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Ionic membranes obtained by radiation-induced graft copolymerization, I-preparation. Vol. 3

Abstract

A study has been made on the preparation of ionic membranes by radiation-induced graft copolymerization of acrylic acid (AAC) onto low density polyethylene (LDPE) films. The Suitable conditions at which the grafting proceeds homogeneously were determined. To minimize the homo polymerization of AAC during irradiation process different types of inhibitors were investigated to find that the addition of Fe Cl{sub 3} (1.5 Wt%) effectively reduced such process when compared with other inhibitors used. The suitable diluent for this grafting system is found to be distilled water, methanol and methanol water mixture. The effect of diluent mixture composition, irradiation time, addition of mineral or organic acid and metal chlorides on the grafting yield and its homogeneity in the graft copolymer was determined. It was observed that the grafting yield increased as the content of water increased in MeOH/H{sub 2} O mixture. The addition of oxalic acid to the reaction medium enhanced the grafting process, however, the addition of HCl or H{sub 2} S O{sub 4} resulted in a more homogeneous grafting. The same effect was also observed when metal salts; namely N H{sub 4} Cl, NaCl and Cu Cl{sub 2} were added and resulted in homogeneous grafted membranes. The swelling and  More>>
Authors:
Abd El-Rehim, H A; Hegazy, E A; [1]  Ali, A M.I.; Nowier, H G; Aly, H F [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-28:029478; EDB-97:056486; SN: 97001764551
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; COPOLYMERIZATION; CHEMICAL PREPARATION; GRAFTS; MEMBRANES; ACRYLIC ACID; EXPERIMENTAL DATA; GRAFT POLYMERS; HOMOGENEOUS MIXTURES; ION EXCHANGE MATERIALS; METHANOL; POLYETHYLENES; RADIATIONS; WATER
OSTI ID:
455738
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: EG9601796029478
Availability:
INIS; OSTI as DE97620041
Submitting Site:
INIS
Size:
pp. 227
Announcement Date:

Citation Formats

Abd El-Rehim, H A, Hegazy, E A, Ali, A M.I., Nowier, H G, and Aly, H F. Ionic membranes obtained by radiation-induced graft copolymerization, I-preparation. Vol. 3. Egypt: N. p., 1996. Web.
Abd El-Rehim, H A, Hegazy, E A, Ali, A M.I., Nowier, H G, & Aly, H F. Ionic membranes obtained by radiation-induced graft copolymerization, I-preparation. Vol. 3. Egypt.
Abd El-Rehim, H A, Hegazy, E A, Ali, A M.I., Nowier, H G, and Aly, H F. 1996. "Ionic membranes obtained by radiation-induced graft copolymerization, I-preparation. Vol. 3." Egypt.
@misc{etde_455738,
title = {Ionic membranes obtained by radiation-induced graft copolymerization, I-preparation. Vol. 3}
author = {Abd El-Rehim, H A, Hegazy, E A, Ali, A M.I., Nowier, H G, and Aly, H F}
abstractNote = {A study has been made on the preparation of ionic membranes by radiation-induced graft copolymerization of acrylic acid (AAC) onto low density polyethylene (LDPE) films. The Suitable conditions at which the grafting proceeds homogeneously were determined. To minimize the homo polymerization of AAC during irradiation process different types of inhibitors were investigated to find that the addition of Fe Cl{sub 3} (1.5 Wt%) effectively reduced such process when compared with other inhibitors used. The suitable diluent for this grafting system is found to be distilled water, methanol and methanol water mixture. The effect of diluent mixture composition, irradiation time, addition of mineral or organic acid and metal chlorides on the grafting yield and its homogeneity in the graft copolymer was determined. It was observed that the grafting yield increased as the content of water increased in MeOH/H{sub 2} O mixture. The addition of oxalic acid to the reaction medium enhanced the grafting process, however, the addition of HCl or H{sub 2} S O{sub 4} resulted in a more homogeneous grafting. The same effect was also observed when metal salts; namely N H{sub 4} Cl, NaCl and Cu Cl{sub 2} were added and resulted in homogeneous grafted membranes. The swelling and permeability of the grafted films prepared were also investigated. Results obtained in this study showed a great promise for the possible practical use of such prepared graft copolymers as a good hydrophilic membrane. The possibility of its use as an ion-exchange membrane for metal waste will be considered.4 figs., 5 tabs.}
place = {Egypt}
year = {1996}
month = {Mar}
}