Ultra-microstructural features of perborate oxidized starch
ABSTRACT Ultrafine structures of low, medium, and highly oxidized starches, symbolized as LOS, MOS, and HOS, respectively, were thoroughly investigated. These oxidized starches were obtained by treatment of native starch (NS) with three different concentrations of sodium perborate (SPB). Thus, obtai...
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| creator | Hebeish, A. El-Rafie, M. H. Rabie, A. M. El-Sheikh, M. A. El-Naggar, Mehrez E. |
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Ultrafine structures of low, medium, and highly oxidized starches, symbolized as LOS, MOS, and HOS, respectively, were thoroughly investigated. These oxidized starches were obtained by treatment of native starch (NS) with three different concentrations of sodium perborate (SPB). Thus, obtained products were studied with respect to major chemical and fine physical characteristics vis‐a‐vis these of NS (a) acidic and reduced groups creation along with mode of association, (b) significant increase in solubility, and (c) outstanding decrease in apparent viscosity. Thermogravimetric analysis (TGA) revealed thermal stability of the said substrates follows order: HOS > MOS > LOS > NS. Scanning electron micrographs (SEM) showed polygonal or irregular shape with particle size ranging from 2 to 20 μ. After oxidation, the starch surface became rough and the edges lost their definiteness completely. In conclusion, SPB is an efficient oxidant to produce oxidized starches with useful characteristics, which advocate them to wide applications in textile sizing and medicinal domains. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014, 131, 40170. |
| doi_str_mv | 10.1002/app.40170 |
| format | Article |
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Ultrafine structures of low, medium, and highly oxidized starches, symbolized as LOS, MOS, and HOS, respectively, were thoroughly investigated. These oxidized starches were obtained by treatment of native starch (NS) with three different concentrations of sodium perborate (SPB). Thus, obtained products were studied with respect to major chemical and fine physical characteristics vis‐a‐vis these of NS (a) acidic and reduced groups creation along with mode of association, (b) significant increase in solubility, and (c) outstanding decrease in apparent viscosity. Thermogravimetric analysis (TGA) revealed thermal stability of the said substrates follows order: HOS > MOS > LOS > NS. Scanning electron micrographs (SEM) showed polygonal or irregular shape with particle size ranging from 2 to 20 μ. After oxidation, the starch surface became rough and the edges lost their definiteness completely. In conclusion, SPB is an efficient oxidant to produce oxidized starches with useful characteristics, which advocate them to wide applications in textile sizing and medicinal domains. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014, 131, 40170.</description><identifier>ISSN: 0021-8995</identifier><identifier>EISSN: 1097-4628</identifier><identifier>DOI: 10.1002/app.40170</identifier><identifier>CODEN: JAPNAB</identifier><language>eng</language><publisher>Hoboken, NJ: Blackwell Publishing Ltd</publisher><subject>Applied sciences ; biodegradable ; biopolymers and renewable polymers ; Electron micrographs ; Exact sciences and technology ; Materials science ; Natural polymers ; Physicochemistry of polymers ; Polymers ; polysaccharides ; properties and characterization ; Starch and polysaccharides</subject><ispartof>Journal of applied polymer science, 2014-04, Vol.131 (8), p.np-n/a</ispartof><rights>Copyright © 2013 Wiley Periodicals, Inc.</rights><rights>2015 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4390-988565b29cfe7a7070cb879b9faa2e7e7efd2c01690a667b2988b3dbb5eaa8823</citedby><cites>FETCH-LOGICAL-c4390-988565b29cfe7a7070cb879b9faa2e7e7efd2c01690a667b2988b3dbb5eaa8823</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Fapp.40170$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fapp.40170$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,777,781,1412,27905,27906,45555,45556</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=28293331$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Hebeish, A.</creatorcontrib><creatorcontrib>El-Rafie, M. H.</creatorcontrib><creatorcontrib>Rabie, A. M.</creatorcontrib><creatorcontrib>El-Sheikh, M. A.</creatorcontrib><creatorcontrib>El-Naggar, Mehrez E.</creatorcontrib><title>Ultra-microstructural features of perborate oxidized starch</title><title>Journal of applied polymer science</title><addtitle>J. Appl. Polym. Sci</addtitle><description>ABSTRACT
