1. Chemistry Department, Faculty of Science, King Khalid University, Abha, Saudi Arabia
2. Chemistry Department, Faculty of Applied Sciences, Taiz University, Taiz, Yemen
3. Egyptian Propylene and Polypropylene Company, Port Said, Egypt
4. Basic Science Department, Higher Institute of Engineering and Technology, New Damietta, Egypt
5. Chemistry Department, Faculty of Science, Damietta University, Damietta, Egypt