Thermal and morphological study of chitosan metal complexes
The synthesis of chitosan Schiff bases, N -benzylidene chitosan (CTB), 4-dimethylamino-benzylidene chitosan (CTDB) and 4-nitro-benzylidene chitosan (CTNB), and their interaction with Cu 2+ , Zn 2+ and Ni 2+ were studied. The content of metal ions was determined by atomic absorption spectrometry, and...
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| Veröffentlicht in: | Journal of thermal analysis and calorimetry 2017-07, Vol.129 (1), p.291-301 |
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| container_title | Journal of thermal analysis and calorimetry |
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| creator | Pereira, Fernanda Stuani Lanfredi, Silvania González, Eduardo René Pérez da Silva Agostini, Deuber Lincon Gomes, Homero Marques dos Santos Medeiros, Ricardo |
| description | The synthesis of chitosan Schiff bases,
N
-benzylidene chitosan (CTB), 4-dimethylamino-benzylidene chitosan (CTDB) and 4-nitro-benzylidene chitosan (CTNB), and their interaction with Cu
2+
, Zn
2+
and Ni
2+
were studied. The content of metal ions was determined by atomic absorption spectrometry, and the results showed that chitosan exhibited higher chelating capacity for the metal ions. Morphological changes of Schiff bases and complexes were demonstrated by SEM images. The presence of crystals attributed to copper sulfate adsorbed on the polymers surface was also observed, which indicates that part of the metal content is in the salt adsorbed and might influence in their further application studies. X-ray diffraction patterns showed that the formation of complexes resulted in the decrease in crystallinity. The thermal behavior of derivative and metal complexes were studied by thermogravimetric analysis, differential thermogravimetric analysis and differential scanning calorimetry. The results showed that the presence of new groups and metal ions bonded to chitosan affected their thermal stability. |
| doi_str_mv | 10.1007/s10973-017-6146-2 |
| format | Article |
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N
-benzylidene chitosan (CTB), 4-dimethylamino-benzylidene chitosan (CTDB) and 4-nitro-benzylidene chitosan (CTNB), and their interaction with Cu
2+
, Zn
2+
and Ni
2+
were studied. The content of metal ions was determined by atomic absorption spectrometry, and the results showed that chitosan exhibited higher chelating capacity for the metal ions. Morphological changes of Schiff bases and complexes were demonstrated by SEM images. The presence of crystals attributed to copper sulfate adsorbed on the polymers surface was also observed, which indicates that part of the metal content is in the salt adsorbed and might influence in their further application studies. X-ray diffraction patterns showed that the formation of complexes resulted in the decrease in crystallinity. The thermal behavior of derivative and metal complexes were studied by thermogravimetric analysis, differential thermogravimetric analysis and differential scanning calorimetry. The results showed that the presence of new groups and metal ions bonded to chitosan affected their thermal stability.</description><identifier>ISSN: 1388-6150</identifier><identifier>EISSN: 1588-2926</identifier><identifier>DOI: 10.1007/s10973-017-6146-2</identifier><language>eng</language><publisher>Dordrecht: Springer Netherlands</publisher><subject>Absorption spectroscopy ; Analytical Chemistry ; Atomic absorption analysis ; Chelation ; Chemical bonds ; Chemistry ; Chemistry and Materials Science ; Chitosan ; Coordination compounds ; Copper sulfate ; Crystallinity ; Differential scanning calorimetry ; Differential thermogravimetric analysis ; Diffraction patterns ; Heat measurement ; Inorganic Chemistry ; Measurement Science and Instrumentation ; Metal ions ; Metals ; Morphology ; Physical Chemistry ; Polymer Sciences ; Polymers ; Schiff bases ; Sulfates ; Thermal analysis ; Thermal stability ; Thermogravimetric analysis ; X-ray diffraction ; Zinc compounds</subject><ispartof>Journal of thermal analysis and calorimetry, 2017-07, Vol.129 (1), p.291-301</ispartof><rights>Akadémiai Kiadó, Budapest, Hungary 2017</rights><rights>COPYRIGHT 2017 Springer</rights><rights>Copyright Springer Science & Business Media 