Self-assembled perfluoroalkylsilane films on silicon substrates for hydrophobic coatings

Cai, Linlin; Liu, Anqi; Yuan, Yangsheng; Dai, Li; Li, Zhanxiong

doi:10.1016/j.porgcoat.2016.10.022

Cited by 22 publications

(5 citation statements)

References 60 publications

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“…Several additives have been examined for marine coatings including copper/zinc-based, [28][29][30] amphiphilic copolymers (i.e. PEG [31][32][33][34][35][36][37] or zwitterionic-based [38][39][40][41][42] ), or hydrogel-like polymers. 43 Additionally, silicone oils [44][45][46] and specialty additives such as sephiolite nanofibers, modified graphite, carbon nanotubes and pigments (i.e.…”

Section: Introductionmentioning

confidence: 99%

Amphiphilic zwitterionic-PDMS-based surface-modifying additives to tune fouling-release of siloxane-polyurethane marine coatings

Rahimi

Stafslien

Vanderwal

et al. 2020

Progress in Organic Coatings

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Section: Introductionmentioning

confidence: 99%

Amphiphilic zwitterionic-PDMS-based surface-modifying additives to tune fouling-release of siloxane-polyurethane marine coatings

Rahimi

Stafslien

Vanderwal

et al. 2020

Progress in Organic Coatings

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“…A promising antifouling mechanism is to create inhospitable surfaces which weakens the strength of adhesion between the bioadhesive, secreted by the fouling organisms, and the submerged surface. Inhospitable surfaces can be obtained using surface-modifying compounds, such as blended or grafted amphiphilic copolymers [ 15 , 16 , 17 , 18 , 19 , 20 , 21 ], zwitterionic polymers [ 22 , 23 , 24 , 25 ], or hydrogel-like polymers [ 26 , 27 ]. Specialty additives like fillers (sepiolite nanofibers, modified graphite, carbon nanotubes) and pigments (TiO 2 , ZnO) are also known to enhance the fouling release properties once embedded in a PDMS matrix [ 28 , 29 , 30 , 31 ].…”

Section: Introductionmentioning

confidence: 99%

Hydrolyzable Additive-Based Silicone Elastomers: A New Approach for Antifouling Coatings

et al. 2019

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Fouling Release Coatings are marine antifouling coatings based on silicone elastomers. Contrary to commonly used biocide-based antifouling coatings, they do not release biocides into the marine environment, however, they suffer from poor antifouling efficacy during idle periods. To improve their antifouling performances in static conditions, various amounts of hydrolyzable polymers were incorporated within a silicone matrix. These hydrolyzable polymers were chosen for the well-known hydrolytic degradation mechanism of their main chain, e.g. poly(ε-caprolactone) (PCL), or of their ester pending groups, e.g. poly(bis(trimethylsilyloxy)methylsilyl methacrylate) (PMATM2). The degradation kinetics of such hydrolyzable silicone coatings were assessed by mass loss measurements during immersion in deionized water. Coatings containing PMATM2 exhibited a maximum mass loss after 12 weeks, whereas PCL-based coatings showed no significant mass loss after 24 weeks. Dynamic contact angle measurements revealed the modifications of the coatings surface chemistry with an amphiphilic behavior after water exposure. The attachment of macrofoulers on these coatings were evaluated by field tests in the Mediterranean Sea, demonstrating the short or long-term antifouling effect of these hydrolyzable polymers embedded in the silicone matrix. The settlement of A. amphitrite barnacles on the different coatings indicated inhospitable behaviors towards larval barnacles for coatings with at least 15 wt % of additives.

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“…The immobilization of compound 2 onto silicon substrates was accomplished in two steps. The first step comprised surface activation with oxygen plasma, resulting in hydroxy terminated silicon and quartz surfaces, respectively. − Whereas the silicon wafers were only activated and modified on the polished surface (top), the quartz plates were activated on the top and bottom sides to couple the photoinitiator to both sides. Immobilization of initiating species was carried out by immersing the previously activated substrates in a THF solution of compound 2 and DIPEA at 60 °C for 24 h. We propose that this reaction follows a nucleophilic substitution pathway according to Scheme .…”

Section: Resultsmentioning

confidence: 99%

Surface-Initiated Polymerizations Mediated by Novel Germanium-Based Photoinitiators

Mueller

Drusgala

Fischer

et al. 2023

ACS Appl. Mater. Interfaces

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Since surface-initiated photopolymerization techniques have gained increasing interest within the last decades, the coupling of photoinitiators to surfaces and particles has become an important research topic in material and surface sciences. In terms of surface modification and functionalization, covalently coupled photoinitiators and subsequent photopolymerizations are employed to provide a huge variety of surface properties, such as wettability, stimulus responsive features, antifouling behavior, protein binding, friction control, drug delivery, and many more. For this purpose, numerous type I and type II photoinitiators or other photosensitive moieties have been attached to different substrates so far. In our studies, a convenient and straightforward synthetic protocol to prepare a novel germanium-based photoinitiator (bromotris(2,4,6-trimethylbenzoyl)germane) in good yields was developed. The immobilization of this photoinitiator at the surface of silicon wafers and quartz plates was evidenced by X-ray photoelectron spectroscopy (XPS). Employing visible-light-triggered surface-initiated polymerization of different functional monomers, including acrylamide, perfluorodecyl acrylate, and fluorescein-o-acrylate, surfaces with various features such as hydrophilic/hydrophobic and fluorescent properties were prepared. This was also achieved in a spatially resolved manner. The polymer layers were characterized by contact angle measurements, UV−vis/fluorescence spectroscopy, spectroscopic ellipsometry, and XPS. The thicknesses of the surface grafted polymer layers ranged between 10 and 126 nm.

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Self-assembled perfluoroalkylsilane films on silicon substrates for hydrophobic coatings

Cited by 22 publications

References 60 publications

Amphiphilic zwitterionic-PDMS-based surface-modifying additives to tune fouling-release of siloxane-polyurethane marine coatings

Amphiphilic zwitterionic-PDMS-based surface-modifying additives to tune fouling-release of siloxane-polyurethane marine coatings

Hydrolyzable Additive-Based Silicone Elastomers: A New Approach for Antifouling Coatings

Surface-Initiated Polymerizations Mediated by Novel Germanium-Based Photoinitiators

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