美国 In 1807, Charles Wiley, then 25 years old, opened a small printing shop at 6 Reade Street in lower Manhattan, New York City. During the next four years, he worked with other printers, primarily Isa
〔23〕T. Shimizu, M. Sisido et al., Polym. Prepro. Japan., 25, 34 (1976). H. Takaci, M. Sisido et al., Bull. Chem. Soci. Japan., 50, 1807 (1977).M. Sisido, J. Imanishi et al.,