2017</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c469t-e565a098285d5ffbc145426cbe8407de65320e6797b1351386856ac2160532a13</citedby><cites>FETCH-LOGICAL-c469t-e565a098285d5ffbc145426cbe8407de65320e6797b1351386856ac2160532a13</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s10973-017-6146-2$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s10973-017-6146-2$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,776,780,27901,27902,41464,42533,51294</link.rule.ids></links><search><creatorcontrib>Pereira, Fernanda Stuani</creatorcontrib><creatorcontrib>Lanfredi, Silvania</creatorcontrib><creatorcontrib>González, Eduardo René Pérez</creatorcontrib><creatorcontrib>da Silva Agostini, Deuber Lincon</creatorcontrib><creatorcontrib>Gomes, Homero Marques</creatorcontrib><creatorcontrib>dos Santos Medeiros, Ricardo</creatorcontrib><title>Thermal and morphological study of chitosan metal complexes</title><title>Journal of thermal analysis and calorimetry</title><addtitle>J Therm Anal Calorim</addtitle><description>The synthesis of chitosan Schiff bases,
N
-benzylidene chitosan (CTB), 4-dimethylamino-benzylidene chitosan (CTDB) and 4-nitro-benzylidene chitosan (CTNB), and their interaction with Cu
2+
, Zn
2+
and Ni
2+
were studied. The content of metal ions was determined by atomic absorption spectrometry, and the results showed that chitosan exhibited higher chelating capacity for the metal ions. Morphological changes of Schiff bases and complexes were demonstrated by SEM images. The presence of crystals attributed to copper sulfate adsorbed on the polymers surface was also observed, which indicates that part of the metal content is in the salt adsorbed and might influence in their further application studies. X-ray diffraction patterns showed that the formation of complexes resulted in the decrease in crystallinity. The thermal behavior of derivative and metal complexes were studied by thermogravimetric analysis, differential thermogravimetric analysis and differential scanning calorimetry. The results showed that the presence of new groups and metal ions bonded to chitosan affected their thermal stability.</description><subject>Absorption spectroscopy</subject><subject>Analytical Chemistry</subject><subject>Atomic absorption analysis</subject><subject>Chelation</subject><subject>Chemical bonds</subject><subject>Chemistry</subject><subject>Chemistry and Materials Science</subject><subject>Chitosan</subject><subject>Coordination compounds</subject><subject>Copper sulfate</subject><subject>Crystallinity</subject><subject>Differential scanning calorimetry</subject><subject>Differential thermogravimetric analysis</subject><subject>Diffraction patterns</subject><subject>Heat measurement</subject><subject>Inorganic Chemistry</subject><subject>Measurement Science and Instrumentation</subject><subject>Metal ions</subject><subject>Metals</subject><subject>Morphology</subject><subject>Physical Chemistry</subject><subject>Polymer Sciences</subject><subject>Polymers</subject><subject>Schiff bases</subject><subject>Sulfates</subject><subject>Thermal analysis</subject><subject>Thermal stability</subject><subject>Thermogravimetric analysis</subject><subject>X-ray diffraction</subject><subject>Zinc compounds</subject><issn>1388-6150</issn><issn>1588-2926</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><recordid>eNp1kV9LwzAUxYMoOKcfwLeCTz503qRN2uDTGP4ZDASdzyFLb7uOtqlJB-7bm1Ef3IPkIZeT37k5cAi5pTCjANmDpyCzJAaaxYKmImZnZEJ5nsdMMnEe5iTMgnK4JFfe7wBASqAT8rjeomt1E-muiFrr-q1tbFWboPhhXxwiW0ZmWw_W6y5qcQi6sW3f4Df6a3JR6sbjze89JZ_PT-vFa7x6e1ku5qvYpEIOMXLBNcic5bzgZbkxNOUpE2aDeQpZgYInDFBkMtvQhIegIudCG0YFhBdNkym5G_f2zn7t0Q9qZ_euC18qKkGyPOM8DdRspCrdoKq70g5Om3AKbGtjOyzroM9TyUMexmUw3J8YAjPg91Dpvfdq-fF-ytKRNc5677BUvatb7Q6KgjoWoMYCVChAHQtQLHjY6PGB7Sp0f2L_a_oB8ACFUQ</recordid><startdate>20170701</startdate><enddate>20170701</enddate><creator>Pereira, Fernanda Stuani</creator><creator>Lanfredi, Silvania</creator><creator>González, Eduardo René Pérez</creator><creator>da Silva Agostini, Deuber Lincon</creator><creator>Gomes, Homero Marques</creator><creator>dos Santos Medeiros, Ricardo</creator><general>Springer Netherlands</general><general>Springer</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>ISR</scope></search><sort><creationdate>20170701</creationdate><title>Thermal and morphological study of chitosan metal complexes</title><author>Pereira, Fernanda Stuani ; Lanfredi, Silvania ; González, Eduardo René Pérez ; da Silva Agostini, Deuber Lincon ; Gomes, Homero Marques ; dos Santos