1. a King Fahd University of Petroleum and Minerals The Research Institute KFUPM , Box 1725, Dhahran, 31261, Saudi Arabia
2. c Saudi Aramco, Consulting Services Department , P.O. Box 9134, Dhahran, 31311, Saudi Arabia
3. b Universität Hamburg Institut Für Technische und Macromolekulare Chemie , Bundesstr, 45 20146, Hamburg, Germany