Low density, resorcinol-formaldehyde aerogels

Title: Low density, resorcinol-formaldehyde aerogels

Full Record
Other Related Research

Abstract

The polycondensation of resorcinol with formaldehyde under alkaline conditions results in the formation of surface functionalized polymer ''clusters''. The covalent crosslinking of these ''clusters'' produces gels which when processed under supercritical conditions, produce low density, organic aerogels (density less than or equal to100 mg/cc; cell size less than or equal to0.1 microns). The aerogels are transparent,dark red in color and consist of interconnected colloidal-like particles with diameters of about 100 A/degree/. These aerogels may be further carbonized to form low density carbon foams with cell size of about 0.1 micron. 1 fig., 1 tab.

Inventors:: Pekala, R.W.

Issue Date:: 1988-05-26

Research Org.:: Lawrence Livermore National Lab., CA (USA)

OSTI Identifier:: 6291725

Patent Number(s):: -US-A7199404

Application Number:: ON: DE89009650

Assignee:: Dept. of Energy LLNL; EDB-89-063263

DOE Contract Number:: W-7405-ENG-48

Resource Type:: Patent

Resource Relation:: Other Information: Portions of this document are illegible in microfiche products

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; FORMALDEHYDE; SYNTHESIS; GELS; RESORCINOL; CROSS-LINKING; DENSITY; FOAMS; INVENTIONS; MECHANICAL PROPERTIES; POROSITY; SODIUM CARBONATES; SOL-GEL PROCESS; ALDEHYDES; ALKALI METAL COMPOUNDS; AROMATICS; CARBON COMPOUNDS; CARBONATES; CHEMICAL REACTIONS; COLLOIDS; DEVELOPERS; DISPERSIONS; HYDROXY COMPOUNDS; ORGANIC COMPOUNDS; OXYGEN COMPOUNDS; PHENOLS; PHYSICAL PROPERTIES; POLYMERIZATION; POLYPHENOLS; SODIUM COMPOUNDS; 360601* - Other Materials- Preparation & Manufacture

Citation Formats


                    Pekala, R.W. Low density, resorcinol-formaldehyde aerogels.  United States: N. p., 1988. 
        Web.

Copy to clipboard


                    Pekala, R.W. Low density, resorcinol-formaldehyde aerogels.  United States.

Copy to clipboard


                    Pekala, R.W. Thu .  
        "Low density, resorcinol-formaldehyde aerogels".  United States.

Copy to clipboard


                    
@article{osti_6291725,

  title        = {Low density, resorcinol-formaldehyde aerogels},

  author       = {Pekala, R.W.},

  abstractNote = {The polycondensation of resorcinol with formaldehyde under alkaline conditions results in the formation of surface functionalized polymer ''clusters''. The covalent crosslinking of these ''clusters'' produces gels which when processed under supercritical conditions, produce low density, organic aerogels (density less than or equal to100 mg/cc; cell size less than or equal to0.1 microns). The aerogels are transparent,dark red in color and consist of interconnected colloidal-like particles with diameters of about 100 A/degree/. These aerogels may be further carbonized to form low density carbon foams with cell size of about 0.1 micron. 1 fig., 1 tab.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1988},

  month        = {5}

}

Copy to clipboard

Patent:

Search for the full text at the U.S. Patent and Trademark Office

Save / Share:

Export Metadata

Save to My Library

Similar records in DOE Patents and OSTI.GOV collections:

Low density, resorcinol-formaldehyde aerogels

Patent Pekala, R.

This patent describes the polycondensation of resorcinol with formaldehyde under alkaline conditions results in the formation of surface functionalized polymer Clusters. The covalent crosslinking of these clusters produces gels which when processed under supercritical conditions, produce low density, organic aerogels (density {le} 100 mg/cc; cell size {le} 0.1 microns). The aerogels are transparent, dark red in color and consist of interconnected colloidal-like particles with diameters of about 100. These aerogels may be further carbonized to form low density carbon foams with cell size of about 0.1 micron.
Low density, resorcinol-formaldehyde aerogels

Patent Application Pekala, R.W.

The polycondensation of resorcinol with formaldehyde under alkaline conditions results in the formation of surface functionalized polymer clusters''. The covalent crosslinking of these clusters'' produces gels which when processed under supercritical conditions, produce low density, organic aerogels (density {le}100 mg/cc; cell size {le}0.1 microns). The aerogels are transparent, dark red in color and consist of interconnected colloidal-like particles with diameters of about 100 A{degrees}. These aerogels may be further carbonized to form low density carbon foams with cell size of about 0.1 micron. 1 ref., 1 tab.
Low density, resorcinol-formaldehyde aerogels

Patent Pekala, R.W.

The polycondensation of resorcinol with formaldehyde under alkaline conditions results in the formation of surface functionalized polymer clusters. The covalent crosslinking of these clusters produces gels which when processed under supercritical conditions, produce low density, organic aerogels (density [<=]100 mg/cc; cell size [<=]0.1 microns). The aerogels are transparent, dark red in color and consist of interconnected colloidal-like particles with diameters of about 100 [angstrom]. These aerogels may be further carbonized to form low density carbon foams with cell size of about 0.1 micron.
Low density, resorcinol-formaldehyde aerogels

Patent Pekala, Richard W. (Pleasant Hill, CA)

The polycondensation of resorcinol with formaldehyde under alkaline conditions results in the formation of surface functionalized polymer "clusters". The covalent crosslinking of these "clusters" produces gels which when processed under supercritical conditions, produce low density, organic aerogels (density .ltoreq.100 mg/cc; cell size .ltoreq.0.1 microns). The aerogels are transparent, dark red in color and consist of interconnected colloidal-like particles with diameters of about 100 .ANG.. These aerogels may be further carbonized to form low density carbon foams with cell size of about 0.1 micron.
Full Text Available
Low density, resorcinol-formaldehyde aerogels

Patent Pekala, Richard W. (Pleasant Hill, CA)

The polycondensation of resorcinol with formaldehyde under alkaline conditions results in the formation of surface functionalized polymer "Clusters". The covalent crosslinking of these "clusters" produces gels which when processed under supercritical conditions, produce low density, organic aerogels (density.ltoreq.100 mg/cc; cell size .ltoreq.0.1 microns). The aerogels are transparent, dark red in color and consist of interconnected colloidal-like particles with diameters of about 100.circle.. These aerogels may be further carbonized to form low density carbon foams with cell size of about 0.1 micron.
Full Text Available

Similar Records