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Interactions between cellulose and N-methylmorpholine- N-oxide
Cellulose II structure was obtained when cellulose precipitated from NMMO/H 2O/cellulose solution by adding excess water. The regenerated cellulose was three times more reactive than that of untreated cellulose in hydrolysis reactions. X-ray diffraction (XRD), 13C Solid-State Nuclear Magnetic Resona...
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Published in: | Carbohydrate polymers 2007-01, Vol.67 (1), p.97-103 |
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container_title | Carbohydrate polymers |
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creator | Zhao, Haibo Kwak, Ja Hun Wang, Yong Franz, James A. White, John M. Holladay, Johnathan E. |
description | Cellulose II structure was obtained when cellulose precipitated from NMMO/H
2O/cellulose solution by adding excess water. The regenerated cellulose was three times more reactive than that of untreated cellulose in hydrolysis reactions. X-ray diffraction (XRD),
13C Solid-State Nuclear Magnetic Resonance (NMR) and Fourier Transform Infrared (FTIR) Spectroscopy were used to investigate interactions between
N-methylmorpholine-
N-oxide (NMMO) and cellulose. Cellulose NMMO solid mixtures were heated to various temperatures and cooled to room temperature. The presence of cellulose in cellulose NMMO solid mixture decreased the NMMO melting point by 80–110
°C and hampered NMMO recrystallizing during cooling process. NMMO crystal structure collapsed between 70 and 100
°C in cellulose NMMO mixture and became very mobile (liquid like form). Mobile NMMO molecules transformed crystalline cellulose into amorphous cellulose. When the cellulose NMMO mixture was heated to 150
°C, cellulose started to replace H
2O molecules that hydrogen-bonded to NMMO. Our FTIR spectra results suggest that released H
2O molecules exist as both adsorbed H
2O molecules on cellulose and unbound H
2O molecules that are physically confined in cellulose matrix. |
doi_str_mv | 10.1016/j.carbpol.2006.04.019 |
format | article |
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2O/cellulose solution by adding excess water. The regenerated cellulose was three times more reactive than that of untreated cellulose in hydrolysis reactions. X-ray diffraction (XRD),
13C Solid-State Nuclear Magnetic Resonance (NMR) and Fourier Transform Infrared (FTIR) Spectroscopy were used to investigate interactions between
N-methylmorpholine-
N-oxide (NMMO) and cellulose. Cellulose NMMO solid mixtures were heated to various temperatures and cooled to room temperature. The presence of cellulose in cellulose NMMO solid mixture decreased the NMMO melting point by 80–110
°C and hampered NMMO recrystallizing during cooling process. NMMO crystal structure collapsed between 70 and 100
°C in cellulose NMMO mixture and became very mobile (liquid like form). Mobile NMMO molecules transformed crystalline cellulose into amorphous cellulose. When the cellulose NMMO mixture was heated to 150
°C, cellulose started to replace H
2O molecules that hydrogen-bonded to NMMO. Our FTIR spectra results suggest that released H
2O molecules exist as both adsorbed H
2O molecules on cellulose and unbound H
2O molecules that are physically confined in cellulose matrix.</description><identifier>ISSN: 0144-8617</identifier><identifier>EISSN: 1879-1344</identifier><identifier>DOI: 10.1016/j.carbpol.2006.04.019</identifier><identifier>CODEN: CAPOD8</identifier><language>eng</language><publisher>Oxford: Elsevier Ltd</publisher><subject>08 HYDROGEN ; Applied sciences ; CELLULOSE ; Cellulose and derivatives ; CRYSTAL STRUCTURE ; Crystallization ; Environmental Molecular Sciences Laboratory ; Exact sciences and technology ; HEATING ; HYDROGEN ; HYDROLYSIS ; MATERIALS SCIENCE ; MIXTURES ; N-Methylmorpholine- N-oxide ; Natural polymers ; NMMO ; NMR ; NUCLEAR MAGNETIC RESONANCE ; Phase change ; Physicochemistry of polymers ; SPECTROSCOPY ; WATER ; X-RAY DIFFRACTION ; XRD</subject><ispartof>Carbohydrate polymers, 2007-01, Vol.67 (1), p.97-103</ispartof><rights>2006 Elsevier Ltd</rights><rights>2007 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c431t-c5f71a3c0a24deb287a1bcc2133048cc74827861e733881dbb5fff31e9d90dd93</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,780,784,885,27924,27925</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=18400280$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.osti.gov/biblio/920539$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Zhao, Haibo</creatorcontrib><creatorcontrib>Kwak, Ja Hun</creatorcontrib><creatorcontrib>Wang, Yong</creatorcontrib><creatorcontrib>Franz, James A.