Hyperbranched Polyester Polymer Preparation and Study Its Effect on Some Properties of Polypropylene

Al-Mutairi, Nabeel; Al-Zubiedy, Ali; Al-Zuhairi, Ali Jassim

doi:10.21608/ejchem.2022.98747.4594

Cited by 2 publications

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“…The starting material (Pyrimidine-2,4,6-triol) used in the synthesis of the four hyperbranched polyester polymers was prepared based on our previous work (Al-Mutairi et al, 2022). 0.5 mole (52.03 g) of malonic acid and 0.5 moles (30.03 g) of urea dissolved in 250 ml of ethanol in the presence of 11 g of sodium that was dissolved in 250 ml of ethanol in a glass beaker protected with calcium chloride.…”

Section: Materials and Methods Used For The Synthesis Of Hyperbranche...mentioning

confidence: 99%

Preparation and Characterization of a Novel Hyperbranched Polyester Polymers Using A2+B3 Monomers

Al-Mutairi

Al-Zubiedy

Al-Zuhairi

2023

Production Engineering Archives

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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 chemical 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 characterized by differential scanning calorimetry DSC and thermal gravimetric analysis TGA. FTIR results 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 distribution with good thermal stability, as indicated by DSC and TGA.

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Section: Materials and Methods Used For The Synthesis Of Hyperbranche...mentioning

confidence: 99%

Preparation and Characterization of a Novel Hyperbranched Polyester Polymers Using A2+B3 Monomers

Al-Mutairi

Al-Zubiedy

Al-Zuhairi

2023

Production Engineering Archives

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“…VPP and rPP were purchased from sabic (KSA), and used as the major phase for the preparation of polymeric blends. A novel Hyperbranched polyester polymers HBPs (HBP-TA, HBP-AD, HBP-MA, and HBP-PA) were synthesized by polycondensation polymerization in our laboratory (polymer department/Babylon University) according our previous works [13] and [14]. Table 1 shows the properties of VPP and rPP.…”

Section: Methodsmentioning

confidence: 99%

The Biodegradation and the Rheological Properties of Polypropylene/Hyperbranched Polyester Blends for Industrial Applications

AL-MUTAIRI

2023

Quality Production Improvement and System Safety

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Abstract. In this research, four novel types of hyperbranched polyester polymers (HBPs) were used and blended with polypropylene polymer PP, virgin VPP and recycled rPP, using a twin-screw extrusion machine. Hyperbranched polyester was added in different weight ratios (5%, 10%, and 20%). The Fourier transform spectroscopy FTIR, the water contact angle CA, the biodegradation in soil, and the rheological properties (melt flow rate MFR) of the prepared blends were investigated. The results showed that the contact angle of VPP and rPP blends has improved with the addition of HBPs, and in addition, the biodegradation results in soil showed that weight loss increased as the amount of HBPs increased in VPP and rPP blends. The rheological properties, melt flow rate MFR, showed that the addition of HBPs increased the MFR for both PP blends, VPP and rPP. In addition, it was found that the blends' viscosity was decreased and their shear rate was increased. This is an indication that the HBPs work as a processing aid additive by increasing the shear thinning behavior.

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Hyperbranched Polyester Polymer Preparation and Study Its Effect on Some Properties of Polypropylene

Cited by 2 publications

References 0 publications

Preparation and Characterization of a Novel Hyperbranched Polyester Polymers Using A2+B3 Monomers

Preparation and Characterization of a Novel Hyperbranched Polyester Polymers Using A2+B3 Monomers

The Biodegradation and the Rheological Properties of Polypropylene/Hyperbranched Polyester Blends for Industrial Applications

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