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عنوان البحث
Preparation And Characterization Of A Novel Hyperbranched Polyester Polymers Using A2+B3 Monomers
عنوان المجلة
Production Engineering Archives
ISSN-2353-5156
تفاصيل النشر
سنة النشر - 2023 / الفهرس الاصلي للمجلة - 29 : 1 (عدد الصفحات 8)
تصنيف البحث
كيمياء - المجموعة العلمية
رابط DOI
#
البحث والاستدامة
الهدف 9– الصناعة والابتكار والبنية التحتية   المزيد حول هذا الهدف
البحث والمجتمع
نعم , يدعم

اسم الباحثجهة الانتساببلد الباحث
نبيل المطيري جامعة بابل العراق
علي الزبيدي جامعة بابل العراق
علي جاسم الزهيري جامعة بابل العراق

Compared to linear analogs, hyperbranched polymers (HBPs) have gotten much attention in the last decade because of their intrinsic globular topologies and distinctive features like low viscosity, high solubility, and a high degree of functionality. In this work, four types of hyperbranched polyester polymer HBPs have been synthesized using the A2+B3 polycondensation methodology. Firstly, the starting material B3 monomer (Pyrimidine-2,4,6-triol) has been synthesized using urea and malonic acid with the presence of sodium Na as the catalyst for the reaction. Secondly, four types of materials (tartaric acid TA, adipic acid AD, maleic acid MA, and phthalic anhydride PA) as A2 monomers were added to the starting material B3 monomer in an oil bath to prepare the four types of HBP. The chem-ical structure of HBPs was characterized by FTIR, and 1H-NMR. The molecular weight of the prepared HBPs was characterized by gel permeation chromatography GPC, and thermal properties were char-acterized by differential scanning calorimetry DSC and thermal gravimetric analysis TGA. FTIR re-sults showed that there are new bands, such as C-O-C between A2 and B3 monomers, as indicated by 1H-NMR. In addition, GPC shows that the prepared polymers have a narrow molecular weight distri-bution with good thermal stability, as indicated by DSC and TGA.