Diffusion of surface-active amphiphiles in silicone-based fouling-release coatings

Albert Camós Noguer, S. M. Olsen, Søren Hvilsted, Søren Kiil*

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

107 Downloads (Pure)

Abstract

Amphiphiles (i.e. amphiphilic molecules such as surfactants, block copolymers and similar compounds) are used in small amounts to modify the surface properties of polymeric materials. In silicone fouling-release coatings, PEG-based amphiphiles are added to provide biofouling-resistance. The success of this approach relies on the ability of the amphiphiles to diffuse through the coating film and cover the surface of the coating. A novel method for the measurement of diffusion coefficients of PEG-based amphiphiles of different chemistries in PDMS-based coatings is presented here. The diffusion coefficient of the amphiphiles shows a weak dependency on their molecular weight, although this dependency is much less pronounced than for other rubbery polymeric materials. The biofouling-resistance properties in fouling-release coatings were also studied for these amphiphiles. It was found that the diffusion coefficient does not have any influence on the biofouling-resistance results for the studied compounds. Instead, the chemistry of the hydrophobic block of the amphiphiles is much more significant, with PEG-PDMS block copolymers showing the best properties among the studied compounds.

Original languageEnglish
JournalProgress in Organic Coatings
Volume106
Pages (from-to)77-86
ISSN0300-9440
DOIs
Publication statusPublished - 2017

Keywords

  • Amphiphiles
  • Biofouling
  • Block copolymers
  • Diffusion
  • Fouling-release coatings

Cite this

Noguer, Albert Camós ; Olsen, S. M. ; Hvilsted, Søren ; Kiil, Søren. / Diffusion of surface-active amphiphiles in silicone-based fouling-release coatings. In: Progress in Organic Coatings. 2017 ; Vol. 106. pp. 77-86.
@article{9d4e9ae9408044ed83bdc0a0654bad1c,
title = "Diffusion of surface-active amphiphiles in silicone-based fouling-release coatings",
abstract = "Amphiphiles (i.e. amphiphilic molecules such as surfactants, block copolymers and similar compounds) are used in small amounts to modify the surface properties of polymeric materials. In silicone fouling-release coatings, PEG-based amphiphiles are added to provide biofouling-resistance. The success of this approach relies on the ability of the amphiphiles to diffuse through the coating film and cover the surface of the coating. A novel method for the measurement of diffusion coefficients of PEG-based amphiphiles of different chemistries in PDMS-based coatings is presented here. The diffusion coefficient of the amphiphiles shows a weak dependency on their molecular weight, although this dependency is much less pronounced than for other rubbery polymeric materials. The biofouling-resistance properties in fouling-release coatings were also studied for these amphiphiles. It was found that the diffusion coefficient does not have any influence on the biofouling-resistance results for the studied compounds. Instead, the chemistry of the hydrophobic block of the amphiphiles is much more significant, with PEG-PDMS block copolymers showing the best properties among the studied compounds.",
keywords = "Amphiphiles, Biofouling, Block copolymers, Diffusion, Fouling-release coatings",
author = "Noguer, {Albert Cam{\'o}s} and Olsen, {S. M.} and S{\o}ren Hvilsted and S{\o}ren Kiil",
year = "2017",
doi = "10.1016/j.porgcoat.2017.02.014",
language = "English",
volume = "106",
pages = "77--86",
journal = "Progress in Organic Coatings",
issn = "0300-9440",
publisher = "Elsevier",

}

Diffusion of surface-active amphiphiles in silicone-based fouling-release coatings. / Noguer, Albert Camós; Olsen, S. M.; Hvilsted, Søren; Kiil, Søren.

In: Progress in Organic Coatings, Vol. 106, 2017, p. 77-86.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Diffusion of surface-active amphiphiles in silicone-based fouling-release coatings

AU - Noguer, Albert Camós

AU - Olsen, S. M.

AU - Hvilsted, Søren

AU - Kiil, Søren

PY - 2017

Y1 - 2017

N2 - Amphiphiles (i.e. amphiphilic molecules such as surfactants, block copolymers and similar compounds) are used in small amounts to modify the surface properties of polymeric materials. In silicone fouling-release coatings, PEG-based amphiphiles are added to provide biofouling-resistance. The success of this approach relies on the ability of the amphiphiles to diffuse through the coating film and cover the surface of the coating. A novel method for the measurement of diffusion coefficients of PEG-based amphiphiles of different chemistries in PDMS-based coatings is presented here. The diffusion coefficient of the amphiphiles shows a weak dependency on their molecular weight, although this dependency is much less pronounced than for other rubbery polymeric materials. The biofouling-resistance properties in fouling-release coatings were also studied for these amphiphiles. It was found that the diffusion coefficient does not have any influence on the biofouling-resistance results for the studied compounds. Instead, the chemistry of the hydrophobic block of the amphiphiles is much more significant, with PEG-PDMS block copolymers showing the best properties among the studied compounds.

AB - Amphiphiles (i.e. amphiphilic molecules such as surfactants, block copolymers and similar compounds) are used in small amounts to modify the surface properties of polymeric materials. In silicone fouling-release coatings, PEG-based amphiphiles are added to provide biofouling-resistance. The success of this approach relies on the ability of the amphiphiles to diffuse through the coating film and cover the surface of the coating. A novel method for the measurement of diffusion coefficients of PEG-based amphiphiles of different chemistries in PDMS-based coatings is presented here. The diffusion coefficient of the amphiphiles shows a weak dependency on their molecular weight, although this dependency is much less pronounced than for other rubbery polymeric materials. The biofouling-resistance properties in fouling-release coatings were also studied for these amphiphiles. It was found that the diffusion coefficient does not have any influence on the biofouling-resistance results for the studied compounds. Instead, the chemistry of the hydrophobic block of the amphiphiles is much more significant, with PEG-PDMS block copolymers showing the best properties among the studied compounds.

KW - Amphiphiles

KW - Biofouling

KW - Block copolymers

KW - Diffusion

KW - Fouling-release coatings

U2 - 10.1016/j.porgcoat.2017.02.014

DO - 10.1016/j.porgcoat.2017.02.014

M3 - Journal article

AN - SCOPUS:85013812793

VL - 106

SP - 77

EP - 86

JO - Progress in Organic Coatings

JF - Progress in Organic Coatings

SN - 0300-9440

ER -