Carborane–Siloxanes: Synthesis and Properties. New Possibilities for Structure Control

Abstract

This review considers recent trends in the development of carborane-siloxane structures. Both individual and polymer carborane-containing siloxane derivatives are presented. The main synthetic approaches to these compounds are described. The potential of their use in different fields of science and engineering is demonstrated.

N-type polymer semiconductors incorporating para, meta, and ortho-carborane in the conjugated backbone

“…[2][3][4][5] Such examples include carboranecontaining polysiloxanes, cyanate esters, polyimides, epoxy resin, and others. [6][7][8][9][10] Carborane derivatives are also highly relevant for medical applications, particularly for potential cancer treatments via boron neutron capture therapy (BNCT) due to their high concentration of 10 B. [11][12][13] Furthermore, many aryl-substituted o-carborane species have been developed due to their unusual luminescent properties.…”

Low Dispersity Telechelic Polydimethylsiloxanes Synthesized in Ammonia Medium

“…It is important to note that such low dispersity telechelic polymers could later be successfully modified by hydrothiolation and hydrosilylation reactions. This approach makes it possible to introduce virtually any organic or organoelement moieties therein, e.g ., carboranes or other bulky substituents. , Also, such modification provides tracing the influence of these groups on the properties (rheological and thermal) of the resulting polymer …”

“…This approach makes it possible to introduce virtually any organic or organoelement moieties therein, e.g., carboranes or other bulky substituents. 38,39 Also, such modification provides tracing the influence of these groups on the properties (rheological and thermal) of the resulting polymer. 40 To study the polymerization process, it was important to check the solubility of the initial monomer (D 3 Me2 ) in ammonia first.…”

Polyphenylsilsesquioxanes. New structures–new properties

“…84 To some extent, this operation makes them related to another class of unique organoelement polycycles, namely, carboranes. [85][86][87][88] Moreover, two faces can be opened by increasing the amount of the alkali (Fig. 13).…”