Hekmat Ismail Ibrahim Abdallah

Synthesis of new reactive dyes and/or UV absorbers for enhancing dyeing and UV protection properties of cotton fabric / تحضر صبغات و/ او مواد ماصة نشطة جددة لتحسن خواص الصباغة و الحماة من الاشعة فوق البنفسجة للاقمشة القطنة Hekmat Ismail Ibrahim Abdallah ; Supervised Ahmed Helmy Elwahay , Abdalla Abdelfattah Mousa - Cairo : Hekmat Ismail Ibrahim Abdallah , 2020 - 138 P. : charts ; 25m

Thesis (M.Sc.) - Cairo University - Faculty of Science - Department of Organic Chemistry

Part 1: Two new reactive anti-UV dyes were synthesized based on ethyl 4-aminobenzoate and 4- aminobenzophenone, respectively.These reactive dyes exhibited higher dyeing properties and UPF values on cotton fabric than C.I. Reactive Red 198. Part 2: A polyfunctional reactive dye was synthesized and it exhibited higher dyeing properties and UPF values on cotton fabric than C.I. Reactive Red 120. Part 3: Two colourless reactive UV absorbers were synthesized using 4-aminobenzophenone and ethyl 4-aminobenzoate, respectively. One of the reactive UV absorber achieved excellent UPF values compared to the other UV absorber which exhibited poor UPF values at the same conditions. The structures of all the synthesized reactive dyes and UV absorbers were elucidated by IR, 1H NMR and 13C NMR as well as elemental analyses



Anti-UV dyes Reactive UV absorbers UV protection properties