Material that is converted to a @CT07540@ through @P04961@.
Note: Examples include poly(dimethylsilanediyl), poly(carbasilane)s, poly(silazane)s, etc.
Source: PAC, 2007, 79, 1801. (Definitions of terms relating to the structure and processing of sols, gels, networks, and inorganic-organic hybrid materials (IUPAC Recommendations 2007)) on page 1810 [Terms] [Paper]