Construction of Porous Starch-Based Hydrogel via Regulating the Ratio of Amylopectin/Amylose for Enhanced Water-Retention
The performance of hydrogels prepared with traditional natural starch as raw materials is considerable; the fixed ratio of amylose/amylopectin significantly limits the improvement of hydrogel structure and performance. In this paper, starch hydrogels were prepared by physical blending and chemical g...
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MDPI AG
2021-06-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/26/13/3999 |
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| author | Huiyuan Luo Fuping Dong Qian Wang Yihang Li Yuzhu Xiong |
| author_facet | Huiyuan Luo Fuping Dong Qian Wang Yihang Li Yuzhu Xiong |
| author_sort | Huiyuan Luo |
| collection | DOAJ |
| description | The performance of hydrogels prepared with traditional natural starch as raw materials is considerable; the fixed ratio of amylose/amylopectin significantly limits the improvement of hydrogel structure and performance. In this paper, starch hydrogels were prepared by physical blending and chemical grafting, with the aid of ultrasonic heating. The effects of different amylose/amylopectin ratios on the microstructure and water retention properties of starch hydrogels were studied. The results show that an increase in amylopectin content is beneficial to improve the grafting ratio of acrylamide (AM). The interaction between the AM grafted on amylopectin and amylose molecules through hydrogen bonding increases the pores of the gel network and thins the pore walls. When the amylopectin content was 70%, the water absorption (swelling 45.25 times) and water retention performance (16 days water retention rate 44.17%) were optimal. This study provides new insights into the preparation of starch-based hydrogels with excellent physical and chemical properties. |
| first_indexed | 2024-03-10T09:54:26Z |
| format | Article |
| id | doaj.art-133f522194e04c8a8c6075f0fe929043 |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-03-10T09:54:26Z |
| publishDate | 2021-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-133f522194e04c8a8c6075f0fe9290432023-11-22T02:25:20ZengMDPI AGMolecules1420-30492021-06-012613399910.3390/molecules26133999Construction of Porous Starch-Based Hydrogel via Regulating the Ratio of Amylopectin/Amylose for Enhanced Water-RetentionHuiyuan Luo0Fuping Dong1Qian Wang2Yihang Li3Yuzhu Xiong4Department of Polymer Materials and Engineering, College of Materials and Metallurgy, Guizhou University, Guiyang 550025, ChinaDepartment of Polymer Materials and Engineering, College of Materials and Metallurgy, Guizhou University, Guiyang 550025, ChinaDepartment of Polymer Materials and Engineering, College of Materials and Metallurgy, Guizhou University, Guiyang 550025, ChinaDepartment of Polymer Materials and Engineering, College of Materials and Metallurgy, Guizhou University, Guiyang 550025, ChinaDepartment of Polymer Materials and Engineering, College of Materials and Metallurgy, Guizhou University, Guiyang 550025, ChinaThe performance of hydrogels prepared with traditional natural starch as raw materials is considerable; the fixed ratio of amylose/amylopectin significantly limits the improvement of hydrogel structure and performance. In this paper, starch hydrogels were prepared by physical blending and chemical grafting, with the aid of ultrasonic heating. The effects of different amylose/amylopectin ratios on the microstructure and water retention properties of starch hydrogels were studied. The results show that an increase in amylopectin content is beneficial to improve the grafting ratio of acrylamide (AM). The interaction between the AM grafted on amylopectin and amylose molecules through hydrogen bonding increases the pores of the gel network and thins the pore walls. When the amylopectin content was 70%, the water absorption (swelling 45.25 times) and water retention performance (16 days water retention rate 44.17%) were optimal. This study provides new insights into the preparation of starch-based hydrogels with excellent physical and chemical properties.https://www.mdpi.com/1420-3049/26/13/3999ultrasonic chemistryhydrogelstarchporous structurewater-retaining |
| spellingShingle | Huiyuan Luo Fuping Dong Qian Wang Yihang Li Yuzhu Xiong Construction of Porous Starch-Based Hydrogel via Regulating the Ratio of Amylopectin/Amylose for Enhanced Water-Retention Molecules ultrasonic chemistry hydrogel starch porous structure water-retaining |
| title | Construction of Porous Starch-Based Hydrogel via Regulating the Ratio of Amylopectin/Amylose for Enhanced Water-Retention |
| title_full | Construction of Porous Starch-Based Hydrogel via Regulating the Ratio of Amylopectin/Amylose for Enhanced Water-Retention |
| title_fullStr | Construction of Porous Starch-Based Hydrogel via Regulating the Ratio of Amylopectin/Amylose for Enhanced Water-Retention |
| title_full_unstemmed | Construction of Porous Starch-Based Hydrogel via Regulating the Ratio of Amylopectin/Amylose for Enhanced Water-Retention |
| title_short | Construction of Porous Starch-Based Hydrogel via Regulating the Ratio of Amylopectin/Amylose for Enhanced Water-Retention |
| title_sort | construction of porous starch based hydrogel via regulating the ratio of amylopectin amylose for enhanced water retention |
| topic | ultrasonic chemistry hydrogel starch porous structure water-retaining |
| url | https://www.mdpi.com/1420-3049/26/13/3999 |
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