Chemistry of Silane Coupling Reactions. II. Reaction of Dimethylmethoxysilanated Poly(butadiene) with Triethylsilanol and with Glass.

摘要

Poly(butadiene) having a dimethylmethoxysilane endgroup has been found to react with a model silanol, triethylsilanol, in the same way as a simple silane does, yielding the addition product, methanol, and dimers of the two starting materials. This reaction takes place readily at room temperature in benzene solution. A corresponding addition reaction between silanated poly(butadiene) and the OH groups present on the surface of glass has therefore been inferred. This is corroborated by a greater degree of retention of silanated poly(butadiene) compared to unsilanated poly(butadiene) on glass slides subjected to thorough washing, and by direct observation of polymer particles, about 0.3 micrometer in size, adhering to the glass treated with silanated poly(butadiene). (Author)