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Preparation and characterization of water soluble polyester coatings based on waste materials / Ramzy Takawy Boutros Khalil ; Supervisd Magdy Sabaa Wadid Farag Sabaa , Soheir Youssef Tawfik

By: Contributor(s): Material type: TextTextLanguage: English Publication details: Cairo : Ramzy Takawy Boutros Khalil , 2018Description: 183 P. : charts , facsimiles ; 25cmOther title:
  • تحضير وتوصيف دهانات من البولى ايسترات الذائبة في الماء باءستخدام مخلفات الموارد [Added title page title]
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  • Issued also as CD
Dissertation note: Thesis (Ph.D.) - Cairo University - Faculty of Science - Department of Organic Chemistry Summary: Water soluble polyester coatings were prepared from wastes of poly (ethylene terephthalate) (PET) and wood sawdust. For PET waste, the first step was the de-polymerization of PET by 2,2-dimethyl-1,3-propanediol with different molar ratios in the presence of different concentrations of zinc acetate as trans-esterification catalyst. The de-polymerised product was characterised by infrared spectroscopy (FTIR), nuclear magnetic resonance (¹H-NMR), differential scanning calorimetry (DSC) and the determination of hydroxyl value. The polyesters were successfully synthesized by the esterification of the glycolysed product with adipic acid, isophthalic acid, 2,2-dimethyl-1,3-propanediol and trimellitic anhydride. FTIR and ¹H-NMR were used to elucidate the structure of the prepared polyesters. Hydroxyl number and the physical properties of the prepared polyesters were also investigated. Another waste (wood sawdust) was liquified. The first step in the liquefaction of sawdust wastes was the use of different types of glycols; diethylene glycol, dipropylene glycol and 2-methyl-1,3-propanediol as solvents and p-toluenesulfonic acid as the catalyst to produce bio-polyols, which were used to synthesize water soluble polyester resins
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Item type Current library Home library Call number Copy number Status Date due Barcode
Thesis Thesis قاعة الرسائل الجامعية - الدور الاول المكتبة المركزبة الجديدة - جامعة القاهرة Cai01.12.10.Ph.D.2018.Ra.P (Browse shelf(Opens below)) Not for loan 01010110076524000
CD - Rom CD - Rom مخـــزن الرســائل الجـــامعية - البدروم المكتبة المركزبة الجديدة - جامعة القاهرة Cai01.12.10.Ph.D.2018.Ra.P (Browse shelf(Opens below)) 76524.CD Not for loan 01020110076524000

Thesis (Ph.D.) - Cairo University - Faculty of Science - Department of Organic Chemistry

Water soluble polyester coatings were prepared from wastes of poly (ethylene terephthalate) (PET) and wood sawdust. For PET waste, the first step was the de-polymerization of PET by 2,2-dimethyl-1,3-propanediol with different molar ratios in the presence of different concentrations of zinc acetate as trans-esterification catalyst. The de-polymerised product was characterised by infrared spectroscopy (FTIR), nuclear magnetic resonance (¹H-NMR), differential scanning calorimetry (DSC) and the determination of hydroxyl value. The polyesters were successfully synthesized by the esterification of the glycolysed product with adipic acid, isophthalic acid, 2,2-dimethyl-1,3-propanediol and trimellitic anhydride. FTIR and ¹H-NMR were used to elucidate the structure of the prepared polyesters. Hydroxyl number and the physical properties of the prepared polyesters were also investigated. Another waste (wood sawdust) was liquified. The first step in the liquefaction of sawdust wastes was the use of different types of glycols; diethylene glycol, dipropylene glycol and 2-methyl-1,3-propanediol as solvents and p-toluenesulfonic acid as the catalyst to produce bio-polyols, which were used to synthesize water soluble polyester resins

Issued also as CD

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