A new synthetic route to organic aerogels
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
Similar Records
A comparison of mechanical properties and scaling law relationships for silica aerogels and their organic counterparts
A synthetic route to organic aerogels: Mechanism, structure, and properties. [Resorcinol-formaldehyde]
New organic aerogels based upon a phenolic-furfural reaction
Conference
·
Wed Aug 01 00:00:00 EDT 1990
·
OSTI ID:6963543
+3 more
A synthetic route to organic aerogels: Mechanism, structure, and properties. [Resorcinol-formaldehyde]
Conference
·
Fri Jan 01 00:00:00 EST 1988
·
OSTI ID:6963543
New organic aerogels based upon a phenolic-furfural reaction
Conference
·
Thu Sep 01 00:00:00 EDT 1994
·
OSTI ID:6963543
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
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