A new synthetic route to organic aerogels

Conference · Wed Apr 11 00:00:00 EDT 1990

DOI:https://doi.org/10.1557/PROC-180-791· OSTI ID:6963543

Pekala, R W; Alviso, C T

The aqueous, sol-gel polymerization of melamine with formaldehyde, followed by supercritical extraction, leads to the formation of a new type of organic aerogel. Synthetic conditions (e.g. reaction time, pH) affect the density, transparency, and microstructure of the resultant aerogels. Unlike previous organic aerogels based upon resorcinol-formaldehyde, the melamine-formaldehyde aerogels are both colorless and transparent. Low densities (0.1-0.8 g/cc), high surface areas ({approximately}1000 m{sup 2}/g), and optical clarity are only a few of the promising characteristics of this new material. 12 refs., 3 figs.

• Research Organization: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
• Sponsoring Organization: DOE/DP
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 6963543
• Report Number(s): UCRL-JC-103522; CONF-900466-18; ON: DE90010477
• Resource Relation: Journal Volume: 180; Conference: Spring meeting of the Materials Research Society, San Francisco, CA (USA), 16-21 Apr 1990
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
FOAMS
CHEMICAL PREPARATION
FORMALDEHYDE
POLYMERIZATION
MELAMINE
SOL-GEL PROCESS
ALDEHYDES
AMINES
AZINES
CHEMICAL REACTIONS
COLLOIDS
DISPERSIONS
HETEROCYCLIC COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
SYNTHESIS
TRIAZINES
360601* - Other Materials- Preparation & Manufacture
400201 - Chemical & Physicochemical Properties