Effective Enhancement of Water Absorbency of Itaconic Acid Based-Superabsorbent Polymer via Tunable Surface—Crosslinking
A superabsorbent polymer (SAP) was synthesized by copolymerizing itaconic acid and vinyl sulfonic acid. The typically low absorbency of itaconic acid-based SAPs under mechanical loads was improved by introducing surface crosslinking. Fourier-transform infrared spectroscopy and X-ray photoelectron sp...
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| Veröffentlicht in: | Polymers 2021-08, Vol.13 (16), p.2782 |
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| creator | Kwon, Yong-Rok Kim, Jung-Soo Kim, Dong-Hyun |
| description | A superabsorbent polymer (SAP) was synthesized by copolymerizing itaconic acid and vinyl sulfonic acid. The typically low absorbency of itaconic acid-based SAPs under mechanical loads was improved by introducing surface crosslinking. Fourier-transform infrared spectroscopy and X-ray photoelectron spectroscopy were used to characterize the synthesis and surface-crosslinking reactions in the SAP. Various conditions for surface-crosslinking reactions, such as the surface-crosslinking solution, content of surface-crosslinking agent, and reaction temperature, were explored and correlated with the gel strength and absorption characteristics of the resulting SAP particles. The distilled water content in the surface-crosslinking solution strongly influenced the absorption capacity of the SAP, but this sensitivity decreased when acetone was used as a co-solvent. Itaconic acid-based SAP that was crosslinked under optimal conditions exhibited centrifuge retention capacity and absorbency under a load of 31.1 and 20.2, respectively. |
| doi_str_mv | 10.3390/polym13162782 |
| format | Article |
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The typically low absorbency of itaconic acid-based SAPs under mechanical loads was improved by introducing surface crosslinking. Fourier-transform infrared spectroscopy and X-ray photoelectron spectroscopy were used to characterize the synthesis and surface-crosslinking reactions in the SAP. Various conditions for surface-crosslinking reactions, such as the surface-crosslinking solution, content of surface-crosslinking agent, and reaction temperature, were explored and correlated with the gel strength and absorption characteristics of the resulting SAP particles. The distilled water content in the surface-crosslinking solution strongly influenced the absorption capacity of the SAP, but this sensitivity decreased when acetone was used as a co-solvent. Itaconic acid-based SAP that was crosslinked under optimal conditions exhibited centrifuge retention capacity and absorbency under a load of 31.1 and 20.2, respectively.</description><identifier>ISSN: 2073-4360</identifier><identifier>EISSN: 2073-4360</identifier><identifier>DOI: 10.3390/polym13162782</identifier><identifier>PMID: 34451320</identifier><language>eng</language><publisher>Basel: MDPI AG</publisher><subject>Acids ; Aqueous solutions ; Chemical synthesis ; Copolymerization ; Crosslinking ; Distilled water ; Fourier transforms ; Infrared spectroscopy ; Itaconic acid ; Moisture content ; Photoelectrons ; Polymerization ; Retention ; Rheology ; Shear strain ; Solvents ; Spectrum analysis ; Sulfonic acid ; Superabsorbent polymers ; Surface chemistry ; Water absorption</subject><ispartof>Polymers, 2021-08, Vol.13 (16), p.2782</ispartof><rights>2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). 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The typically low absorbency of itaconic acid-based SAPs under mechanical loads was improved by introducing surface crosslinking. Fourier-transform infrared spectroscopy and X-ray photoelectron spectroscopy were used to characterize the synthesis and surface-crosslinking reactions in the SAP. Various conditions for surface-crosslinking reactions, such as the surface-crosslinking solution, content of surface-crosslinking agent, and reaction temperature, were explored and correlated with the gel strength and absorption characteristics of the resulting SAP particles. The distilled water content in the surface-crosslinking solution strongly influenced the absorption capacity of the SAP, but this sensitivity decreased when acetone was used as a co-solvent. Itaconic acid-based SAP that was crosslinked under optimal conditions exhibited centrifuge retention capacity and absorbency under a load of 31.1 and 20.2, respectively.