Chemicals continued silane

In recent work by Arkles el al. [4, 5], it has been proposed that, in comparison with monomeric silanes, polymeric silanes may react with substrates more efficiently. A typical polymeric silane is shown in Fig. la, in which pendant chains of siloxanes are attached through methylene chain spacers to a polyethyleneimine backbone. The film-forming polymeric silane thus provides a more continuous reactive surface to the polymer matrix in the composite. In this case, the recurring amino groups on the polymeric silane backbone can react with an epoxy resin matrix through chemical bond formation. 

In the production of many microelectronic devices, continuous chemical vapor deposition (CVD) processes are used to deposit thin and exceptionally uniform silicon dioxide films on silicon wafers. One CVD process involves the reaction between silane and oxygen at a very low pressure. 

Silylated polyazamides (Si-PAA s) are water-soluble polymers. Therefore, they are absorbed more evenly from a one-phase aqueous medium to form a continuous fiber coating. Such a size provides excellent strand integrity and stiffness, resin compatibility and, most importantly, chemical reactivity with glass through pending silane functionality. 

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