A5003340654- Polymer Science and PVC
- Advanced Polymer Synthesis and Characterization
- Polymer Nanocomposites and Properties
- Microplastics and Plastic Pollution
- Metal-Organic Frameworks: Synthesis and Applications
- biodegradable polymer synthesis and properties
- Covalent Organic Framework Applications
- Carbon Dioxide Capture Technologies
- Organometallic Compounds Synthesis and Characterization
- Photopolymerization techniques and applications
- Membrane Separation and Gas Transport
- Polymer Nanocomposite Synthesis and Irradiation
- Carbon dioxide utilization in catalysis
- Silicone and Siloxane Chemistry
- Polymer crystallization and properties
- Extraction and Separation Processes
- Probiotics and Fermented Foods
- Recycling and Waste Management Techniques
- Corrosion Behavior and Inhibition
- Antimicrobial agents and applications
- Nanocomposite Films for Food Packaging
- Gut microbiota and health
- Conducting polymers and applications
- Metal complexes synthesis and properties
- Nanoparticles: synthesis and applications
Middle Technical University
2023-2025
British University in Egypt
2024
Al Mansour University College
2019-2023
Zagazig University
2023
Alexandria University
2023
Al Azhar University
2023
University of Tikrit
2017-2018
Nahrain University
2018
Heriot-Watt University
2013
Three new tetra-Schiff bases were synthesized and characterized to be used as photostabilizers for poly(vinyl chloride) (PVC) films. The photostability of PVC films (40 μm thickness) in the presence Schiff (0.5 wt %) upon irradiation (300 h) with a UV light (λmax = 365 nm intensity 6.43 × 10-9 ein∙dm-3∙s-1) was examined using various spectroscopic measurements surface morphology analysis. changes functional groups' indices, weight viscosity average molecular monitored against time. additives...
As poly(vinyl chloride) (PVC) photodegrades with long-term exposure to ultraviolet radiation, it is desirable develop methods that enhance the photostability of PVC. In this study, new aromatic-rich diorganotin(IV) complexes were tested as photostabilizers in PVC films. The synthesized 79-86% yields by reacting excess naproxen tin(IV) chlorides. films containing 0.5 wt % irradiated light for up 300 h, and changes within monitored using weight loss formation specific functional groups...
Poly(vinyl chloride) (PVC), a polymer widely used in common household and industrial materials, undergoes photodegradation upon ultraviolet irradiation, leading to undesirable physicochemical properties reduced lifetime. In this study, four telmisartan organotin(IV) compounds were tested as photostabilizers against photodegradation. PVC films (40-µm thickness) containing these (0.5 wt%) irradiated with light at room temperature for up 300 h. Changes various polymeric parameters, including...
Five Schiff bases derived from melamine have been used as efficient additives to reduce the process of photodegradation poly(vinyl chloride) films. The performance has investigated using various techniques. Poly(vinyl films containing were irradiated with ultraviolet light and any changes in their infrared spectra, weight, viscosity average molecular weight investigated. In addition, surface morphology was inspected a microscope, atomic force microscopy, scanning electron micrograph....
Three polyphosphates were used as inhibitors for poly(vinyl chloride) (PVC) photodegradation. The added to PVC at a concentration of 0.5% by weight. films (40 µm thickness) irradiated room temperature with ultraviolet (UV) light up 300 h. changes in after irradiation monitored Fourier transform infrared spectroscopy, weight loss, viscosity-average molecular determination, and atomic force microscopy. These very noticeable the blank compared ones obtained when additives used. can inhibit...
Three organotin(IV) complexes containing ciprofloxacin as a ligand (Ph₃SnL, Me₂SnL₂ and Bu₂SnL₂; 0.5% by weight) were used additives to inhibit the photodegradation of polyvinyl chloride films (40 µm thickness) upon irradiation with ultraviolet light (λmax = 313 at intensity 7.75 × 10-7 ein dm-3 S-1) room temperature. The efficiency photostabilizers was determined monitoring changes in weight, growth specific functional groups (hydroxyl, carbonyl carbene), viscosity, average molecular chain...
Five Schiff bases containing a thiadiazole moiety have been used as poly(vinyl chloride) photostabilizers at low concentrations. The efficiency of was investigated using various techniques, for example, the changes in infrared spectra, molecular weight, chain scission quantum yield, and surface morphology were monitored upon irradiation with an ultraviolet light. Evidently, all additives inhibited photodegradation significant level. most efficient base exhibited high level aromaticity...
Three new polyphosphates were synthesized in good yields by reacting diethylenetriamine with the appropriate phosphate ester ethanol under acidic conditions. The polyphosphate structures determined using FT-IR and 1H-NMR spectroscopies, their elemental compositions confirmed EDX spectroscopy. Polyphosphates added to poly(vinyl chloride) (PVC) at low concentrations fabricate thin films. PVC films irradiated ultraviolet light for long periods, effect of as photostabilizer was investigated...