We have just published a new article in Materials. This work is dedicated to Professor Bogdan Marciniec on the occasion of his forthcoming 80th birthday. It presents Kasia’s further studies in the issue of the formation of new hybrid materials based on polysiloxanes and silsesquioxanes. We proposed a facile and efficient synthetic route towards unique hybrid materials containing polysiloxanes and mono(alkyl)silsesquioxanes as their pendant modifiers (T₈@PS). The idea of this work was to apply the hydrosilylation reaction as a tool for efficient and selective attachment of mono(alkenyl)substituted silsesquioxanes (differing in the alkenyl chain length, from -vinyl to -dec-9-enyl and types of inert groups- iBu, Ph at the inorganic core) onto two polysiloxanes containing various amount of Si-H units. The synthetic protocol, determined and confirmed by FT-IR in situ and NMR analyses, was optimized to ensure complete Si-H consumption along with the avoidance of side-products was optimized to assure complete Si-H consumption along with the avoidance of side-products that was determined and confirmed by FT-IR in situ and NMR analyses. A series of 20 new compounds were obtained with high yields and, complete β-addition selectivity was obtained and characterized by spectroscopic methods.

Polysiloxanes grafted with Mono(alkenyl)Silsesquioxanes – Particular Concept for their Connection
K. Mituła, J. Duszczak, M. Rzonsowska, P. Żak, B. Dudziec
Materials 2020, 13(21), 4784; DOI: 10.3390/ma13214784