In this article, using the four-directional core and quaternary carbon branching point, adendritic polyestrone with twelve estrone units was synthesized by convergent strategy. Itsstructure was confirmed by IR and NMR...In this article, using the four-directional core and quaternary carbon branching point, adendritic polyestrone with twelve estrone units was synthesized by convergent strategy. Itsstructure was confirmed by IR and NMR spectra.展开更多
文摘In this article, using the four-directional core and quaternary carbon branching point, adendritic polyestrone with twelve estrone units was synthesized by convergent strategy. Itsstructure was confirmed by IR and NMR spectra.