Abstract
Graft copolymerization of styrene diluted with various solvents and aqueous mineral acids solutions onto electron beam irradiated poly(ethylene-co- tetrafluoroethylene) (ETFE) films was investigated. The swelling behaviour of the obtained polystyrene grafted ETFE films and their pristine counterpart towards pure solvents and monomer/solvent mixtures was evaluated together with the solubility parameters of grafting mixtures components. The kinetics of styrene grafting under the same dilution conditions was also studied. Styrene non-solvents such as methanol and ethanol were found to enhance the degree of grafting to great extent compared otherwise good solvents such as toluene. Grafting was also further enhanced by addition of acids. The synergetic effects of dilution of styrene with methanol or ethanol and acid addition observed in this study provide means to reduce key grafting parameters: monomer consumption and irradiation dose in a way possibly leading to improvements in economic and the mechanical properties of the graft copolymer membranes.
| Original language | English |
|---|---|
| Pages (from-to) | 187-203 |
| Number of pages | 17 |
| Journal | International Journal of Applied Chemistry |
| Volume | 4 |
| Issue number | 3 |
| Publication status | Published - 2008 |
| Externally published | Yes |
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Keywords
- ETFE films
- Liquid additives
- Radiation induced grafting
- Styrene
- Swelling behaviour
ASJC Scopus subject areas
- Chemistry(all)
Cite this
Effect of liquid additives on graft copolymerization of styrene onto perirradiated poly(Ethylene-Co-tetrafluoroethylene) films. / Nasef, Mohamed Mahmoud; Rohani, Rosiah; Saidi, Hamdani; Dahlan, Khairul Zaman Mohd.
In: International Journal of Applied Chemistry, Vol. 4, No. 3, 2008, p. 187-203.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Effect of liquid additives on graft copolymerization of styrene onto perirradiated poly(Ethylene-Co-tetrafluoroethylene) films
AU - Nasef, Mohamed Mahmoud
AU - Rohani, Rosiah
AU - Saidi, Hamdani
AU - Dahlan, Khairul Zaman Mohd
PY - 2008
Y1 - 2008
N2 - Graft copolymerization of styrene diluted with various solvents and aqueous mineral acids solutions onto electron beam irradiated poly(ethylene-co- tetrafluoroethylene) (ETFE) films was investigated. The swelling behaviour of the obtained polystyrene grafted ETFE films and their pristine counterpart towards pure solvents and monomer/solvent mixtures was evaluated together with the solubility parameters of grafting mixtures components. The kinetics of styrene grafting under the same dilution conditions was also studied. Styrene non-solvents such as methanol and ethanol were found to enhance the degree of grafting to great extent compared otherwise good solvents such as toluene. Grafting was also further enhanced by addition of acids. The synergetic effects of dilution of styrene with methanol or ethanol and acid addition observed in this study provide means to reduce key grafting parameters: monomer consumption and irradiation dose in a way possibly leading to improvements in economic and the mechanical properties of the graft copolymer membranes.
AB - Graft copolymerization of styrene diluted with various solvents and aqueous mineral acids solutions onto electron beam irradiated poly(ethylene-co- tetrafluoroethylene) (ETFE) films was investigated. The swelling behaviour of the obtained polystyrene grafted ETFE films and their pristine counterpart towards pure solvents and monomer/solvent mixtures was evaluated together with the solubility parameters of grafting mixtures components. The kinetics of styrene grafting under the same dilution conditions was also studied. Styrene non-solvents such as methanol and ethanol were found to enhance the degree of grafting to great extent compared otherwise good solvents such as toluene. Grafting was also further enhanced by addition of acids. The synergetic effects of dilution of styrene with methanol or ethanol and acid addition observed in this study provide means to reduce key grafting parameters: monomer consumption and irradiation dose in a way possibly leading to improvements in economic and the mechanical properties of the graft copolymer membranes.
KW - ETFE films
KW - Liquid additives
KW - Radiation induced grafting
KW - Styrene
KW - Swelling behaviour
UR - http://www.scopus.com/inward/record.url?scp=77951907360&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77951907360&partnerID=8YFLogxK
M3 - Article
VL - 4
SP - 187
EP - 203
JO - International Journal of Applied Chemistry
JF - International Journal of Applied Chemistry
SN - 0973-1792
IS - 3
ER -