Ultrafine structures of low, medium, and highly oxidized starches, symbolized as LOS, MOS, and HOS, respectively, were thoroughly investigated. These oxidized starches were obtained by treatment of native starch (NS) with three different concentrations of sodium perborate (SPB). Thus, obtained products were studied with respect to major chemical and fine physical characteristics vis‐a‐vis these of NS (a) acidic and reduced groups creation along with mode of association, (b) significant increase in solubility, and (c) outstanding decrease in apparent viscosity. Thermogravimetric analysis (TGA) revealed thermal stability of the said substrates follows order: HOS > MOS > LOS > NS. Scanning electron micrographs (SEM) showed polygonal or irregular shape with particle size ranging from 2 to 20 μ. After oxidation, the starch surface became rough and the edges lost their definiteness completely. In conclusion, SPB is an efficient oxidant to produce oxidized starches with useful characteristics, which advocate them to wide applications in textile sizing and medicinal domains. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014, 131, 40170.</description><subject>Applied sciences</subject><subject>biodegradable</subject><subject>biopolymers and renewable polymers</subject><subject>Electron micrographs</subject><subject>Exact sciences and technology</subject><subject>Materials science</subject><subject>Natural polymers</subject><subject>Physicochemistry of polymers</subject><subject>Polymers</subject><subject>polysaccharides</subject><subject>properties and characterization</subject><subject>Starch and polysaccharides</subject><issn>0021-8995</issn><issn>1097-4628</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNp1kF1LwzAYhYMoOKcX_oOCCHrRLelHPvBqDrcJU3fhELwJb9MUO7u1Ji1u_nozO3chSC4SyHPO-56D0DnBPYJx0Ieq6kWYMHyAOgQL5kc04Ieo4_6Iz4WIj9GJtQuMCYkx7aCbeVEb8Je5MqWtTaPqxkDhZRrcQ1uvzLxKm6Q0UGuvXOdp_qVTz9Zg1NspOsqgsPpsd3fRfHT3PJz406fx_XAw9VUUCuwLzmMaJ4FQmWbAMMMq4UwkIgMINHMnSwOFCRUYKGUO5DwJ0ySJNQDnQdhFV61vZcqPRttaLnOrdFHASpeNldskIeVUhA69-IMuysas3HaSRIJwV0nMHHXdUtvQ1uhMViZfgtlIguW2RulqlD81OvZy5whWQZEZWKnc7gUBD9zYkDiu33KfeaE3_xvKwWz26-y3itzWer1XgHmXlIUsli-PYzmKbh9iRibyNfwGqNiPMg</recordid><startdate>20140415</startdate><enddate>20140415</enddate><creator>Hebeish, A.</creator><creator>El-Rafie, M. 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A. ; El-Naggar, Mehrez E.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4390-988565b29cfe7a7070cb879b9faa2e7e7efd2c01690a667b2988b3dbb5eaa8823</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Applied sciences</topic><topic>biodegradable</topic><topic>biopolymers and renewable polymers</topic><topic>Electron micrographs</topic><topic>Exact sciences and technology</topic><topic>Materials science</topic><topic>Natural polymers</topic><topic>Physicochemistry of polymers</topic><topic>Polymers</topic><topic>polysaccharides</topic><topic>properties and characterization</topic><topic>Starch and polysaccharides</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Hebeish, A.</creatorcontrib><creatorcontrib>El-Rafie, M. H.</creatorcontrib><creatorcontrib>Rabie, A. M.</creatorcontrib><creatorcontrib>El-Sheikh, M. A.</creatorcontrib><creatorcontrib>El-Naggar, Mehrez E.</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Journal of applied polymer science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Hebeish, A.</au><au>El-Rafie, M. H.</au><au>Rabie, A. M.</au><au>El-Sheikh, M. A.</au><au>El-Naggar, Mehrez E.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Ultra-microstructural features of perborate oxidized starch</atitle><jtitle>Journal of applied polymer science</jtitle><addtitle>J. Appl. Polym. 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Ultrafine structures of low, medium, and highly oxidized starches, symbolized as LOS, MOS, and HOS, respectively, were thoroughly investigated. These oxidized starches were obtained by treatment of native starch (NS) with three different concentrations of sodium perborate (SPB). Thus, obtained products were studied with respect to major chemical and fine physical characteristics vis‐a‐vis these of NS (a) acidic and reduced groups creation along with mode of association, (b) significant increase in solubility, and (c) outstanding decrease in apparent viscosity. Thermogravimetric analysis (TGA) revealed thermal stability of the said substrates follows order: HOS > MOS > LOS > NS. Scanning electron micrographs (SEM) showed polygonal or irregular shape with particle size ranging from 2 to 20 μ. After oxidation, the starch surface became rough and the edges lost their definiteness completely. In conclusion, SPB is an efficient oxidant to produce oxidized starches with useful characteristics, which advocate them to wide applications in textile sizing and medicinal domains. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014, 131, 40170.</abstract><cop>Hoboken, NJ</cop><pub>Blackwell Publishing Ltd</pub><doi>10.1002/app.40170</doi><tpages>9</tpages></addata></record> |
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| subjects | Applied sciences biodegradable biopolymers and renewable polymers Electron micrographs Exact sciences and technology Materials science Natural polymers Physicochemistry of polymers Polymers polysaccharides properties and characterization Starch and polysaccharides |
| title | Ultra-microstructural features of perborate oxidized starch |
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