Origin of porosity in resorcinol-formaldehyde aerogels
β Scribed by Dale W. Schaefer; Richard Pekala; Greg Beaucage
- Book ID
- 115990273
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 619 KB
- Volume
- 186
- Category
- Article
- ISSN
- 0022-3093
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π SIMILAR VOLUMES
RF aerogels were prepared by sol-gel polycondensation of resorcinol with formaldehyde in a slightly basic aqueous solution and supercritical drying with carbon dioxide. The aerogels were characterized by nitrogen adsorption and density measurements. A small-angle X-ray scattering (SAXS) technique wa
Resorcinol-formaldehyde (RF) aerogel chemistry has been used with encapsulation techniques to fabricate low-density, transparent, foam shells. To accomplish this, the gelation time was reduced from several hours to several minutes by the addition of acid following base-catalyzed RF particle growth.