A simple preparation of N-acetylated chitosan highly soluble(4)

Inconclusion,itwasrevealedthathighlysolublehalfN-acetylatedchitosancouldbepreparedthroughasimpleandimprovedmethod:reductionofthemolecularweightof

274N.Kubotaetal./CarbohydrateResearch324(2000)268–274

chitosan,followedbyN-acetylationinaqueousaceticacid.ThehalfN-acetylatedchitosanthusobtainedhadarandomdistribu-tionoftheN-acetylgroups,andthelowerthemolecularweight,thehigherthewatersolubil-ity.Furthermore,thesolubilityofthehalfN-acetylatedchitosaninaqueousorganicsol-ventsalsoincreasedwithdecreasingmolecularweight.References

[1]E.R.Pariser,D.P.Lombardi,ChitinSourcebook,Wiley,

Chichester,1989.

[2]S.Dumitriu,Polysaccharides,MarcelDekker,New

York,1998.

[3]N.Kubota,Bull.Chem.Soc.Jpn.,66(1993)1807–1812.[4]N.Kubota,Y.Kikuchi,Y.Mizuhara,T.Ishihara,Y.

Takita,J.Appl.Polym.Sci.,50(1993)1665–1670.

[5]N.Kubota,E.Kai,Y.Eguchi,Maku,21(1996)386–

393.[6]T.Sannan,K.Kurita,Y.Iwakura,Makromol.Chem.,

177(1976)3589–3600.

[7]K.Kurita,T.Sannan,Y.Iwakura,Makromol.Chem.,

178(1977)3197–3202.

[8]K.Kurita,Y.Koyoma,S.Nishimura,M.Kamiya,

Chem.Lett.,(1989)1597–1598.

[9]S.Aiba,Int.J.Biol.Macromol.,11(1989)249–252.[10]Y.Kawamura,H.Ikebe,I.Kurahashi,H.Seo,S.Naka-jima,KokaiTokkyoKoho,61–40337(1986).

[11]K.Kurita,S.Chikaoka,M.Kamiya,Y.Koyama,Bull.

Chem.Soc.Jpn.,61(1988)927–930.

[12]N.Kubota,Y.Eguchi,Polym.J.,29(1997)123–127.[13]A.Hirai,H.Odani,A.Nakajima,Polym.Bull.,26(1991)

87–94.[14]K.M.Va rum,M.W.Anthonsen,H.Grasdalen,O.Smid-srod,Carbohydr.Res.,211(1991)17–23.

[15]M.Rinaudo,P.LeDung,C.Gey,M.Milas,Int.J.Biol.

Macromol.,14(1992)122–128.

[16]A.Domard,C.Gey,M.Rinaudo,C.Terrassin,Int.J.

Biol.Macromol.,9(1987)233–237.[17]K.M.Va rum,M.H.Ottoy,O.Smidsrod,Carbohydr.

Polym.,25(1994)65–70.

[18]Y.Kikuchi,N.Kubota,Bull.Chem.Soc.Jpn.,61(1988)

2943–2947.

[19]N.Kubota,G.Konaka,Y.Eguchi,Sen’iGakkaishi,54

(1998)212–218.

.

百度搜索“77cn”或“免费范文网”即可找到本站免费阅读全部范文。收藏本站方便下次阅读，免费范文网，提供经典小说医药卫生A simple preparation of N-acetylated chitosan highly soluble(4)在线全文阅读。