Accession Number:

ADA607311

Title:

Improved Performance of Protected Catecholic Polysiloxanes for Bioinspired Wet Adhesion to Surface Oxides

Descriptive Note:

Journal article

Corporate Author:

CALIFORNIA UNIV SANTA BARBARA

Personal Author(s):

• Heo, Jinhwa
• Kang, Taegon
• Jang, Se G.
• Hwang, Dong S.
• Spruell, Jason M.
• Killops, Kato L.
• Waite, J. H.
• Hawker, Craig J.

Report Date:

2012-11-26

Pagination or Media Count:

10.0

Abstract:

A facile synthetic strategy for introducing catecholic moieties into polymeric materials based on a readily available precursor eugenol and efficient chemistries tris- pentafluorophenylborane-catalyzed silation and thiol ene coupling is reported. Silyl protection is shown to be critical for the oxidative stability of catecholic moieties during synthesis and processing, which allows functionalized polysiloxane derivatives to be fabricated into 3D microstructures as well as 2D patterned surfaces. Deprotection gives stable catechol surfaces whose adhesion to a variety of oxide surfaces can be precisely tuned by the level of catechol incorporation. The advantage of silyl protection for catechol-functionalized polysiloxanes is demonstrated and represents a promising and versatile new platform for underwater surface treatments.

Descriptors:

• *ADHESION
• *NANOSTRUCTURES
• *OXIDES
• *SYNTHETIC MATERIALS
• AQUATIC ANIMALS
• CHEMISTRY
• EFFICIENCY
• FOULING ORGANISMS
• MICROSTRUCTURE
• POLYMERS
• PRECURSORS
• REPRINTS
• SILOXANES
• SURFACE FINISHING
• THREE DIMENSIONAL
• TWO DIMENSIONAL

Subject Categories:

• Inorganic Chemistry
• Plastics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE