Probing nanoscale chemical segregation and surface properties of antifouling hybrid xerogel films

Joel F. Destino, Caitlyn M. Gatley, Andrew K. Craft, Michael R. Detty, Frank V. Bright

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Over the past decade there has been significant development in hybrid polymer coatings exhibiting tunable surface morphology, surface charge, and chemical segregation-all believed to be key properties in antifouling (AF) coating performance. While a large body of research exists on these materials, there have yet to be studies on all the aforementioned properties in a colocalized manner with nanoscale spatial resolution. Here, we report colocalized atomic force microscopy, scanning Kelvin probe microscopy, and confocal Raman microscopy on a model AF xerogel film composed of 1:9:9 (mol:mol:mol) 3-aminopropyltriethoxysilane (APTES), n-octyltriethoxysilane (C8), and tetraethoxysilane (TEOS) formed on Al2O3. This AF film is found to consist of three regions that are chemically and physically unique in 2D and 3D across multiple length scales: (i) a 1.5 μm thick base layer derived from all three precursors; (ii) 2-4 μm diameter mesa-like features that are enriched in free amine (from APTES), depleted in the other species and that extend 150-400 nm above the base layer; and (iii) 1-2 μm diameter subsurface inclusions within the base layer that are enriched in hydrogen-bonded amine (from APTES) and depleted in the other species.

Original languageEnglish (US)
Pages (from-to)3510-3517
Number of pages8
JournalLangmuir
Volume31
Issue number11
DOIs
StatePublished - Mar 24 2015
Externally publishedYes

Fingerprint

antifouling
Xerogels
xerogels
surface properties
Amines
Surface properties
Microscopic examination
Coatings
amines
Polymers
Surface charge
microscopy
Surface morphology
coatings
Hydrogen
Atomic force microscopy
mesas
Scanning
spatial resolution
atomic force microscopy

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Spectroscopy
  • Electrochemistry

Cite this

Probing nanoscale chemical segregation and surface properties of antifouling hybrid xerogel films. / Destino, Joel F.; Gatley, Caitlyn M.; Craft, Andrew K.; Detty, Michael R.; Bright, Frank V.

In: Langmuir, Vol. 31, No. 11, 24.03.2015, p. 3510-3517.

Research output: Contribution to journalArticle

Destino, Joel F. ; Gatley, Caitlyn M. ; Craft, Andrew K. ; Detty, Michael R. ; Bright, Frank V. / Probing nanoscale chemical segregation and surface properties of antifouling hybrid xerogel films. In: Langmuir. 2015 ; Vol. 31, No. 11. pp. 3510-3517.
@article{db53e69b5f7b4972aa9a8bf517c5e034,
title = "Probing nanoscale chemical segregation and surface properties of antifouling hybrid xerogel films",
abstract = "Over the past decade there has been significant development in hybrid polymer coatings exhibiting tunable surface morphology, surface charge, and chemical segregation-all believed to be key properties in antifouling (AF) coating performance. While a large body of research exists on these materials, there have yet to be studies on all the aforementioned properties in a colocalized manner with nanoscale spatial resolution. Here, we report colocalized atomic force microscopy, scanning Kelvin probe microscopy, and confocal Raman microscopy on a model AF xerogel film composed of 1:9:9 (mol:mol:mol) 3-aminopropyltriethoxysilane (APTES), n-octyltriethoxysilane (C8), and tetraethoxysilane (TEOS) formed on Al2O3. This AF film is found to consist of three regions that are chemically and physically unique in 2D and 3D across multiple length scales: (i) a 1.5 μm thick base layer derived from all three precursors; (ii) 2-4 μm diameter mesa-like features that are enriched in free amine (from APTES), depleted in the other species and that extend 150-400 nm above the base layer; and (iii) 1-2 μm diameter subsurface inclusions within the base layer that are enriched in hydrogen-bonded amine (from APTES) and depleted in the other species.",
author = "Destino, {Joel F.} and Gatley, {Caitlyn M.} and Craft, {Andrew K.} and Detty, {Michael R.} and Bright, {Frank V.}",
year = "2015",
month = "3",
day = "24",
doi = "10.1021/la504993p",
language = "English (US)",
volume = "31",
pages = "3510--3517",
journal = "Langmuir",
issn = "0743-7463",
publisher = "American Chemical Society",
number = "11",

}

TY - JOUR

T1 - Probing nanoscale chemical segregation and surface properties of antifouling hybrid xerogel films

AU - Destino, Joel F.

AU - Gatley, Caitlyn M.

AU - Craft, Andrew K.

AU - Detty, Michael R.

AU - Bright, Frank V.

PY - 2015/3/24

Y1 - 2015/3/24

N2 - Over the past decade there has been significant development in hybrid polymer coatings exhibiting tunable surface morphology, surface charge, and chemical segregation-all believed to be key properties in antifouling (AF) coating performance. While a large body of research exists on these materials, there have yet to be studies on all the aforementioned properties in a colocalized manner with nanoscale spatial resolution. Here, we report colocalized atomic force microscopy, scanning Kelvin probe microscopy, and confocal Raman microscopy on a model AF xerogel film composed of 1:9:9 (mol:mol:mol) 3-aminopropyltriethoxysilane (APTES), n-octyltriethoxysilane (C8), and tetraethoxysilane (TEOS) formed on Al2O3. This AF film is found to consist of three regions that are chemically and physically unique in 2D and 3D across multiple length scales: (i) a 1.5 μm thick base layer derived from all three precursors; (ii) 2-4 μm diameter mesa-like features that are enriched in free amine (from APTES), depleted in the other species and that extend 150-400 nm above the base layer; and (iii) 1-2 μm diameter subsurface inclusions within the base layer that are enriched in hydrogen-bonded amine (from APTES) and depleted in the other species.

AB - Over the past decade there has been significant development in hybrid polymer coatings exhibiting tunable surface morphology, surface charge, and chemical segregation-all believed to be key properties in antifouling (AF) coating performance. While a large body of research exists on these materials, there have yet to be studies on all the aforementioned properties in a colocalized manner with nanoscale spatial resolution. Here, we report colocalized atomic force microscopy, scanning Kelvin probe microscopy, and confocal Raman microscopy on a model AF xerogel film composed of 1:9:9 (mol:mol:mol) 3-aminopropyltriethoxysilane (APTES), n-octyltriethoxysilane (C8), and tetraethoxysilane (TEOS) formed on Al2O3. This AF film is found to consist of three regions that are chemically and physically unique in 2D and 3D across multiple length scales: (i) a 1.5 μm thick base layer derived from all three precursors; (ii) 2-4 μm diameter mesa-like features that are enriched in free amine (from APTES), depleted in the other species and that extend 150-400 nm above the base layer; and (iii) 1-2 μm diameter subsurface inclusions within the base layer that are enriched in hydrogen-bonded amine (from APTES) and depleted in the other species.

UR - http://www.scopus.com/inward/record.url?scp=84925430624&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84925430624&partnerID=8YFLogxK

U2 - 10.1021/la504993p

DO - 10.1021/la504993p

M3 - Article

VL - 31

SP - 3510

EP - 3517

JO - Langmuir

JF - Langmuir

SN - 0743-7463

IS - 11

ER -