</creatorcontrib><creatorcontrib>White, John M.</creatorcontrib><creatorcontrib>Holladay, Johnathan E.</creatorcontrib><creatorcontrib>Pacific Northwest National Lab. (PNNL), Richland, WA (United States). Environmental Molecular Sciences Lab. (EMSL)</creatorcontrib><title>Interactions between cellulose and N-methylmorpholine- N-oxide</title><title>Carbohydrate polymers</title><description>Cellulose II structure was obtained when cellulose precipitated from NMMO/H
2O/cellulose solution by adding excess water. The regenerated cellulose was three times more reactive than that of untreated cellulose in hydrolysis reactions. X-ray diffraction (XRD),
13C Solid-State Nuclear Magnetic Resonance (NMR) and Fourier Transform Infrared (FTIR) Spectroscopy were used to investigate interactions between
N-methylmorpholine-
N-oxide (NMMO) and cellulose. Cellulose NMMO solid mixtures were heated to various temperatures and cooled to room temperature. The presence of cellulose in cellulose NMMO solid mixture decreased the NMMO melting point by 80–110
°C and hampered NMMO recrystallizing during cooling process. NMMO crystal structure collapsed between 70 and 100
°C in cellulose NMMO mixture and became very mobile (liquid like form). Mobile NMMO molecules transformed crystalline cellulose into amorphous cellulose. When the cellulose NMMO mixture was heated to 150
°C, cellulose started to replace H
2O molecules that hydrogen-bonded to NMMO. Our FTIR spectra results suggest that released H
2O molecules exist as both adsorbed H
2O molecules on cellulose and unbound H
2O molecules that are physically confined in cellulose matrix.</description><subject>08 HYDROGEN</subject><subject>Applied sciences</subject><subject>CELLULOSE</subject><subject>Cellulose and derivatives</subject><subject>CRYSTAL STRUCTURE</subject><subject>Crystallization</subject><subject>Environmental Molecular Sciences Laboratory</subject><subject>Exact sciences and technology</subject><subject>HEATING</subject><subject>HYDROGEN</subject><subject>HYDROLYSIS</subject><subject>MATERIALS SCIENCE</subject><subject>MIXTURES</subject><subject>N-Methylmorpholine- N-oxide</subject><subject>Natural polymers</subject><subject>NMMO</subject><subject>NMR</subject><subject>NUCLEAR MAGNETIC RESONANCE</subject><subject>Phase change</subject><subject>Physicochemistry of polymers</subject><subject>SPECTROSCOPY</subject><subject>WATER</subject><subject>X-RAY DIFFRACTION</subject><subject>XRD</subject><issn>0144-8617</issn><issn>1879-1344</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2007</creationdate><recordtype>article</recordtype><recordid>eNqFkE1LAzEQhoMoWKs_QagHj7tONulu9qJI8aNQ9KLnkJ3M0pRtUpL1o__eXSp4dC4Dw_POvPMydskh58DLm02OJja70OUFQJmDzIHXR2zCVVVnXEh5zCbApcxUyatTdpbSBoYqOUzY7dL3FA32Lvg0a6j_IvIzpK776EKimfF29pJtqV_vu22Iu3XonKdsmIVvZ-mcnbSmS3Tx26fs_fHhbfGcrV6flov7VYZS8D7DeVtxIxBMIS01haoMbxALLgRIhVhJVVSDO6qEUIrbppm3bSs41bYGa2sxZVeHvSH1Tid0PeEag_eEva4LmIuRmR8YjCGlSK3eRbc1ca856DEovdG_QekxKA1SD0ENuuuDbmcSmq6NxqNLf2IlAQoFA3d34Gh49NNRHH2QR7IujjZscP9c-gGZl4Dr</recordid><startdate>20070102</startdate><enddate>20070102</enddate><creator>Zhao, Haibo</creator><creator>Kwak, Ja Hun</creator><creator>Wang, Yong</creator><creator>Franz, James A.</creator><creator>White, John M.</creator><creator>Holladay, Johnathan E.</creator><general>Elsevier Ltd</general><general>Elsevier Science</general><general>Applied Science Direct</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>OTOTI</scope></search><sort><creationdate>20070102</creationdate><title>Interactions between cellulose and N-methylmorpholine- N-oxide</title><author>Zhao, Haibo ; Kwak, Ja Hun ; Wang, Yong ; Franz, James A. ; White, John M. ; Holladay, Johnathan E.