</description><subject>Acids</subject><subject>Aqueous solutions</subject><subject>Chemical synthesis</subject><subject>Copolymerization</subject><subject>Crosslinking</subject><subject>Distilled water</subject><subject>Fourier transforms</subject><subject>Infrared spectroscopy</subject><subject>Itaconic acid</subject><subject>Moisture content</subject><subject>Photoelectrons</subject><subject>Polymerization</subject><subject>Retention</subject><subject>Rheology</subject><subject>Shear strain</subject><subject>Solvents</subject><subject>Spectrum analysis</subject><subject>Sulfonic acid</subject><subject>Superabsorbent polymers</subject><subject>Surface chemistry</subject><subject>Water absorption</subject><issn>2073-4360</issn><issn>2073-4360</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNpdUU1rGzEQFaElCa6PvQty6WVTfe3XJeAaJzUEUohLj0LSjhKlu5Ir7RqcU35EfmF-SXaJKU3nMsPMm8ebNwh9puSc85p83YZ231FOC1ZW7AidMlLyTPCCfPinPkHzlB7IGCIvCloeoxMuRE45I6focWUtmN7tAK_8vfIGOvA9Dhb_Uj1EvNApRA3e7KfeulcmeGfwwrgGf1MJmux22EJUB1iPf0ySxsWdU3gzeKVbwLdDtMrAy9PzMoaUWud_O3_3CX20qk0wP-QZ-nm52iy_Z9c3V-vl4jozvGZ9VrG6BlIqDbwitSip4TlVuWVCU9CsaTjXNreNqStlRVFz0hBbl4UBroWoCj5DF2-820F30JhRZVSt3EbXqbiXQTn5fuLdvbwLO1kJQscYCb4cCGL4M0DqZeeSgbZVHsKQJBttJUKUo-EzdPYf9CEM0Y_nTai8oKQqJ0XZG8pMdkSwf8VQIqfHyneP5a-va5hD</recordid><startdate>20210819</startdate><enddate>20210819</enddate><creator>Kwon, Yong-Rok</creator><creator>Kim, Jung-Soo</creator><creator>Kim, Dong-Hyun</creator><general>MDPI AG</general><general>MDPI</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>JG9</scope><scope>KB.</scope><scope>PDBOC</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>7X8</scope><scope>5PM</scope><orcidid>https://orcid.org/0000-0002-2107-1305</orcidid></search><sort><creationdate>20210819</creationdate><title>Effective Enhancement of Water Absorbency of Itaconic Acid Based-Superabsorbent Polymer via Tunable Surface—Crosslinking</title><author>Kwon, Yong-Rok ; Kim, Jung-Soo ; Kim, Dong-Hyun</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c392t-8299e07abe3809471c351a5f24b1eb2dd33bf5fdc98af46930d0f976ce3b44863</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Acids</topic><topic>Aqueous solutions</topic><topic>Chemical synthesis</topic><topic>Copolymerization</topic><topic>Crosslinking</topic><topic>Distilled water</topic><topic>Fourier transforms</topic><topic>Infrared spectroscopy</topic><topic>Itaconic acid</topic><topic>Moisture content</topic><topic>Photoelectrons</topic><topic>Polymerization</topic><topic>Retention</topic><topic>Rheology</topic><topic>Shear strain</topic><topic>Solvents</topic><topic>Spectrum analysis</topic><topic>Sulfonic acid</topic><topic>Superabsorbent polymers</topic><topic>Surface chemistry</topic><topic>Water absorption</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kwon, Yong-Rok</creatorcontrib><creatorcontrib>Kim, Jung-Soo</creatorcontrib><creatorcontrib>Kim, Dong-Hyun</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Materials Science Collection</collection><collection>ProQuest Central Korea</collection><collection>SciTech Premium Collection</collection><collection>Materials Research Database</collection><collection>Materials Science Database</collection><collection>Materials Science Collection</collection><collection>Publicly Available Content Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>Polymers</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kwon, Yong-Rok</au><au>Kim, Jung-Soo</au><au>Kim, Dong-Hyun</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effective Enhancement of Water Absorbency of Itaconic Acid Based-Superabsorbent Polymer via Tunable Surface—Crosslinking</atitle><jtitle>Polymers</jtitle><date>2021-08-19</date><risdate>2021</risdate><volume>13</volume><issue>16</issue><spage>2782</spage><pages>2782-</pages><issn>2073-4360</issn><eissn>2073-4360</eissn><abstract>A superabsorbent polymer (SAP) was synthesized by copolymerizing itaconic acid and vinyl sulfonic acid. The typically low absorbency of itaconic acid-based SAPs under mechanical loads was improved by introducing surface crosslinking. Fourier-transform infrared spectroscopy and X-ray photoelectron spectroscopy were used to characterize the synthesis and surface-crosslinking reactions in the SAP. Various conditions for surface-crosslinking reactions, such as the surface-crosslinking solution, content of surface-crosslinking agent, and reaction temperature, were explored and correlated with the gel strength and absorption characteristics of the resulting SAP particles. The distilled water content in the surface-crosslinking solution strongly influenced the absorption capacity of the SAP, but this sensitivity decreased when acetone was used as a co-solvent. 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| subjects | Acids Aqueous solutions Chemical synthesis Copolymerization Crosslinking Distilled water Fourier transforms Infrared spectroscopy Itaconic acid Moisture content Photoelectrons Polymerization Retention Rheology Shear strain Solvents Spectrum analysis Sulfonic acid Superabsorbent polymers Surface chemistry Water absorption |
| title | Effective Enhancement of Water Absorbency of Itaconic Acid Based-Superabsorbent Polymer via Tunable Surface—Crosslinking |
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