From Bis-Silanol Monomers Obtained via an Organometallic Route

From Bis-Silanol Monomers Obtained via an Organometallic Route 

after polycondensation, it led to the corresponding homopolysU-phenylene siloxane (cf. Fig. 3)  

In reference [4] some previous attempts to synthesize bis-silanol 1 are cited but the results were not reproducible. 

The hybrid homosilphenylenepolysiloxane presents a better thermal stability than polydimethylsiloxane (PDMS). It is sohd (melting point = 148 °C instead of - 40 °C for PDMS). 

Bis-silanol 1 has been used in different syntheses of random, alternated or block copolymers. Merker et al. [5] described random and block copolymers of the following structme  

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