پديد آورنده :
نعماني، شكوفه
عنوان :
عامل دار كردن سطح نانو ذرات زير كونيوم اكسيد با سيتريك اسيد و پلي ﴿وينيل الكل﴾ به عنوان اصلاح كننده هاي زيست ايمن و كاربرد آنها براي سنتز نانو كامپوزيت هاي جديد زيست سازگار بر پايه پلي ﴿آميد-ايميد﴾ حاوي قطعات L- لوسين
مقطع تحصيلي :
كارشناسي ارشد
گرايش تحصيلي :
شيمي -پليمر
محل تحصيل :
اصفهان: دانشگاه صنعتي اصفهان، دانشكده شيمي
صفحه شمار :
[چهارده]،63ص.: مصور،جدول،نمودار
يادداشت :
ص.ع.به فارسي و انگليسي
استاد راهنما :
شادپور ملك پور، محمد ديناري
استاد مشاور :
حسن حدادزاده
توصيفگر ها :
نانو ذرات كونيا , اصلاح سطحي
تاريخ نمايه سازي :
93/12/17
استاد داور :
فاطمه داور، صديقه برهاني
چكيده انگليسي :
64 Surface functionalization of ZrO2 nanoparticles with citric acid and poly vinyl alcohol as bio safe modifiers and their employment for the synthesis of new biocompatible nanocomposites based on poly amide imide containing L leucine moieties Shekofeh Neamani sh neamani@g mail com Department of Chemistry Isfahan University of Technology Isfahan 84156 83111 I R IranDegree M Sc Language FarsiSupervisors Prof Shadpour Mallakpour E mail mallak@cc iut ac ir mallak777@yahoo com mallakpour84@alumni ufl edu Mohammad Dinari E mail dinari@cc iut ac irAbstract In the first study the optically active nanocomposites NCs based on poly amide imide PAI and zirconium oxide ZrO2 inorganic nanoparticles NPs were fabricated throughthe ultrasonic process At first to prevent the agglomeration of ZrO2 NPs in the polymermatrix the surface of ZrO2 NPs was modified with citric acid CA in the basic medium asa biocompatible modifier Then the synthesized PAI was reinforced with modified NPsand PAI ZrO2 CA NCs were synthesized by ultrasonic irradiation The PAI was preparedby a green and simple polycondensation reaction of trimellitylimido L leucine with 4 4 diaminodiphenylsulfone using of triphenyl phosphite and molten tetra n butylammoniumbromide as green medium The Modified NPs and synthesized NCs were charaterized byFT IR FE SEM TEM XRD TGA and AFM The FE SEM and TEM images showed thatthe modified NPs rather uniformly dispersed in the polymer matrix The TGA data impliedthat the obtained NCs have more thermal stability than pure PAI In the second study inorder to synthesis of biocompatible NCs based on chiral PAI and ZrO2 NPs The surface ofNPs was modified with poly vinyl alcohol PVA as a biodegradable and biocompatiblemodifier Then the product was embedded into the PAI matrix The Modified NPs andobtained NCs were characterized by various techniques such as FT IR XRD TEM FE SEM and TGA FT IR and TGA confirmed the coupling of PVA on the surface ofZrO2 NPs TEM images showed that the modified NPs are core shell in shape actuallyZrO2 NPs are covered by a nanometer thick layer of PVA about 10 nm that obviouslyconfirms the coating of PVA on the surface of ZrO2 NPs Keyword ZrO2 nanoparticles Surface modi cation Citric acid Poly vinyl alcohol Biocompatible Bio safe poly amide imide Nanocomposite
استاد راهنما :
شادپور ملك پور، محمد ديناري
استاد مشاور :
حسن حدادزاده
استاد داور :
فاطمه داور، صديقه برهاني
