高取代度淀粉醋酸酯与淀粉接枝pma作为生物降解材料的改性研究

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1、摘要本辑巍瓣嚣瓣簿程罨残～耱爱囊秘簿瓣爨料謇砉瓣，代癸臻蘸奁一次羧缺镶蠡、毯装糖辩莓镄蠛大爨筏耀戆避鼹爨料粼鼹，斌藤藏辍邋爆爨料壤雾物潦袋靛环蕊污染鲻藤。漾越嚣蕊疆巍了淀耪程激戆簿辩耱辩壤皱懿舞黪德攀改彀产秘，麓取代壤淀粉醋酸黼颡淀粉搂技PMA。潺遵实验礴究，确爨了辩警繁磺黢(TPS)魏潮罄舞崴代魔淀狳醋酸酪鹣含矮脊靛熬磷德麓。懑辩耨擦骢“予法”裂备魇成方式，大黼魔盼鼯羝了垒产娥本，隽鬻墩捉发淀耪靛黢黪粒工簸纯生产键逶了条髂。安骏旗窥了“予法”割餐熬袋徒茨寂祭髂，舞对胡褥煞菇凝找瀵淀粉骥簸熬滋黪了瀛燮魏缝测试，凝瀵薅蒋滚麓滠痰篱，融凌大，蘸熔融按凑黪爨臆襁，趣王袋毽

2、存蹙鼹搂；安骏茨麓酸稚较(CAN)炎每l发裁，谗谂了凌技菸聚簿箴，零，淀耪麓鬣魄、警l发麓浓澄襄犊较肇赫翅黛鼯接壤爨蘩爱墩及箕产黪拣壤媳黟蛹，确宠了掰餐淀黪羧技PMA静会避爱藏条铃。邋避熔融捺寝蜜验，笈凌雠褥蕊淀糙接技PMA鬃离一囊豹热鬻健魏锻壤，毽蠢予糠承稼鲶鬻誉够，翱王遵耧审餐弱发黧焦纯。渫熬述瓣麓裴我瀵淀耪戆羧爨窝浚耱羧攘PMA避簿了=羧潋姓鲍尝试。装溅殴蠖黻鬻赣耪豢毪铰麓，莛滋磐馥壤举壤憋。辩淀辫续棱pMA避行不黻佬辑菠褴，褥瓤靛接棱～鑫躐纯淀狳程熬秀攀橼震鞘艇王瞧穗主帮程一宠穗黢懿褪辫。戴豁，瓣较技～己酸纯淀粉还进行了骧黢锻续究敬蕊静麟究，羧麓娄凝羧钙添瓣

3、髫必碡嵇％发毒辩，剪骥获褥簇辩较鲑戆鬻赫疆躞翔麟襞{枣长率，黼辩降酝了戏零。燕鹊游$囊秘辩麟；淀粉；淀粉精黢繇；彀代壤；不瓣爨；淀粉装彼PMA；接棱一己鼗纯ABSTRACTThestudyaimsatfindingacompletelybiodegradablematerialasasubstituteforgeneralplasticslargelyusedinsnackpacketandpacking，inordertoalleviatethepollutioncausedbycastoffsofthisgeneralplastics．Thepaperplace

4、demphasesondiscussingstarchacetateofhighdegreeofsubstitutionandstarchgraftPMA，aschemicalmodificationderivatesofstarchinthefieldofbiodegradablematerials．ThepaperchoseP-toluenesulfonicacid(TPS)astheoptimumcatalystofpreparingstarchacetateofhighdegreeofsubstitution，andputforwardanoveltechn

5、icsof“drymethod”thatresultedinaratherdecreaseincostandaadvantageforindustrializedproductionofit．Theoptimumreactionconditionsof“drymethod”wasdetermined，andthroughrheologyanalysisonthepreparedstarchacetateofhighdegreeofsubstitution，itfoundthatthefluidtemperatureandtheviscosityofthemeltwe

6、reratherhigh，andthereweresomedifficultiesinshapingduetothemeltexhibitedbrittle．Thepaperdiscussedtheeffectsonthereactionandthepropertiesofoutputbythemethodofgraftcopolymerization，theproportionofwatertostarch，theconcentrationofinitiatorandthedosageofmonomertakingammoniumeerienitrate(CAN)

7、asthecatalyst，anddeterminedtheappropriatereactionconditionsofsynthesizingstarch-g-PMA．Theexperimentofmeltingextrusionindicatedthatthepreparedstarch—g—PMAassumedsomethermalplasticityandtoughness，butitwasincidenttobeburntduringthecourseofprocessingduetohydrophobicitybeingnotenough．Thes