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c431t-c5f71a3c0a24deb287a1bcc2133048cc74827861e733881dbb5fff31e9d90dd93</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2007</creationdate><topic>08 HYDROGEN</topic><topic>Applied sciences</topic><topic>CELLULOSE</topic><topic>Cellulose and derivatives</topic><topic>CRYSTAL STRUCTURE</topic><topic>Crystallization</topic><topic>Environmental Molecular Sciences Laboratory</topic><topic>Exact sciences and technology</topic><topic>HEATING</topic><topic>HYDROGEN</topic><topic>HYDROLYSIS</topic><topic>MATERIALS SCIENCE</topic><topic>MIXTURES</topic><topic>N-Methylmorpholine- N-oxide</topic><topic>Natural polymers</topic><topic>NMMO</topic><topic>NMR</topic><topic>NUCLEAR MAGNETIC RESONANCE</topic><topic>Phase change</topic><topic>Physicochemistry of polymers</topic><topic>SPECTROSCOPY</topic><topic>WATER</topic><topic>X-RAY DIFFRACTION</topic><topic>XRD</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zhao, Haibo</creatorcontrib><creatorcontrib>Kwak, Ja Hun</creatorcontrib><creatorcontrib>Wang, Yong</creatorcontrib><creatorcontrib>Franz, James A.</creatorcontrib><creatorcontrib>White, John M.</creatorcontrib><creatorcontrib>Holladay, Johnathan E.</creatorcontrib><creatorcontrib>Pacific Northwest National Lab. (PNNL), Richland, WA (United States). Environmental Molecular Sciences Lab. (EMSL)</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>OSTI.GOV</collection><jtitle>Carbohydrate polymers</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zhao, Haibo</au><au>Kwak, Ja Hun</au><au>Wang, Yong</au><au>Franz, James A.</au><au>White, John M.</au><au>Holladay, Johnathan E.</au><aucorp>Pacific Northwest National Lab. (PNNL), Richland, WA (United States). Environmental Molecular Sciences Lab. (EMSL)</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Interactions between cellulose and N-methylmorpholine- N-oxide</atitle><jtitle>Carbohydrate polymers</jtitle><date>2007-01-02</date><risdate>2007</risdate><volume>67</volume><issue>1</issue><spage>97</spage><epage>103</epage><pages>97-103</pages><issn>0144-8617</issn><eissn>1879-1344</eissn><coden>CAPOD8</coden><abstract>Cellulose II structure was obtained when cellulose precipitated from NMMO/H
2O/cellulose solution by adding excess water. The regenerated cellulose was three times more reactive than that of untreated cellulose in hydrolysis reactions. X-ray diffraction (XRD),
13C Solid-State Nuclear Magnetic Resonance (NMR) and Fourier Transform Infrared (FTIR) Spectroscopy were used to investigate interactions between
N-methylmorpholine-
N-oxide (NMMO) and cellulose. Cellulose NMMO solid mixtures were heated to various temperatures and cooled to room temperature. The presence of cellulose in cellulose NMMO solid mixture decreased the NMMO melting point by 80–110
°C and hampered NMMO recrystallizing during cooling process. NMMO crystal structure collapsed between 70 and 100
°C in cellulose NMMO mixture and became very mobile (liquid like form). Mobile NMMO molecules transformed crystalline cellulose into amorphous cellulose. When the cellulose NMMO mixture was heated to 150
°C, cellulose started to replace H
2O molecules that hydrogen-bonded to NMMO. Our FTIR spectra results suggest that released H
2O molecules exist as both adsorbed H
2O molecules on cellulose and unbound H
2O molecules that are physically confined in cellulose matrix.</abstract><cop>Oxford</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.carbpol.2006.04.019</doi><tpages>7</tpages></addata></record> |
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language | eng |
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source | ScienceDirect Journals |
subjects | 08 HYDROGEN Applied sciences CELLULOSE Cellulose and derivatives CRYSTAL STRUCTURE Crystallization Environmental Molecular Sciences Laboratory Exact sciences and technology HEATING HYDROGEN HYDROLYSIS MATERIALS SCIENCE MIXTURES N-Methylmorpholine- N-oxide Natural polymers NMMO NMR NUCLEAR MAGNETIC RESONANCE Phase change Physicochemistry of polymers SPECTROSCOPY WATER X-RAY DIFFRACTION XRD |
title | Interactions between cellulose and N-methylmorpholine- N-oxide |
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