4467

4221

كارشناسي ارشد

شيمي آلي

اصفهان: دانشگاه صنعتي اصفهان، دانشكده شيمي

1387

[نه]، 79،[II]ص: جدول، نمودار

ص.ع. به: انگليسي و فارسي

عبدالرضا حاجي پور

29/2/1388

عبدالحسين دباغ، امير عبدالملكي

1396/09/12

كتابنامه

شيمي

ID4221

به فارسي وانگليسي: قابل رويت در نسخه ديجيتال

Abstract In this study different series of novel poly imide urethane s PIUs were prepared bythe reaction of chiral diols with various aromatic and aliphatic diisocyanates incommon solvent and the presence of DBTDL as catalyst First chiral diols N N pyromellitoyl bis L phenylalanine diol p2 N N 4 4 carbonyl diphthaloyl bis L phenylalanine diol p4 and N N naphtalen diimidyl bis L phenylalanine diol p6 were prepared by reaction of L phenylalaninol and dianhydrides Diols wereobtained in high yield and characterized with FT IR 1H NMR and 13 CNMR Thespecific rotation data confirmed the optical activity induction due to successfullyinsertion of L phenylalaninol in structure of diols These novel chiral diols have beenused in the synthesis of chiral polymers and also due to the presence of imide group intheir structures they can be used for the synthesis of thermal stable polymers Condensation Polymerization of diols with diisocyanates for synthesis of poly imide urthane s PIU s performed in common solvents under refluxing conditions orgraduation heating The resulting new polymers were obtained in good yields andtheir inherent viscosities were ranging between 0 18 and 0 38 dLg 1 The polymerswere characterized with FT IR 1H NMR and thermo gravimetric analysis techniques DSC and TGA The specific rotation data confirmed their optical activity inductionin their structure

عبدالرضا حاجي پور

عبدالحسين دباغ، امير عبدالملكي