1. Institute of Nuclear Energy Research, Atomic Energy Council, 1000 Wenhua Rd., Chiaan Village, Lungtan, Taoyuan 325, Taiwan, R.O.C
2. Institute of Organic and Polymeric Materials, National Taipei University of Technology, Taipei 10608, Taiwan, R.O.C.
3. Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 10608, Taiwan, R.O.C.