A New Fluorinated Alkoxysilane with a Branched Cyclic Substituent and the Properties of the Related Polymers

作者：Ladilina E Yu^*; Lyubova T S; Kuznetsova O V; Klapshin Yu P; Baten'kin M A; Sidorenko K V; Glukhova T A; Gorshkov O N

来源：Polymer Science - Series B, 2015, 57(2): 150-158.

DOI：10.1134/S1560090415020074

The new alkoxysilane 2,2-bis(trifluoromethyl)-4,4-diethoxy-1-aza-3-oxa-4-silacycloheptane behaves as a bi- or trifunctional compound, depending on the hydrolysis conditions. In case of a deficiency of water, a mixture of cyclosiloxanes with cyclic substituents at silicon atoms is obtained, while in case of an excess of water, a crosslinked polysiloxane with hydroxyl-containing substituents is obtained. On the basis of the compositions 2,2-bis(trifluoromethyl)-4,4-diethoxy-1-aza-3-oxa-4-silacycloheptane and 3-aminopro-pyltriethoxysilane, under mild conditions in the presence of atmospheric moisture, transparent solid polysi-loxane coatings with very low refractive indexes for nonporous polymers are formed.

• 出版日期2015-3