A new procedure for the preparation of porous silica spheres is described, which enables very small particles with a narrow size range to be prepared. Furthermore, the parameters of the pore structure can easily be controlled by the reaction conditions. In this way, porous silica supports of high ef
β¦ LIBER β¦
Continuous preparation of porous organofunctionalized (Hetero-)polysiloxane spheres
β Scribed by Herbert Witossek; Ernst Bratz
- Publisher
- John Wiley and Sons
- Year
- 1997
- Tongue
- English
- Weight
- 458 KB
- Volume
- 20
- Category
- Article
- ISSN
- 0930-7516
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Pentamethylcyclopentadiene-functionalized polysiloxanes were prepared by a sol-gel process from tetraethoxysilane and (pentamethylcyclopentadienylmethyl)methyldiethoxysilane without a catalyst. The polysiloxanes are microporous-mesoporous solids, of which the BET surface areas and micropore volumes