Organofunctional siloxanes synthesis

Snow, S.A., Fenton, W.N. and Owen, M.J. (1991) Zwitterionic organofunctional siloxanes as aqueous surfactants - synthesis and characterization of betaine functional siloxanes and their comparison to sulfobetaine functional siloxanes. Langmuir, 7(5), 868-71. 

Detailed procedures for the synthesis ofa,o>-organofunctionally terminated siloxane oligomers with well defined structures have been given 50,66-67). Tables 6 and 7 provide the data on the synthesis and characteristics of aminopropyl and hydroxybutyl terminated polydimethylsiloxane oligomers prepared via anionic and cationic ringopening polymerization of octamethylcyclotetrasiloxane (D in the presence of appropriate disiloxanes, respectively. 

Organohydrogensilanes are formed as byproducts in the direct synthesis of dimethyldichlorosilane (see Section 4.2.1) and are important in the manufacture of hydrogen-containing siloxanes and organofunctional silanes (see... 

The usual way of preparing such aminopropyl-terminated siloxanes is the synthesis via a base-catalyzed equilibration reaction [1, 2]. A more convenient way is the termination reaction of silanol-terminated siloxanes with special organofunctional silanes [3,4],... 

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