Radiation-induced grafting of styrene onto LDPE films for preparation of cation exchange membranes I. Effects of of grafting conditions
Mohamed Mahmoud Nasef, and Hamdani Saidi, and Hussin Mohd Nor, (1999) Radiation-induced grafting of styrene onto LDPE films for preparation of cation exchange membranes I. Effects of of grafting conditions. Jurnal Sains Nuklear Malaysia, 17 (1). ISSN 01280155 Full text not available from this repository. Official URL: http://oldwww.mint.gov.my/mns/Publication/JSNM/1999_Jun/Rad_Ind_LDPE.htm AffiliationsUniversiti Teknologi Malaysia, Faculty of Chemical and Natural Resources["lib/metafield:join_corp_creators" not defined]Universiti Teknologi Malaysia, Faculty of Chemical and Natural Resources["lib/metafield:join_corp_creators" not defined]Universiti Teknologi Malaysia, Faculty of Chemical and Natural Resources AbstractPE-g-polystyrene copolymers were prepared by simultaneous radiation-induce graft copolymerization of styrene onto low density polyethylene (LDPE) films. The effects of irradiation conditions such as monomer concentration, Mohr`s salt and sulfuric acid addition, irradiation dose and dose rate were investigated. It was found that the degree of grafting increases with monomer concentration and reaches its maximum value at styrene concentration of 80 vol %. The addition of Mohr`s salt as well as sulfuric acid caused a considerable increase in the degree of grafting with various styrene concentrations. The degree of grafting also increased with the increase in irradiation dose, however it remarkably decreased with the increase in the dose rate. The formation of graft copolymers was confirmed by FTIR analysis. The structural investigation of the graft copolymer was carried out by x-ray diffraction (XRD). The degree of crystallinity content was found to be decreased with the increase in the degree of grafting and influenced the mechanical properties of the graft copolymer to some extent.
Kopolimer polistirena-g-PE disediakan melalui penggrafan stirena teraruh sinaran keatas filem polietilena berketumpatan rendah (LDPE), Kesan keadaan penyinaran seperti kepekatan monomer, penambahan garam Mohr dan asid sulfurik, dos penyinaran dan kadar dos dikaji. Didapati bahawa darjah penggarafan menambah dengan kepekatan monomer dan mencapai nilai maksimum pada kepekatan stirena 80% isipadu. Penambahan garam Mohr seperti juga asid sulfurik menyebabkan penambahan darjah penggarafan dengan berbagai kepekatan stirena. Darjah penggrafan juga menokok dengan pertambahan dos penyinaran, tetapi menurun dengan banyak denagn penambahan kadar dos. Pembentukan polimer graf disahkan dengan analisis FTIR. Kajian struktur kopolimer graf dilakukan dengan pembelauan sinar-x (XRD). Darjah penghabluran didapati menurun dengan pertambahan darjah penggarafan dan mempengaruhi sifat mekanikal kopolimer graf ke takat tertentu. | Item Type: | Journal |
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| Additional Information: | This note was added by the search_and_modify.pl script. |
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| Keywords: | Radiation grafting, LDPE, Styrene, Cation exchange membrane, FTIR, XRD |
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| Subjects: | Q Science, Computer Science |
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| ID Code: | 3354 |
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