Popis: |
The application of the technique of trimethylsilylation to mineral silicates is reviewed. Information can be obtained on the molecular size distribution of the silicate anions and also on the aluminium distribution in a silicate backbone. Examples of the use of trimethylsilylation in the structural determinations of silicates include examination of sodium silicates and their solutions, calcium silicates, various glasses, cements and concretes. Included within the review is a discussion of the attempts to prepare new polyorganosiloxane materials. Trimethylsilylation of certain micas, for example, give polyorganosiloxane fluids and greases; and attempts to physically and chemically modify the polyorganosiloxane products are also reviewed. |