Synthesis and characterization of starch ether/alginate hydrogels with reversible and tunable thermoresponsive properties
A thermoresponsive hydrogel that was composed of 2-hydroxy-3-isopropoxypropyl starch (HIPS) and alginate was synthesized via cross-linking with hybrid crosslinkers including ethylene glycol diglycidyl ether (EDGE) and calcium chloride (CaCl _2 ). Attenuated total reflection infrared spectroscopy (AT...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2020-01-01
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| Series: | Materials Research Express |
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| Online Access: | https://doi.org/10.1088/2053-1591/abae28 |
| _version_ | 1797746233372049408 |
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| author | Mingyun Dai Yue Shang Miao Li Benzhi Ju Ying Liu Ye Tian |
| author_facet | Mingyun Dai Yue Shang Miao Li Benzhi Ju Ying Liu Ye Tian |
| author_sort | Mingyun Dai |
| collection | DOAJ |
| description | A thermoresponsive hydrogel that was composed of 2-hydroxy-3-isopropoxypropyl starch (HIPS) and alginate was synthesized via cross-linking with hybrid crosslinkers including ethylene glycol diglycidyl ether (EDGE) and calcium chloride (CaCl _2 ). Attenuated total reflection infrared spectroscopy (ATR-IR), thermogravimetric analysis (TGA) and derivative thermogravimetry (DTG) were used to confirm that cross-linking occurred. The porous architecture of the HIPS/SA composite hydrogels was investigated using scanning electron microscopy (SEM). Composite hydrogels had a tunable volume phase transition temperature (VPTT) that was in the range from 29.4 to 40.2 °C and resulted from changes in the compositions (HIPS concentration from 5.5 to 7.5 wt%). It was also found that the presence of NaCl (0 to 20 g l ^−1 ) or organic solvents (alcohols, 0 to 50 g l ^−1 ) in aqueous medium changed the VPTT of the composite hydrogels; also, the VPTT decreased as the concentration of NaCl or organic solvents increased. Additionally, alcohols that have long carbon chains (isopropanol > ethanol > methanol) exhibited a more significant effect on the VPTT of hydrogel. The hydrogel could shed and absorb most of the water in a very short time and demonstrate a stable reversible swelling-deswelling property after 5 swelling-deswelling cycles. |
| first_indexed | 2024-03-12T15:34:57Z |
| format | Article |
| id | doaj.art-fb1ced2b6c674f5b97ebbd23aa1ff333 |
| institution | Directory Open Access Journal |
| issn | 2053-1591 |
| language | English |
| last_indexed | 2024-03-12T15:34:57Z |
| publishDate | 2020-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj.art-fb1ced2b6c674f5b97ebbd23aa1ff3332023-08-09T16:18:39ZengIOP PublishingMaterials Research Express2053-15912020-01-017808570110.1088/2053-1591/abae28Synthesis and characterization of starch ether/alginate hydrogels with reversible and tunable thermoresponsive propertiesMingyun Dai0Yue Shang1Miao Li2Benzhi Ju3Ying Liu4Ye Tian5https://orcid.org/0000-0002-9750-7777College of Marine Technology and Environment, Dalian Ocean University , Dalian, People’s Republic of China; Key Laboratory of Environment Controlled Aquaculture, Ministry of Education, Dalian, People’s Republic of ChinaCollege of Marine Technology and Environment, Dalian Ocean University , Dalian, People’s Republic of China; Key Laboratory of Environment Controlled Aquaculture, Ministry of Education, Dalian, People’s Republic of ChinaSchool of Biological Engineering, Dalian Polytechnic University , Dalian, People’s Republic of ChinaState Key Laboratory of Fine Chemicals, Dalian University of Technology , Dalian, People’s Republic of ChinaCollege of Marine Technology and Environment, Dalian Ocean University , Dalian, People’s Republic of China; Key Laboratory of Environment Controlled Aquaculture, Ministry of Education, Dalian, People’s Republic of ChinaCollege of Marine Technology and Environment, Dalian Ocean University , Dalian, People’s Republic of China; Key Laboratory of Environment Controlled Aquaculture, Ministry of Education, Dalian, People’s Republic of ChinaA thermoresponsive hydrogel that was composed of 2-hydroxy-3-isopropoxypropyl starch (HIPS) and alginate was synthesized via cross-linking with hybrid crosslinkers including ethylene glycol diglycidyl ether (EDGE) and calcium chloride (CaCl _2 ). Attenuated total reflection infrared spectroscopy (ATR-IR), thermogravimetric analysis (TGA) and derivative thermogravimetry (DTG) were used to confirm that cross-linking occurred. The porous architecture of the HIPS/SA composite hydrogels was investigated using scanning electron microscopy (SEM). Composite hydrogels had a tunable volume phase transition temperature (VPTT) that was in the range from 29.4 to 40.2 °C and resulted from changes in the compositions (HIPS concentration from 5.5 to 7.5 wt%). It was also found that the presence of NaCl (0 to 20 g l ^−1 ) or organic solvents (alcohols, 0 to 50 g l ^−1 ) in aqueous medium changed the VPTT of the composite hydrogels; also, the VPTT decreased as the concentration of NaCl or organic solvents increased. Additionally, alcohols that have long carbon chains (isopropanol > ethanol > methanol) exhibited a more significant effect on the VPTT of hydrogel. The hydrogel could shed and absorb most of the water in a very short time and demonstrate a stable reversible swelling-deswelling property after 5 swelling-deswelling cycles.https://doi.org/10.1088/2053-1591/abae28hydrogelthermoresponsivealginatestarch ether |
| spellingShingle | Mingyun Dai Yue Shang Miao Li Benzhi Ju Ying Liu Ye Tian Synthesis and characterization of starch ether/alginate hydrogels with reversible and tunable thermoresponsive properties Materials Research Express hydrogel thermoresponsive alginate starch ether |
| title | Synthesis and characterization of starch ether/alginate hydrogels with reversible and tunable thermoresponsive properties |
| title_full | Synthesis and characterization of starch ether/alginate hydrogels with reversible and tunable thermoresponsive properties |
| title_fullStr | Synthesis and characterization of starch ether/alginate hydrogels with reversible and tunable thermoresponsive properties |
| title_full_unstemmed | Synthesis and characterization of starch ether/alginate hydrogels with reversible and tunable thermoresponsive properties |
| title_short | Synthesis and characterization of starch ether/alginate hydrogels with reversible and tunable thermoresponsive properties |
| title_sort | synthesis and characterization of starch ether alginate hydrogels with reversible and tunable thermoresponsive properties |
| topic | hydrogel thermoresponsive alginate starch ether |
| url | https://doi.org/10.1088/2053-1591/abae28 |
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