Maleoyl chitosan oxidized derivative as well as preparation method and application thereof
The invention provides a maleoyl chitosan oxidized derivative as well as a preparation method and application thereof. The preparation method comprises the following steps: adding chitosan into water, stirring, adding sodium carbonate, continuously stirring, adding maleic anhydride, stirring again,...
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| creator | ZUO JINHUA QIU XUFENG SHA LIZHENG YI CAIFU ZHAO HUIFANG |
| description | The invention provides a maleoyl chitosan oxidized derivative as well as a preparation method and application thereof. The preparation method comprises the following steps: adding chitosan into water, stirring, adding sodium carbonate, continuously stirring, adding maleic anhydride, stirring again, and adding 2, 2, 6, 6-tetramethylpiperidine-1-oxygen free radicals for reaction; centrifugally separating a reaction product, and collecting supernate; and adjusting the pH value of the supernate to 3-4, centrifuging and drying. According to the preparation method disclosed by the invention, water is used for replacing toxic acetone as a solvent, and the prepared maleoyl chitosan oxidized derivative is relatively high in substitution degree and has relatively good water solubility under neutral and alkaline conditions; the maleoyl chitosan oxidized derivative can be used for preparing dialyzing paper, a wet strength agent PAE which has potential harm to human bodies and the environment is replaced, and the prepared |
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The preparation method comprises the following steps: adding chitosan into water, stirring, adding sodium carbonate, continuously stirring, adding maleic anhydride, stirring again, and adding 2, 2, 6, 6-tetramethylpiperidine-1-oxygen free radicals for reaction; centrifugally separating a reaction product, and collecting supernate; and adjusting the pH value of the supernate to 3-4, centrifuging and drying. According to the preparation method disclosed by the invention, water is used for replacing toxic acetone as a solvent, and the prepared maleoyl chitosan oxidized derivative is relatively high in substitution degree and has relatively good water solubility under neutral and alkaline conditions; the maleoyl chitosan oxidized derivative can be used for preparing dialyzing paper, a wet strength agent PAE which has potential harm to human bodies and the environment is replaced, and the prepared</description><language>chi ; eng</language><subject>CHEMISTRY ; COMPOSITIONS BASED THEREON ; DERIVATIVES THEREOF ; IMPREGNATING OR COATING OF PAPER ; METALLURGY ; ORGANIC MACROMOLECULAR COMPOUNDS ; PAPER NOT OTHERWISE PROVIDED FOR ; PAPER-MAKING ; POLYSACCHARIDES ; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D ; PRODUCTION OF CELLULOSE ; PULP COMPOSITIONS ; TEXTILES ; THEIR PREPARATION OR CHEMICAL WORKING-UP ; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G</subject><creationdate>2022</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20220902&DB=EPODOC&CC=CN&NR=114989326A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20220902&DB=EPODOC&CC=CN&NR=114989326A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>ZUO JINHUA</creatorcontrib><creatorcontrib>QIU XUFENG</creatorcontrib><creatorcontrib>SHA LIZHENG</creatorcontrib><creatorcontrib>YI CAIFU</creatorcontrib><creatorcontrib>ZHAO HUIFANG</creatorcontrib><title>Maleoyl chitosan oxidized derivative as well as preparation method and application thereof</title><description>The invention provides a maleoyl chitosan oxidized derivative as well as a preparation method and application thereof. 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| subjects | CHEMISTRY COMPOSITIONS BASED THEREON DERIVATIVES THEREOF IMPREGNATING OR COATING OF PAPER METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PAPER NOT OTHERWISE PROVIDED FOR PAPER-MAKING POLYSACCHARIDES PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D PRODUCTION OF CELLULOSE PULP COMPOSITIONS TEXTILES THEIR PREPARATION OR CHEMICAL WORKING-UP TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G |
| title | Maleoyl chitosan oxidized derivative as well as preparation method and application thereof |
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