dimethylphenylene oxide) (PMPO), poly(2,6-diphenylphenylene oxide) (PPPO), and phenylene oxide copolymers containing methyl, phenyl, and allyl radicals as side groups. X-ray diffraction study shows that both homopolymers are semicrystalline materials, whereas all the copolymers are completely amorphous. The results show that a replacement of methyl by phenyl groups in PMPO/PPPO pair is accompanied by decrease in the P values. A transition from semicrystalline PMPO to amorphous copolymers results in a decrease in permeability and solubility coefficients and not in a growth of these parameters as can be expected on the basis of the behavior of other semicrystalline polymers (e.g. polyolefins). It is supposed that the crystallites of PMPO, and possibly of PPPO are packed loosely and, hence, take part in sorption and gas transport. This assumption is in agreement with numerous X-ray data as well as the results of positron annihilation study of these polymers.
Библиографическая ссылка:
Alentiev A.
, Drioli E.
, Gokzhaev M.
, Golemme G.
, Ilinich O.
, Lapkin A.
, Volkov V.
, Yampolskii Y.
Gas Permeation Properties of Phenylene Oxide Polymers
Journal of Membrane Science. 1998. V.138. N1. P.99-107. DOI: 10.1016/S0376-7388(97)00219-6 WOS Scopus РИНЦ
Gas Permeation Properties of Phenylene Oxide Polymers
Journal of Membrane Science. 1998. V.138. N1. P.99-107. DOI: 10.1016/S0376-7388(97)00219-6 WOS Scopus РИНЦ
Даты:
Поступила в редакцию: | 16 мая 1997 г. |
Принята к публикации: | 25 авг. 1997 г. |
Опубликована в печати: | 7 янв. 1998 г. |
Опубликована online: | 29 мая 1998 г. |
Идентификаторы БД:
Web of science | WOS:000071467200009 |
Scopus | 2-s2.0-0032491886 |
РИНЦ | 13277360 |
Chemical Abstracts | 1997:783181 |
Chemical Abstracts (print) | 128:89385 |
OpenAlex | W1980054008 |