Tunable surface topography in fluoropolymers using photo-embossing

Kommeren, Sander; Sullivan, Timothy M.; Bastiaansen, Cwm Cees

doi:10.1039/c6ra13801b

Cited by 5 publications

(9 citation statements)

References 28 publications

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“…We also prepared temperature responsive surface topographies by polymerization‐induced diffusion . The red reflecting mixture M1 was coated and illuminated with UV light through a photomask with hexagonally arranged hexagons.…”

Section: Resultsmentioning

confidence: 99%

“…We also prepared temperature responsive surface topographies by polymerization-induced diffusion. [54][55][56][57][58]60,61] The red reflecting mixture M1 was coated and illuminated with UV light through a photomask with hexagonally arranged hexagons. Due to depletion of the RMs by photopolymerization, diffusion of RMs from the nonexposed areas to the exposed areas takes place.…”

Section: Temperature Responsive Surface Topographies By Photoinduced mentioning

confidence: 99%

“…After polymerization, a nonvolatile coating is obtained of which the responsive properties can be tuned by the choice of monomers . In addition, patterned surfaces of RMs can easily be fabricated by photoinduced diffusion to create structured optical features and surface topographies . Usually, the topographical and reflectivity responses are limited due to the high crosslink density of these glassy networks, so solvents or low molecular weight LCs are required to enhance the response.…”

Section: Introductionmentioning

confidence: 99%

“…[46][47][48][49][50] In addition, patterned surfaces of RMs can easily be fabricated by photoinduced diffusion to create structured optical features and surface topographies. [26,46,[51][52][53][54][55][56][57][58][59] Usually, the topographical and reflectivity responses are limited due to the high crosslink density of these glassy networks, so solvents or low molecular weight LCs are required to enhance the response. For example, Stumpel et al reported on a hydrogen bonded LCN in which swelling and deswelling by water resulted in topography and reflectivity changes.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Easily Processable and Programmable Responsive Semi‐Interpenetrating Liquid Crystalline Polymer Network Coatings with Changing Reflectivities and Surface Topographies

Kragt

Broer

Schenning

2017

Adv Funct Materials

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The fabrication of stimulus-responsive coatings that change both reflectivity and topography is hampered by the lack of easy processable, patternable, and programmable elastomers. Here, an easily applied reflective coating based on a semi-interpenetrating polymer network composed of a liquid crystal elastomer and a liquid crystal network (>15 wt%) is reported. The reflective wavelength of these polysiloxane elastomer photonic coatings can be readily programed by the concentration of chiral reactive mesogen dopant that forms the network. The coatings show a fast and reversible decrease in reflection band intensity with increasing temperature, which can be tuned by the polymer network density. In addition, hierarchical surface relief structures are prepared, which can be reversibly changed with temperature.

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Section: Resultsmentioning

confidence: 99%

Section: Temperature Responsive Surface Topographies By Photoinduced mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Easily Processable and Programmable Responsive Semi‐Interpenetrating Liquid Crystalline Polymer Network Coatings with Changing Reflectivities and Surface Topographies

Kragt

Broer

Schenning

2017

Adv Funct Materials

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“…Surface topographies and reliefs can be created in multiple ways, either by physically imprinting (embossing [15,16]) or by manipulation of the material itself using light, temperature, pH, and/or solvent-swelling. Interestingly, light allows for a remote, contactless approach without changing the chemical environment.…”

Section: Introductionmentioning

confidence: 99%

Light-Triggered Formation of Surface Topographies in Azo Polymers

et al. 2017

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Properties such as friction, wettability and visual impact of polymer coatings are influenced by the surface topography. Therefore, control of the surface structure is of eminent importance to tuning its function. Photochromic azobenzene-containing polymers are an appealing class of coatings of which the surface topography is controllable by light. The topographies form without the use of a solvent, and can be designed to remain static or have dynamic properties, that is, be capable of reversibly switching between different states. The topographical changes can be induced by using linear azo polymers to produce surface-relief gratings. With the ability to address specific regions, interference patterns can imprint a variety of structures. These topographies can be used for nanopatterning, lithography or diffractive optics. For cross-linked polymer networks containing azobenzene moieties, the coatings can form topographies that disappear as soon as the light trigger is switched off. This allows the use of topography-forming coatings in a wide range of applications, ranging from optics to self-cleaning, robotics or haptics.

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Thermoplastic, rubber-like marine antifouling coatings with micro-structures via mechanical embossing

et al. 2020

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New processing routes and materials for non-biocidal, antifouling (AF) coatings with an improved performance are currently much sought after for a range of marine applications. Here, the processing, physical properties and marine AF performance of a fluorinated coating based on a thermoplastic (non-crosslinked) fluorinated polymer are reported. It was found that the addition of lubricating oil and hydrodynamic drag reducing microstructures improved the AF properties substantially, i.e. the settlement of a marine biofilm, containing mixed microalgae including diatoms, was reduced to low levels. More importantly, the remaining fouling was removed from the coatings at low hydrodynamic shear rates and promising AF properties were obtained. Moreover, additional potential benefits were revealed originating from the thermoplastic nature of the coating material which might result in significant cost reductions.

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Tunable surface topography in fluoropolymers using photo-embossing

Abstract: We describe and characterise a novel method of producing tuneable surface topography in fluorinated elastomers using a modified photo-embossing process.

Cited by 5 publications

References 28 publications

Easily Processable and Programmable Responsive Semi‐Interpenetrating Liquid Crystalline Polymer Network Coatings with Changing Reflectivities and Surface Topographies

Easily Processable and Programmable Responsive Semi‐Interpenetrating Liquid Crystalline Polymer Network Coatings with Changing Reflectivities and Surface Topographies

Light-Triggered Formation of Surface Topographies in Azo Polymers

Thermoplastic, rubber-like marine antifouling coatings with micro-structures via mechanical embossing

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