1. Department of Chemical Engineering Faculty of Engineering Kasetsart University 50 Ngam Wong Wan Rd., Chatuchak Bangkok 10900 Thailand
2. Center for Advanced Studies in Nanotechnology and Its Applications in Chemical Food and Agricultural Industries Kasetsart University Bangkok 10900 Thailand
3. Department of Chemical and Materials Engineering University of Alberta Edmonton Alberta T6G 1H9 Canada
4. Thai Polyethylene Co., Ltd 10 I‐1 Road, Map Ta Phut Industrial Estate, Muang District Rayong 21150 Thailand