Synthesis, Characterisation and Flocculation Properties of Carboxymethyl Cellulose-g Acrylamide
Graft copolymers of acrylamide on carboxymethyl cellulose (d.s 0.4-0.5) were prepared by the use of ceric ion, ceric ion/reductant molecule initiator systems in aqueous medium. The graft copolymers were characterized by IR spectroscopy. The extent of graft copolymerisation was measured in terms of g...
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| Language: | English |
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University of Tehran
2004-03-01
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| Series: | Journal of Sciences, Islamic Republic of Iran |
| Online Access: | https://jsciences.ut.ac.ir/article_31581_2d851baded2cc30dff713f5a19fa764d.pdf |
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| description | Graft copolymers of acrylamide on carboxymethyl cellulose (d.s 0.4-0.5) were prepared by the use of ceric ion, ceric ion/reductant molecule initiator systems in aqueous medium. The graft copolymers were characterized by IR spectroscopy. The extent of graft copolymerisation was measured in terms of grafted chains as a function of both ceric ion and ceric ion/reductant molecule concentrations. It was found that introduction of reductant molecule resulted in up to 13 fold increase in percent graft levels. Flocculation of the copolymer samples and ungrafted carboxymethyl cellulose were studied using synthetic effluent of Kaolin (0.25%) in distilled water. The flocculation capacity measured in terms of reduction in the turbidity was found to be highest for carboxymethyl cellulose-g acrylamide and was dependent on the number and molecular size of the grafted polyacrylamide. |
| format | Article |
| id | doaj-art-21628dabb2c447cd9eab8dc011b10cec |
| institution | OA Journals |
| issn | 1016-1104 2345-6914 |
| language | English |
| publishDate | 2004-03-01 |
| publisher | University of Tehran |
| record_format | Article |
| series | Journal of Sciences, Islamic Republic of Iran |
| spelling | doaj-art-21628dabb2c447cd9eab8dc011b10cec2025-08-20T01:53:33ZengUniversity of TehranJournal of Sciences, Islamic Republic of Iran1016-11042345-69142004-03-0115131581Synthesis, Characterisation and Flocculation Properties of Carboxymethyl Cellulose-g AcrylamideGraft copolymers of acrylamide on carboxymethyl cellulose (d.s 0.4-0.5) were prepared by the use of ceric ion, ceric ion/reductant molecule initiator systems in aqueous medium. The graft copolymers were characterized by IR spectroscopy. The extent of graft copolymerisation was measured in terms of grafted chains as a function of both ceric ion and ceric ion/reductant molecule concentrations. It was found that introduction of reductant molecule resulted in up to 13 fold increase in percent graft levels. Flocculation of the copolymer samples and ungrafted carboxymethyl cellulose were studied using synthetic effluent of Kaolin (0.25%) in distilled water. The flocculation capacity measured in terms of reduction in the turbidity was found to be highest for carboxymethyl cellulose-g acrylamide and was dependent on the number and molecular size of the grafted polyacrylamide.https://jsciences.ut.ac.ir/article_31581_2d851baded2cc30dff713f5a19fa764d.pdf |
| spellingShingle | Synthesis, Characterisation and Flocculation Properties of Carboxymethyl Cellulose-g Acrylamide Journal of Sciences, Islamic Republic of Iran |
| title | Synthesis, Characterisation and Flocculation Properties of Carboxymethyl Cellulose-g Acrylamide |
| title_full | Synthesis, Characterisation and Flocculation Properties of Carboxymethyl Cellulose-g Acrylamide |
| title_fullStr | Synthesis, Characterisation and Flocculation Properties of Carboxymethyl Cellulose-g Acrylamide |
| title_full_unstemmed | Synthesis, Characterisation and Flocculation Properties of Carboxymethyl Cellulose-g Acrylamide |
| title_short | Synthesis, Characterisation and Flocculation Properties of Carboxymethyl Cellulose-g Acrylamide |
| title_sort | synthesis characterisation and flocculation properties of carboxymethyl cellulose g acrylamide |
| url | https://jsciences.ut.ac.ir/article_31581_2d851baded2cc30dff713f5a19fa764d.pdf |