A new synthetic route to organic aerogels

Conference · Wed Apr 11 04:00:00 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., CA (USA)
• 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
• Country of Publication: United States
• Language: English

Related Subjects

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