基于脂肪族聚酯和环糊精包络物的新型生物降解材料的构造、物性及应用.pdfVIP

基于脂肪族聚酯与环糊精包络物的新型生物降解材料的 构造、物性及应用 董同力嘎 内蒙古农业大学食品科学与工程学院，内蒙古呼和浩特市赛罕区昭乌达路306号，010018 本论文将着重研究了基于环糊精-聚酯包络物的新型可降解材料的合成与应用，主要涉及 复合材料的结晶行为，形态和物性的改善。详细研究了聚酯分子与环糊精络合物的空间位阻 效应和分子间的相互作用力及其发生络合条件，如客体高分子的分子量，溶剂，溶剂中的浓 度等。并充分说明了环糊精对降解聚酯材料的快速成核机制及控制晶型机制，加快和优化了 聚酯材料的加工性能。 Structures,PhysicalPropertiesandApplicationsofAliphatic Polyester-CyclodextrinInclusionComplexesasNovelBiodegradable Materials DONGTungalag1 1.CollegeofFoodScienceandEngineering,InnerMongoliaAgriculturalUniversity,Huhhot 010018 Abstract: Thisworkfocusedonthealiphaticpolyester-cyclodextrininclusioncomplexesasanovel biodegradablematerial,andmainlyconcernedthecrystallizationbehavior,1-3morphologies4and mechanicalreinforcement5ofbiodegradablealiphaticpolyesterusingcyclodextrin(CD)asadditive. DuetotheCDsarenaturalproductsandtheyaresafetyandenvironmentfriendly,andfurthermore theirnucleationabilityonthecrystallizationofaliphaticpolyestersiscomparabletothoseof conventionalnucleationagents.Theexperimentalresultsshownthatthenucleationabilityofα-CD onthecrystallizationofthepolymeriscomparabletothatofthecommerciallyavailablenucleating agent,suchastalc.Itisfoundthattheα-CD-ICofagivenpolymercouldeffectivelyenhancethe crystallizationofpolymeritself,demonstratingthattheα-CDinthecomplexstateismoreeffective forpromotingthecrystallizationofpolymerthanforthefreestateα-CD.Thenucleationcapability ofα-CD-polymerICwasgreatlyaffectedbyguestpolymer,host-gueststoichiometryandmolecular weightofguestpolymer. Keywords:biodegradablepolymer; cyclodextrin; inclusioncomplex; nucleation