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Graft copolymers of polypropylene films. 1. radiation induced grafting of mixed monomers. Vol. 3

Abstract

Radiation graft copolymerization of co monomer mixtures of acrylic acid (AAC), and styrene (S) onto polypropylene (PP) film by mutual method has been investigated. The effects of different factors that may affect the grafting yield such as inhibitor concentration (Mohr`s salt), solvent composition (MeOH and H{sub 2} O), radiation dose and dose rate were considered. It was found that the role of Mohr`s salt is very effective when the ratio of AAC in the co monomer mixtures was at lower values. However, the addition of 1.25 Wt% of Mohr`s salt reduced the homo polymer formation and enhances the grafting process. Graft copolymerization in presence of solvent mixture composed of methanol and water was found to afford higher grafting than in pure methanol regardless of the composition of the co monomer mixture used. However, the highest degree of grafting was obtained at a solvent composition of 20% H{sub 2} O:80%MeOH and a co monomer mixture of 20%AAC:80%sty. An attempt was made to determine each PAAC and PS fractions in the total graft yield obtained. Two methods of analysis based on using the reactivity ratios reported in literature, elemental analysis and IR spectroscopy. The determination of poly (acrylic acid) and polystyrene fractions  More>>
Authors:
El-Salmawi, K M; El-Naggar, A M; Said, H M; Zahran, A H [1] 
  1. Radiation Chemistry Department, National Center for Radiation Research and Technology, 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-28:029480; EDB-97:056480; SN: 97001764553
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; MONOMERS; CHEMICAL RADIATION EFFECTS; ACRYLIC ACID; COPOLYMERS; EXPERIMENTAL DATA; GRAFTS; METHANOL; POLYPROPYLENE; STYRENE
OSTI ID:
455740
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: EG9601798029480
Availability:
INIS; OSTI as DE97620041
Submitting Site:
INIS
Size:
pp. 254
Announcement Date:

Citation Formats

El-Salmawi, K M, El-Naggar, A M, Said, H M, and Zahran, A H. Graft copolymers of polypropylene films. 1. radiation induced grafting of mixed monomers. Vol. 3. Egypt: N. p., 1996. Web.
El-Salmawi, K M, El-Naggar, A M, Said, H M, & Zahran, A H. Graft copolymers of polypropylene films. 1. radiation induced grafting of mixed monomers. Vol. 3. Egypt.
El-Salmawi, K M, El-Naggar, A M, Said, H M, and Zahran, A H. 1996. "Graft copolymers of polypropylene films. 1. radiation induced grafting of mixed monomers. Vol. 3." Egypt.
@misc{etde_455740,
title = {Graft copolymers of polypropylene films. 1. radiation induced grafting of mixed monomers. Vol. 3}
author = {El-Salmawi, K M, El-Naggar, A M, Said, H M, and Zahran, A H}
abstractNote = {Radiation graft copolymerization of co monomer mixtures of acrylic acid (AAC), and styrene (S) onto polypropylene (PP) film by mutual method has been investigated. The effects of different factors that may affect the grafting yield such as inhibitor concentration (Mohr`s salt), solvent composition (MeOH and H{sub 2} O), radiation dose and dose rate were considered. It was found that the role of Mohr`s salt is very effective when the ratio of AAC in the co monomer mixtures was at lower values. However, the addition of 1.25 Wt% of Mohr`s salt reduced the homo polymer formation and enhances the grafting process. Graft copolymerization in presence of solvent mixture composed of methanol and water was found to afford higher grafting than in pure methanol regardless of the composition of the co monomer mixture used. However, the highest degree of grafting was obtained at a solvent composition of 20% H{sub 2} O:80%MeOH and a co monomer mixture of 20%AAC:80%sty. An attempt was made to determine each PAAC and PS fractions in the total graft yield obtained. Two methods of analysis based on using the reactivity ratios reported in literature, elemental analysis and IR spectroscopy. The determination of poly (acrylic acid) and polystyrene fractions by elemental analysis is believed more accurate than these by reactivity ratio. The precise results obtained by elemental analysis with respect to the chemical structure of known polymer prepared under identical conditions. The results obtained by IR measurements go well with that obtained with the reactivity ratio methods. 5 figs., 3 tabs.}
place = {Egypt}
year = {1996}
month = {Mar}
}