Medeiros, Ricardo</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c469t-e565a098285d5ffbc145426cbe8407de65320e6797b1351386856ac2160532a13</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Absorption spectroscopy</topic><topic>Analytical Chemistry</topic><topic>Atomic absorption analysis</topic><topic>Chelation</topic><topic>Chemical bonds</topic><topic>Chemistry</topic><topic>Chemistry and Materials Science</topic><topic>Chitosan</topic><topic>Coordination compounds</topic><topic>Copper sulfate</topic><topic>Crystallinity</topic><topic>Differential scanning calorimetry</topic><topic>Differential thermogravimetric analysis</topic><topic>Diffraction patterns</topic><topic>Heat measurement</topic><topic>Inorganic Chemistry</topic><topic>Measurement Science and Instrumentation</topic><topic>Metal ions</topic><topic>Metals</topic><topic>Morphology</topic><topic>Physical Chemistry</topic><topic>Polymer Sciences</topic><topic>Polymers</topic><topic>Schiff bases</topic><topic>Sulfates</topic><topic>Thermal analysis</topic><topic>Thermal stability</topic><topic>Thermogravimetric analysis</topic><topic>X-ray diffraction</topic><topic>Zinc compounds</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Pereira, Fernanda Stuani</creatorcontrib><creatorcontrib>Lanfredi, Silvania</creatorcontrib><creatorcontrib>González, Eduardo René Pérez</creatorcontrib><creatorcontrib>da Silva Agostini, Deuber Lincon</creatorcontrib><creatorcontrib>Gomes, Homero Marques</creatorcontrib><creatorcontrib>dos Santos Medeiros, Ricardo</creatorcontrib><collection>CrossRef</collection><collection>Gale In Context: Science</collection><jtitle>Journal of thermal analysis and calorimetry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Pereira, Fernanda Stuani</au><au>Lanfredi, Silvania</au><au>González, Eduardo René Pérez</au><au>da Silva Agostini, Deuber Lincon</au><au>Gomes, Homero Marques</au><au>dos Santos Medeiros, Ricardo</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Thermal and morphological study of chitosan metal complexes</atitle><jtitle>Journal of thermal analysis and calorimetry</jtitle><stitle>J Therm Anal Calorim</stitle><date>2017-07-01</date><risdate>2017</risdate><volume>129</volume><issue>1</issue><spage>291</spage><epage>301</epage><pages>291-301</pages><issn>1388-6150</issn><eissn>1588-2926</eissn><abstract>The synthesis of chitosan Schiff bases,
N
-benzylidene chitosan (CTB), 4-dimethylamino-benzylidene chitosan (CTDB) and 4-nitro-benzylidene chitosan (CTNB), and their interaction with Cu
2+
, Zn
2+
and Ni
2+
were studied. The content of metal ions was determined by atomic absorption spectrometry, and the results showed that chitosan exhibited higher chelating capacity for the metal ions. Morphological changes of Schiff bases and complexes were demonstrated by SEM images. The presence of crystals attributed to copper sulfate adsorbed on the polymers surface was also observed, which indicates that part of the metal content is in the salt adsorbed and might influence in their further application studies. X-ray diffraction patterns showed that the formation of complexes resulted in the decrease in crystallinity. The thermal behavior of derivative and metal complexes were studied by thermogravimetric analysis, differential thermogravimetric analysis and differential scanning calorimetry. The results showed that the presence of new groups and metal ions bonded to chitosan affected their thermal stability.</abstract><cop>Dordrecht</cop><pub>Springer Netherlands</pub><doi>10.1007/s10973-017-6146-2</doi><tpages>11</tpages><oa>free_for_read</oa></addata></record> |
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| issn | 1388-6150 1588-2926 |
| language | eng |
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| source | Springer Nature - Complete Springer Journals |
| subjects | Absorption spectroscopy Analytical Chemistry Atomic absorption analysis Chelation Chemical bonds Chemistry Chemistry and Materials Science Chitosan Coordination compounds Copper sulfate Crystallinity Differential scanning calorimetry Differential thermogravimetric analysis Diffraction patterns Heat measurement Inorganic Chemistry Measurement Science and Instrumentation Metal ions Metals Morphology Physical Chemistry Polymer Sciences Polymers Schiff bases Sulfates Thermal analysis Thermal stability Thermogravimetric analysis X-ray diffraction Zinc compounds |
| title | Thermal and morphological study of chitosan metal complexes |
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