Mechanical and Swelling Characteristics of Kappa-carrageenin/Poly-N-isopropylacrylamide Blend Hydrogels
Two- or multi-component hydrogels consisting of the three-dimensional network of polymer chains play more and more significant role in the field of biomaterials such as contact lens, burn dressing drug delivery systems etc or in some technical fields such as gel actuators, sensors, absorbents etc. I...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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al-Farabi Kazakh National University
2002-01-01
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| Series: | Eurasian Chemico-Technological Journal |
| Online Access: | http://ect-journal.kz/index.php/ectj/article/view/273 |
| _version_ | 1811293579737300992 |
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| author | Zhang Yalong Zhang Yanqun Yi Min Ha Hongfei |
| author_facet | Zhang Yalong Zhang Yanqun Yi Min Ha Hongfei |
| author_sort | Zhang Yalong |
| collection | DOAJ |
| description | Two- or multi-component hydrogels consisting of the three-dimensional network of polymer chains play more and more significant role in the field of biomaterials such as contact lens, burn dressing drug delivery systems etc or in some technical fields such as gel actuators, sensors, absorbents etc. In the work, a novel blend hydrogel composed of kappa-carrageenin (KC) and polyisopropylacrylamide (PNIPAAm) was prepared via gamma-radiation technology at room temperature. The main component of the hydrogels is a typical temperature sensitive polymer PNIPAAm. As the second component, KC is a kind of natural macromolecules. The properties of the gels, such as gel strength, and swelling behavior were investigated. The incorporation of relatively small content (up to 5 wt.%) of KC could obviously improve the mechanical properties and swelling capacity. 3% KC content in the blend hydrogel is preferable for better strength and swelling properties. On the other hand, as a kind of polysaccharide, KC would be degraded by Оі-rays; so suitable dose must be controlled carefully. Here the total dose used was controlled below 3 kGy. KC is soluble in water. If the hydrogels synthesized in the work were as usually extracted in water or other polar solvent such as methanol, the KC in hydrogels would be also washed out completely together with unreacted monomer and linear polymer, and the action of KC in the blend hydrogels would be disappeared. Otherwise, the results published before showed that the unreacted monomer and linear polymer in the hydrogels were very small, no more than 3-5%, which would not affect the properties of the hydrogels. |
| first_indexed | 2024-04-13T05:03:32Z |
| format | Article |
| id | doaj.art-7bd38cdf16f94506842e1791f0510a28 |
| institution | Directory Open Access Journal |
| issn | 1562-3920 2522-4867 |
| language | English |
| last_indexed | 2024-04-13T05:03:32Z |
| publishDate | 2002-01-01 |
| publisher | al-Farabi Kazakh National University |
| record_format | Article |
| series | Eurasian Chemico-Technological Journal |
| spelling | doaj.art-7bd38cdf16f94506842e1791f0510a282022-12-22T03:01:14Zengal-Farabi Kazakh National UniversityEurasian Chemico-Technological Journal1562-39202522-48672002-01-0141616510.18321/ectj518273Mechanical and Swelling Characteristics of Kappa-carrageenin/Poly-N-isopropylacrylamide Blend HydrogelsZhang Yalong0Zhang Yanqun1Yi Min2Ha Hongfei3College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P.R ChinaCollege of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P.R ChinaCollege of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P.R ChinaCollege of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P.R ChinaTwo- or multi-component hydrogels consisting of the three-dimensional network of polymer chains play more and more significant role in the field of biomaterials such as contact lens, burn dressing drug delivery systems etc or in some technical fields such as gel actuators, sensors, absorbents etc. In the work, a novel blend hydrogel composed of kappa-carrageenin (KC) and polyisopropylacrylamide (PNIPAAm) was prepared via gamma-radiation technology at room temperature. The main component of the hydrogels is a typical temperature sensitive polymer PNIPAAm. As the second component, KC is a kind of natural macromolecules. The properties of the gels, such as gel strength, and swelling behavior were investigated. The incorporation of relatively small content (up to 5 wt.%) of KC could obviously improve the mechanical properties and swelling capacity. 3% KC content in the blend hydrogel is preferable for better strength and swelling properties. On the other hand, as a kind of polysaccharide, KC would be degraded by Оі-rays; so suitable dose must be controlled carefully. Here the total dose used was controlled below 3 kGy. KC is soluble in water. If the hydrogels synthesized in the work were as usually extracted in water or other polar solvent such as methanol, the KC in hydrogels would be also washed out completely together with unreacted monomer and linear polymer, and the action of KC in the blend hydrogels would be disappeared. Otherwise, the results published before showed that the unreacted monomer and linear polymer in the hydrogels were very small, no more than 3-5%, which would not affect the properties of the hydrogels.http://ect-journal.kz/index.php/ectj/article/view/273 |
| spellingShingle | Zhang Yalong Zhang Yanqun Yi Min Ha Hongfei Mechanical and Swelling Characteristics of Kappa-carrageenin/Poly-N-isopropylacrylamide Blend Hydrogels Eurasian Chemico-Technological Journal |
| title | Mechanical and Swelling Characteristics of Kappa-carrageenin/Poly-N-isopropylacrylamide Blend Hydrogels |
| title_full | Mechanical and Swelling Characteristics of Kappa-carrageenin/Poly-N-isopropylacrylamide Blend Hydrogels |
| title_fullStr | Mechanical and Swelling Characteristics of Kappa-carrageenin/Poly-N-isopropylacrylamide Blend Hydrogels |
| title_full_unstemmed | Mechanical and Swelling Characteristics of Kappa-carrageenin/Poly-N-isopropylacrylamide Blend Hydrogels |
| title_short | Mechanical and Swelling Characteristics of Kappa-carrageenin/Poly-N-isopropylacrylamide Blend Hydrogels |
| title_sort | mechanical and swelling characteristics of kappa carrageenin poly n isopropylacrylamide blend hydrogels |
| url | http://ect-journal.kz/index.php/ectj/article/view/273 |
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