Modifications of polymers through the addition of ultraviolet absorbers to reduce the aging effect of accelerated and natural irradiation

GA El-Hiti, DS Ahmed, E Yousif, OSA Al-Khazrajy… - Polymers, 2021 - mdpi.com
The photooxidative degradation process of plastics caused by ultraviolet irradiation leads to
bond breaking, crosslinking, the elimination of volatiles, formation of free radicals, and …

Photostabilization of poly (vinyl chloride) by organotin (IV) compounds against photodegradation

AG Hadi, K Jawad, GA El-Hiti, MH Alotaibi, AA Ahmed… - Molecules, 2019 - mdpi.com
Poly (vinyl chloride)(PVC), a polymer widely used in common household and industrial
materials, undergoes photodegradation upon ultraviolet irradiation, leading to undesirable …

Long-term effect of ultraviolet irradiation on poly (vinyl chloride) films containing naproxen diorganotin (IV) complexes

AG Hadi, E Yousif, GA El-Hiti, DS Ahmed, K Jawad… - Molecules, 2019 - mdpi.com
As poly (vinyl chloride)(PVC) photodegrades with long-term exposure to ultraviolet radiation,
it is desirable to develop methods that enhance the photostability of PVC. In this study, new …

The morphology and performance of poly (vinyl chloride) containing melamine Schiff bases against ultraviolet light

GA El-Hiti, MH Alotaibi, AA Ahmed, BA Hamad… - Molecules, 2019 - mdpi.com
Five Schiff bases derived from melamine have been used as efficient additives to reduce the
process of photodegradation of poly (vinyl chloride) films. The performance of Schiff bases …

Impact on Poly (Vinyl chloride) of trimethoprim schiff bases as stabilizers

ETB Al-Tikrity, AA Yaseen, E Yousif… - Polymers and …, 2022 - journals.sagepub.com
Poly (vinyl chloride) PVC materials are used in many industrial and household outdoor
applications which exposed to sunlight ultraviolet. This exposure motivates photo …

Spectroscopic characterization and assessment of microbiological potential of 1, 3, 4-thiadiazole derivative showing ESIPT dual fluorescence enhanced by …

I Budziak-Wieczorek, L Ślusarczyk… - Scientific Reports, 2022 - nature.com
In the presented study, advanced experimental techniques, including electronic absorption
and fluorescence spectroscopies [with Resonance Light Scattering (RLS)], measurements of …

Chitosan Schiff-Base hydrogels—A critical perspective review

IA Duceac, S Coseri - Gels, 2022 - mdpi.com
Chitosan is quite a unique polysaccharide due to the presence of the amine groups naturally
occurring in its structure. This feature renders it into a polycation which makes it appealing …

Influence of polyphosphates on the physicochemical properties of poly (vinyl chloride) after irradiation with ultraviolet light

GA El-Hiti, DS Ahmed, E Yousif, MH Alotaibi, HA Satar… - Polymers, 2020 - mdpi.com
Three new polyphosphates were synthesized in good yields by reacting diethylenetriamine
with the appropriate phosphate ester in ethanol under acidic conditions. The polyphosphate …

Sulfamethoxazole as a ligand to synthesize di-and tri-alkyltin (IV) complexes and using as excellent photo-stabilizers for PVC

E Alhaydary, E Yousif, MH Al-Mashhadani… - Journal of Polymer …, 2021 - Springer
In this work, three new di-and tri-organotin (IV) complex Ph 3 SnL, Bu 3 SnL, and Me 2 SnL 2
were successfully synthesized by reacting sulfamethoxazole drug as a ligand with different …

Mechanical properties of renewable plasticizer based on ricinoleic acid for PVC

H Zhang, F Zhu, Q Fu, X Zhang, X Zhu - Polymer Testing, 2019 - Elsevier
Expoxy acylated ricinoleic acid binary alcohol ether ester (EARABAEE) is a kind of novel bio-
based environmental-friendly plasticizer. EARABAE was synthesized from ricinoleic acid …