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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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纤维素月桂酸酯的制备及其结构和性能表征
DOI: 10.3969/j.jssn.1000-2006.2011.04.019, PP. 91-95
Keywords: 纤维素,月桂酰氯,酯化,取代度,得率
Abstract:
在均相体系下，以微晶纤维素为原料，以月桂酰氯为酯化试剂，吡啶为催化脱酸剂制备纤维素月桂酸酯，研究了酯化试剂用量、反应温度、反应时间对纤维素月桂酸酯取代度和得率的影响，确定了合成纤维素月桂酸酯的适宜条件为：酰氯用量1？6mol（基于纤维素上羟基摩尔数），反应温度100℃，反应时间10h，此时纤维素月桂酸酯的得率为310？8%，取代度达2？48。采用红外光谱和核磁共振氢谱对纤维素月桂酸酯的结构进行了表征，证明了纤维素已发生酯化反应。接触角实验结果表明，所得纤维素月桂酸酯的接触角随取代度增加而增加，取代度>1？6时产物具有极强的疏水性。
| [1] | antovag,vasvasovap,zlatanovm.studiesuponthesynthesisofcellulosestearateundermicrowaveheating[j].carbohydrpolym,2004,57:131-134.
|
| [2] | heinzet，liebertt.unconventionalmethodsincellulosefunctionalization[j].progpolymsci,2001,26(9):1689-1762.
|
| [3] | 程博闻.纤维素在licl/极性溶剂体系中溶解性能的研究[j].天津纺织工学院学报,2000,19(2):1-3.
|
| [4] | wangp，taoby.synthesisandcharacterizationoflong？chainfattyacidcelluloseesters(face)[j].japplpolymsci,1999,52:755-761.
|
| [5] | goursonc,benhaddour,granetr,etal.valorizationofmaizebrantoobtainbiodegradableplasticfilms[j].japplpolymsci,1999,74:3040-3045.
|
| [6] | heinzetj,glasserwg.cellulosederivativesmodification,characterization,andnanostructures[j].acssymposiumseries,1998,688(3):38-60.
|
| [7] | kapusniakj,siemionp.thermalreactionsofstarchwithlong？chainunsaturatedfattyacidspart2.linoleicacid[j].journaloffoodengineering,2007,78:323-332.
|
| [8] | 门爽,王文俊,邵自强,等.长链纤维素酯在dmac/licl中的均相制备及表征[j].高分子材料科学与工程,2008,24(12):62-65.
|
| [9] | xuf,jiangjx,sunrc,etal.rapidesterificationofwheatstrawhemicellulosesinducedbymicrowaveirradiation[j].carbohydratepolymers,2008,73:612-620.
|
| [10] | songqiang,yangyiqin.preparationofcelluloseesterwithhigherfattyacidanditscharacterization[c]//guangzhou:researchprogressinpaperindustryandbiorefinery(4thisetpp),2010.
|
| [11] | 许岗,杨觉明,陈平.疏水复合薄膜接触角的测定[j].西安工业学院学报,2004,24(1):65-69.
|
| [12] | pasquinid,belgacemmn,gandinia,etal.surfaceesterificationofcellulosefibers:characterizationbydriftandcontactanglemeasurements[j].journalofcolloidandinterfacescience,2006,295:79-83.
|
| [13] | boufis,belgacemmn.modifiedcellulosefibresforadsorptionofdissolvedorganicsolutes[j].cellulose,2006,13:81-94.
|
| [14] | freirecsr,silvestreajd,netocp,etal.anefficientmethodfordeterminationofthedegreeofsubstitutionofcelluloseestersoflongchainaliphaticacids[j].cellulose,2005,12:449-458.
|
| [15] | satgec,verneuilb,branlandp,etal.rapidhomogeneousesterificationofcelluloseinducedbymicrowaveirradiation[j].carbohydratepolymers,2002,49:373-376.
|
| [16] | 宋缪毅,马凤国,邵自强,等.共反应剂法合成纤维素高级脂肪酸酯[j].合成化学,2001,9(6):543-546.
|
| [17] | 哈丽丹？买买提,阿布力米提,库尔班江？肉孜,等.月桂酸纤维素酯的均相法合成[j].化工进展,2010,29(7):1276-1280.
|
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