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Ionic membranes obtained by radiation - induced graft copolymerization, II-characterization and waste treatment. Vol. 3

Abstract

Ionic membranes were prepared by radiation-induced grafting of acrylic acid onto low density polyethylene films. To elucidate the possibility of practical use, a study was made for the characterization of the grafted and chemically treated mechanisms. The selectivity of such prepared membranes towards the chelation or absorption of different alkali metals was investigated, to find that the higher affinity was observed for K{sup +}, Na{sup +} and Li{sup +} ions compared to other alkali metals used. The metal uptake percent was determined using different techniques; flame photometer, and X-ray fluorescence (XRF). The uptake of metal from its feed solution by the the grafted membrane increased as the degree of grating increased, i.e. it is directly proportional to the functional carboxylic acid groups in the graft copolymer. As a consequence, the electrical conductivity of metal feed solution decreased during such process of metal chelation by membrane. The higher the grafting degree of membrane, the lower the electrical conductivity of metal feed solutions observed. the changes in thermal properties of the membranes prepared were investigated and characterized using differential scanning calorimetry, (DSC), and thermal gravimetric analysis (TGA). The thermal stability of these membranes increased with degree of grafting due to the formation  More>>
Authors:
Ali, A M.I.; Nowier, H G; Aly, H F; [1]  Abd El-Rehim, H A; Hegazy, E A [2] 
  1. National Center for Radiation and Technology, Atomic Energy Authority, Cairo, (Egypt)
  2. Hot Laboratories Center, Atomic Energy Authority, Cairo (Egypt)
Publication Date:
Mar 01, 1996
Product Type:
Miscellaneous
Report Number:
INIS-EG-002; CONF-960316-
Reference Number:
SCA: 400600; PA: AIX-28:029479; EDB-97:056478; SN: 97001764552
Resource Relation:
Conference: 6. conference of nuclear sciences and applications, Cairo (Egypt), 15-20 Mar 1996; Other Information: PBD: Mar 1996; Related Information: Is Part Of Proceedings of the sixth conference of nuclear sciences and applications. Vol. 1-4; PB: 1760 p.
Subject:
40 CHEMISTRY; MEMBRANES; GRAFT POLYMERS; POLYETHYLENES; X-RAY FLUORESCENCE ANALYSIS; ABSORPTION; ACRYLIC ACID; ALKALI METALS; EXPERIMENTAL DATA; IRRADIATION; LITHIUM IONS; POTASSIUM IONS; SODIUM IONS; THERMAL GRAVIMETRIC ANALYSIS; WASTE PROCESSING
OSTI ID:
455739
Research Organizations:
Atomic Energy Establishment, Cairo (Egypt); Egyptian Society of Nuclear Sciences and Applications, Cairo (Egypt)
Country of Origin:
Egypt
Language:
English
Other Identifying Numbers:
Other: ON: DE97620041; TRN: EG9601797029479
Availability:
INIS; OSTI as DE97620041
Submitting Site:
INIS
Size:
pp. 239
Announcement Date:

Citation Formats

Ali, A M.I., Nowier, H G, Aly, H F, Abd El-Rehim, H A, and Hegazy, E A. Ionic membranes obtained by radiation - induced graft copolymerization, II-characterization and waste treatment. Vol. 3. Egypt: N. p., 1996. Web.
Ali, A M.I., Nowier, H G, Aly, H F, Abd El-Rehim, H A, & Hegazy, E A. Ionic membranes obtained by radiation - induced graft copolymerization, II-characterization and waste treatment. Vol. 3. Egypt.
Ali, A M.I., Nowier, H G, Aly, H F, Abd El-Rehim, H A, and Hegazy, E A. 1996. "Ionic membranes obtained by radiation - induced graft copolymerization, II-characterization and waste treatment. Vol. 3." Egypt.
@misc{etde_455739,
title = {Ionic membranes obtained by radiation - induced graft copolymerization, II-characterization and waste treatment. Vol. 3}
author = {Ali, A M.I., Nowier, H G, Aly, H F, Abd El-Rehim, H A, and Hegazy, E A}
abstractNote = {Ionic membranes were prepared by radiation-induced grafting of acrylic acid onto low density polyethylene films. To elucidate the possibility of practical use, a study was made for the characterization of the grafted and chemically treated mechanisms. The selectivity of such prepared membranes towards the chelation or absorption of different alkali metals was investigated, to find that the higher affinity was observed for K{sup +}, Na{sup +} and Li{sup +} ions compared to other alkali metals used. The metal uptake percent was determined using different techniques; flame photometer, and X-ray fluorescence (XRF). The uptake of metal from its feed solution by the the grafted membrane increased as the degree of grating increased, i.e. it is directly proportional to the functional carboxylic acid groups in the graft copolymer. As a consequence, the electrical conductivity of metal feed solution decreased during such process of metal chelation by membrane. The higher the grafting degree of membrane, the lower the electrical conductivity of metal feed solutions observed. the changes in thermal properties of the membranes prepared were investigated and characterized using differential scanning calorimetry, (DSC), and thermal gravimetric analysis (TGA). The thermal stability of these membranes increased with degree of grafting due to the formation of cross linked network structure via hydrogen bonding. furthermore, such stability is enhanced for the alkali-treated membranes even at high elevated temperatures. The membranes prepared showed a great promise for possible use in some practical applications such as metal waste treatment. 3 figs., 5 tabs.}
place = {Egypt}
year = {1996}
month = {Mar}
}