Determination of the substitution degree of modified chitosan by cyclic voltammetry at the water/dichloroethane interface
The electrochemical behavior of the cationic polymer chitosan-gtmac (Ch-GTMAC), at the polarized water/1,2-dichloroethane interface was studied. This polymer was obtained by nucleophilic reaction of chitosan (Ch) with glycidyltrimethylammonium chloride groups (GTMAC). The voltammetric response was f...
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Veröffentlicht in: | Electrochimica acta 2014-01, Vol.117, p.534-540 |
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description | The electrochemical behavior of the cationic polymer chitosan-gtmac (Ch-GTMAC), at the polarized water/1,2-dichloroethane interface was studied. This polymer was obtained by nucleophilic reaction of chitosan (Ch) with glycidyltrimethylammonium chloride groups (GTMAC). The voltammetric response was found to be dependent on the concentration of the polymer, on pH of the aqueous phase, and on the nature of the organic electrolyte. The results suggest a weak adsorption of the polymer coupled to the transfer towards the organic phase. Desorption process is quasi-reversible, and there is not interaction between adsorbents. From the analysis of desorption charge, it was possible to determine the substitution degree of the polymer |
doi_str_mv | 10.1016/j.electacta.2013.11.146 |
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This polymer was obtained by nucleophilic reaction of chitosan (Ch) with glycidyltrimethylammonium chloride groups (GTMAC). The voltammetric response was found to be dependent on the concentration of the polymer, on pH of the aqueous phase, and on the nature of the organic electrolyte. The results suggest a weak adsorption of the polymer coupled to the transfer towards the organic phase. Desorption process is quasi-reversible, and there is not interaction between adsorbents. 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From the analysis of desorption charge, it was possible to determine the substitution degree of the polymer</description><subject>Adsorbents</subject><subject>Cationic</subject><subject>cationic polyelectrolytes</subject><subject>Charge</subject><subject>Chitosan</subject><subject>Chlorides</subject><subject>Desorption</subject><subject>Dichloroethane</subject><subject>Joining</subject><subject>Liquid/liquid interfaces</subject><subject>quaternized chitosan</subject><subject>Voltammetry</subject><issn>0013-4686</issn><issn>1873-3859</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNqNkUFv1DAQhS0EEkvhN-Ajl6SeOLGTY1WgIFXiAmfLOx6zXiVxsb1F-fd4u4hrkUYaad43T6N5jL0H0YIAdX1saSYstlbbCZAtQAu9esF2MGrZyHGYXrKdqErTq1G9Zm9yPgohtNJix7aPVCgtYbUlxJVHz8uBeD7tcwnl9DRz9DMRnaUluuADOY6HUGK2K99vHDecA_LHOBe7LFTSxm15cvltq_W1C3iYY4pUDnYlHtY69BbpLXvl7Zzp3d9-xX58_vT99ktz_-3u6-3NfYODEKXxUlPXYS8laUXkVU84Okkg0HdOCTfufbefJOhOwwTK9x147AkG9ERSySv24eL7kOKvE-VilpCR5rleE0_ZgNJ6mpSapufRof5MjWOn_wMdAISYBllRfUExxZwTefOQwmLTZkCYc4TmaP5FaM4RGgBTI6ybN5dNqv95DJRMxkArkgup8sbF8KzHHz0Hq4o</recordid><startdate>20140120</startdate><enddate>20140120</enddate><creator>Aldana, Ana Agustina</creator><creator>Strumia, Miriam C.</creator><creator>Yudi, Lidia M.</creator><creator>Martinelli, Marisa</creator><creator>Juarez, Ana Valeria</creator><general>Elsevier Ltd</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>20140120</creationdate><title>Determination of the substitution degree of modified chitosan by cyclic voltammetry at the water/dichloroethane interface</title><author>Aldana, Ana Agustina ; Strumia, Miriam C. ; Yudi, Lidia M. ; Martinelli, Marisa ; Juarez, Ana Valeria</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c500t-f37e22c433e76eef64ec8d3e10cf2d60d8bf2b9317271916f421fc4e15cfee363</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Adsorbents</topic><topic>Cationic</topic><topic>cationic polyelectrolytes</topic><topic>Charge</topic><topic>Chitosan</topic><topic>Chlorides</topic><topic>Desorption</topic><topic>Dichloroethane</topic><topic>Joining</topic><topic>Liquid/liquid interfaces</topic><topic>quaternized chitosan</topic><topic>Voltammetry</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Aldana, Ana Agustina</creatorcontrib><creatorcontrib>Strumia, Miriam C.</creatorcontrib><creatorcontrib>Yudi, Lidia M.</creatorcontrib><creatorcontrib>Martinelli, Marisa</creatorcontrib><creatorcontrib>Juarez, Ana Valeria</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Electrochimica acta</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Aldana, Ana Agustina</au><au>Strumia, Miriam C.</au><au>Yudi, Lidia M.</au><au>Martinelli, Marisa</au><au>Juarez, Ana Valeria</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Determination of the substitution degree of modified chitosan by cyclic voltammetry at the water/dichloroethane interface</atitle><jtitle>Electrochimica acta</jtitle><date>2014-01-20</date><risdate>2014</risdate><volume>117</volume><spage>534</spage><epage>540</epage><pages>534-540</pages><issn>0013-4686</issn><eissn>1873-3859</eissn><abstract>The electrochemical behavior of the cationic polymer chitosan-gtmac (Ch-GTMAC), at the polarized water/1,2-dichloroethane interface was studied. This polymer was obtained by nucleophilic reaction of chitosan (Ch) with glycidyltrimethylammonium chloride groups (GTMAC). The voltammetric response was found to be dependent on the concentration of the polymer, on pH of the aqueous phase, and on the nature of the organic electrolyte. The results suggest a weak adsorption of the polymer coupled to the transfer towards the organic phase. Desorption process is quasi-reversible, and there is not interaction between adsorbents. From the analysis of desorption charge, it was possible to determine the substitution degree of the polymer</abstract><pub>Elsevier Ltd</pub><doi>10.1016/j.electacta.2013.11.146</doi><tpages>7</tpages><oa>free_for_read</oa></addata></record> |
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subjects | Adsorbents Cationic cationic polyelectrolytes Charge Chitosan Chlorides Desorption Dichloroethane Joining Liquid/liquid interfaces quaternized chitosan Voltammetry |
title | Determination of the substitution degree of modified chitosan by cyclic voltammetry at the water/dichloroethane interface |
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