1. Nuclear Research and Development Group; Thailand Institute of Nuclear Technology (Public Organization), Ministry of Science and Technology; 9/9, Moo 7, Sai Moon Ongkharak Nakorn Nayok 26120 Thailand
2. Department of Industrial Engineering; Faculty of Engineering; Thammasat University; Khlong Luang Pathumthani 12120 Thailand
3. Department of Chemical Engineering; Faculty of Engineering; King Mongkut's University of Technology North Bangkok; 1518, Pracharat 1 Road Bangsue Bangkok 10800 Thailand
4. Polymer Chemistry Division; Department of Chemistry; Hacettepe University; Beytepe Ankara 06800 Turkey