1. Department of Applied Chemistry, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
2. Neutron Science Laboratory, High Energy Accelerator Research Organization, 203-1 Shirakata, Tokai, Naka-gun, Ibaraki 319-1106, Japan
3. Sumitomo Rubber Industries, Ltd., 2-1-1 Tsutsui-cho, Chuo-ku, Kobe 651-0071, Japan
4. Center for Polymer Interface and Molecular Adhesion Science, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan