1. Chemistry DepartmentFaculty of ScienceKing Abdulaziz University P.O. Box 80203 Jeddah 21589 Saudi Arabia
2. Polymer chemistry Lab.Chemistry DepartmentFaculty of ScienceAssiut University Assiut 71516 Egypt
3. Department of Chemical Engineering and Polymer ScienceShahjalal University of Science and Technology Sylhet 3100 Bangladesh
4. Chemistry DepartmentFaculty of ScienceBenha University, Benha Egypt
5. Center of Excellence for Advanced Materials Research (CEAMR)King Abdulaziz University Jeddah 21589 Saudi Arabia
6. Center for NanotechnologyDepartment of Natural SciencesCoppin State University 2500 W. N. Ave Baltimore, MD USA