پديد آورنده :
مرآتيان، شهرزاد
عنوان :
تهيه و شناسايي پلي آميدها، پي استرها و كوپلي استر - ايميدهاي پايدار حرارتي جديد با معماري كايرال حاوي قطعات دي اسيدهاي آليفاتيك، آروماتيك و آمينو اسيدهاي متيونين و لوسين
مقطع تحصيلي :
كارشناسي ارشد
گرايش تحصيلي :
شيمي آلي - پليمر
محل تحصيل :
اصفهان: دانشگاه صنعتي اصفهان، دانشكده شيمي
صفحه شمار :
نه، [77]، [II]ص.: مصور، جدول، نمودار
يادداشت :
ص. ع. به فارسي و انگليسي
استاد راهنما :
شادپور ملك پور
توصيفگر ها :
پلي مرهاي فعال نوري , پلي استرهاي PE)s) , پلي آميدهاي PA)s) , پلي آميدهاي (27a-h)
تاريخ نمايه سازي :
12/3/86
استاد داور :
حميد جواهريان نقاش، محمد حسن اميرخيزي
چكيده فارسي :
به فارسي و انگليسي: قابل رويت در نسخه ديجيتال
چكيده انگليسي :
AbstractIn this project a series of novel thermally stable polyamides PA s polyesters PE s andpoly ester imide s PEI s based on biodegradable amino acids moieties such as L methionine and L leucine were synthesized Some physical properties of them were investigated First inorder to prepare new aliphatic aromatic PEIs based on N trimellitylimido L methionine as amonomer direct polycondensation reactions of this monomer with various bisphenols tookplace in the presence of thionyl chloride pyridine Py as condensing agent Favorableconditions in terms of reaction time and temperature were also investigated The resultingPEIs were obtained in good yields and exhibited low to moderate inherent viscosities rangingfrom 0 15 to 0 40 dL g Also an attempt was made to construct the new monomer with chiralarchitecture containing of bulky aromatic diacid by using L leucine phthalic anhydride and5 aminoisophthalic acid 5 4 methyl 2 phthalimidylpentanoylamino isophthalic acid wassynthesized in three steps This monomer could react with aromatic diols via directpolycondensation by using tosyl chloride N N dimethyl formamide Py as condensing agent inorder to prepare thermally stable optically active PEs in high yields and inherent viscosities inthe range of 0 23 0 52 dL g Also a new process of polycondensation of this monomer withdifferent diamines for producing extended PAs was carried out either in the presence ofN methyl pyrrolidone triphenyl phosphate TPP calcium chloride Py as condensing agent and TPP with ionic liquid both as solvent and catalyst as the other condensing agent Inherentviscosities of these polymers were in the range of 0 27 0 41 dL g and 0 38 0 55 dL grespectively and it exhibited good solubility and thermal stability It seemed that in thepresence of ionic liquids better results were obtained The chemical structure of monomers and polymers were confirmed by elemental analysis FT IR 1H NMR and 13C NMRspectroscopy elemental analysis and specific rotation
استاد راهنما :
شادپور ملك پور
استاد داور :
حميد جواهريان نقاش، محمد حسن اميرخيزي
