论文部分内容阅读
A new cyclic monomer, 2-oxo-3-methylene-5, 6-diphenyl-1, 4-dioxan, was synthesized. Thestructure of the intermediates and the monomer were determined by IR,<sup>1</sup>H NMR,<sup>13</sup>C NMR andelemental analysis. This new monome