Polymer-silica nanocomposite aerogels with enhanced mechanical properties using Chemical Vapor Deposition (CVD) of cyanoacrylates

Dylan J. Boday, Douglas A Loy, Kimberley A. DeFriend, Kennard V. Wilson, David Coder

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Aerogels were structurally modified using chemical vapor deposition (CVD) of cyanoacrylate monomers to afford polycyanoacrylate-aerogel nanocomposites. Silica aerogels are low density, high surface area materials whose applications are limited by their fragility. Cyanoacrylate CVD allowed us to deposit a film of organic polymer throughout fragile porous monoliths within hours. Our experiments have shown that polymerization of the cyanoacrylate monomers was initiated by the adsorbed water on the surface of the silica permitting the nanocomposites structures to be formed with little or no sample preparation. We found that the strength of the polycyanoacrylate-aerogel nanocomposites increased thirty two-fold over the un-treated aerogels with only a three-fold increase in density and an eight-fold decrease in surface area. Along with the improvement in mechanical properties, the aerogels became less hydrophilic than un-modified aerogels. Polycyanoacrylate-coated aerogels were placed directly into water and did not suffer catastrophic fragmentation as observed with un-modified silica aerogels.

Original languageEnglish (US)
Title of host publicationMaterials Research Society Symposium Proceedings
Pages153-158
Number of pages6
Volume1007
StatePublished - 2008
Event2007 MRS Spring Meeting - San Francisco, CA, United States
Duration: Apr 9 2007Apr 13 2007

Other

Other2007 MRS Spring Meeting
CountryUnited States
CitySan Francisco, CA
Period4/9/074/13/07

Fingerprint

Cyanoacrylates
Aerogels
aerogels
Silicon Dioxide
Chemical vapor deposition
Nanocomposites
nanocomposites
Polymers
Silica
vapor deposition
mechanical properties
silicon dioxide
Mechanical properties
polymers
monomers
Monomers
Organic polymers
Water
water
fragmentation

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering
  • Mechanics of Materials

Cite this

Boday, D. J., Loy, D. A., DeFriend, K. A., Wilson, K. V., & Coder, D. (2008). Polymer-silica nanocomposite aerogels with enhanced mechanical properties using Chemical Vapor Deposition (CVD) of cyanoacrylates. In Materials Research Society Symposium Proceedings (Vol. 1007, pp. 153-158)

Polymer-silica nanocomposite aerogels with enhanced mechanical properties using Chemical Vapor Deposition (CVD) of cyanoacrylates. / Boday, Dylan J.; Loy, Douglas A; DeFriend, Kimberley A.; Wilson, Kennard V.; Coder, David.

Materials Research Society Symposium Proceedings. Vol. 1007 2008. p. 153-158.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Boday, DJ, Loy, DA, DeFriend, KA, Wilson, KV & Coder, D 2008, Polymer-silica nanocomposite aerogels with enhanced mechanical properties using Chemical Vapor Deposition (CVD) of cyanoacrylates. in Materials Research Society Symposium Proceedings. vol. 1007, pp. 153-158, 2007 MRS Spring Meeting, San Francisco, CA, United States, 4/9/07.
Boday DJ, Loy DA, DeFriend KA, Wilson KV, Coder D. Polymer-silica nanocomposite aerogels with enhanced mechanical properties using Chemical Vapor Deposition (CVD) of cyanoacrylates. In Materials Research Society Symposium Proceedings. Vol. 1007. 2008. p. 153-158
Boday, Dylan J. ; Loy, Douglas A ; DeFriend, Kimberley A. ; Wilson, Kennard V. ; Coder, David. / Polymer-silica nanocomposite aerogels with enhanced mechanical properties using Chemical Vapor Deposition (CVD) of cyanoacrylates. Materials Research Society Symposium Proceedings. Vol. 1007 2008. pp. 153-158
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