摘要 |
A structure comprising bodies having a functional surface property bonded to a substrate via a siloxane polymer adhesive. The structure may comprise a novel composition comprising a siloxane polymer having carbon bodies bonded thereto by direct carbon to silicon bonds. This composition may be used to bond carbon parti- cles through a medium comprising the siloxane polymer to a vitreous, metal, plastic or other nu- cleophilic substrate. Alternatively, the bodies may comprise alumina, silicon zeolite, organic poly- mers or other nucleophilic compositions, which are bonded directly to silicon atoms of the siloxane polymer. To bond carbon or other nucleophilic bodies to the substrate, the substrate is contacted with a mixture of the bodies and a hydrosiloxane polymer. The mixture is heated to cause the poly- mer to be bonded to the nucleophilic bodies, typ- ically by C-Si, C-O-Si, Si-O-Si or Si-O-Al bonds, and to the substrate by reaction with the surface silanol or other nucleophilic groups. Chromato- graphic methods using a column comprising the novel composition are also disclosed.
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