DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: High optical transparency polymer aerogels using low refractive index monomers

Abstract

A polymer aerogel has polymerizable monomers and crosslinkers, wherein at least one of the monomers or at least one of the crosslinkers has a refractive index of less than 1.5, and the polymer aerogel has a visible transmittance of at least 20%/3 mm, a haze of 50%/3 mm or lower, and a porosity of at least 10%. A method of producing an aerogel includes dissolving precursors into a solvent, wherein the precursors include monomers, crosslinkers, a controlling agent and an initiator to form a precursor solution, wherein at least one of the monomers or at least one of the crosslinkers has a refractive index of 1.5 or lower, polymerizing the precursor solution to form a gel polymer, and removing the solvent from the gel polymer to produce an aerogel polymer.

Inventors:
; ; ; ; ; ;
Issue Date:
Research Org.:
Palo Alto Research Center Incorporated, Palo Alto, CA (United States)
Sponsoring Org.:
USDOE Advanced Research Projects Agency - Energy (ARPA-E)
OSTI Identifier:
1823921
Patent Number(s):
10995191
Application Number:
16/228,472
Assignee:
Palo Alto Research Center Incorporated (Palo Alto, CA)
Patent Classifications (CPCs):
C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08J - WORKING-UP
C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients
DOE Contract Number:  
AR0000274
Resource Type:
Patent
Resource Relation:
Patent File Date: 12/20/2018
Country of Publication:
United States
Language:
English

Citation Formats

Bulger, Eli, Chintapalli, Mahati, Iftime, Gabriel, Van Overmeere, Quentin, Rivest, Jessica Louis Baker, Neelakantan, Ravi, and Meckler, Stephen. High optical transparency polymer aerogels using low refractive index monomers. United States: N. p., 2021. Web.
Bulger, Eli, Chintapalli, Mahati, Iftime, Gabriel, Van Overmeere, Quentin, Rivest, Jessica Louis Baker, Neelakantan, Ravi, & Meckler, Stephen. High optical transparency polymer aerogels using low refractive index monomers. United States.
Bulger, Eli, Chintapalli, Mahati, Iftime, Gabriel, Van Overmeere, Quentin, Rivest, Jessica Louis Baker, Neelakantan, Ravi, and Meckler, Stephen. Tue . "High optical transparency polymer aerogels using low refractive index monomers". United States. https://www.osti.gov/servlets/purl/1823921.
@article{osti_1823921,
title = {High optical transparency polymer aerogels using low refractive index monomers},
author = {Bulger, Eli and Chintapalli, Mahati and Iftime, Gabriel and Van Overmeere, Quentin and Rivest, Jessica Louis Baker and Neelakantan, Ravi and Meckler, Stephen},
abstractNote = {A polymer aerogel has polymerizable monomers and crosslinkers, wherein at least one of the monomers or at least one of the crosslinkers has a refractive index of less than 1.5, and the polymer aerogel has a visible transmittance of at least 20%/3 mm, a haze of 50%/3 mm or lower, and a porosity of at least 10%. A method of producing an aerogel includes dissolving precursors into a solvent, wherein the precursors include monomers, crosslinkers, a controlling agent and an initiator to form a precursor solution, wherein at least one of the monomers or at least one of the crosslinkers has a refractive index of 1.5 or lower, polymerizing the precursor solution to form a gel polymer, and removing the solvent from the gel polymer to produce an aerogel polymer.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2021},
month = {5}
}

Works referenced in this record:

Aerogels, calcined and crystalline articles and methods of making the same
patent-application, July 2015


Aerogel Window Film System
patent-application, March 2014


Polymer Composition
patent-application, April 2004


Process for producing styrenic polymer
patent, March 1998


Glazing Unit with Transparent Filler
patent-application, July 2010


Aerogel-foam Composites
patent-application, December 2011


Telechelic Hybrid Aerogels
patent-application, March 2014


Process for the preparation of monolithic silica aerogels
patent, August 1998


Durable polymer-aerogel based superhydrophobic coatings, a composite material
patent, March 2014


Polymer Composition
patent-application, January 2003


Method to produce transparent polymer aerogels using chain transfer agents
patent-application, April 2019


Highly porous and mechanically strong ceramic oxide aerogels
patent, June 2010


Cellulose-enabled orientationally ordered flexible gels
patent-application, August 2018


Telechelic Hybrid Aerogels
patent-application, September 2011


Polymer Aerogel for Window Glazings
patent-application, April 2018


Polymer composition
patent, March 2004