Reactive sputtering deposition of plasma polymerized nylon films with embedded NHx groups

Prysiazhnyi, Vadym; Kratochvíl, Jiří; Kylián, Ondřej; Straňák, Vítězslav

doi:10.1016/j.surfcoat.2019.02.046

Cited by 2 publications

(3 citation statements)

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“…The second was a peak at 1130 cm −1 associated with C-C skeletal backbone stretches, and finally, the bands at 880 cm −1 , 1300 cm −1 , and 1440 cm −1 were due to CH 2 rocking, twisting, and banding respectively [41]. The low intensity of the Raman signal was due to the strong fluorescence of the deposited film under laser excitation, but also confirmed the random structure of the plasma-deposited polymer material, as reported by other authors [42]. Figure 6 shows examples of the curves obtained during the nanoindentation test in multiload mode.…”

Section: Morphology and Raman Spectroscopy Of Nylon-coated Boron-dopsupporting

confidence: 86%

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Physicochemical and Mechanical Performance of Freestanding Boron-Doped Diamond Nanosheets Coated with C:H:N:O Plasma Polymer

et al. 2020

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The physicochemical and mechanical properties of thin and freestanding heavy boron-doped diamond (BDD) nanosheets coated with a thin C:H:N:O plasma polymer were studied. First, diamond nanosheets were grown and doped with boron on a Ta substrate using the microwave plasma-enhanced chemical vapor deposition technique (MPECVD). Next, the BDD/Ta samples were covered with nylon 6.6 to improve their stability in harsh environments and flexibility during elastic deformations. Plasma polymer films with a thickness of the 500-1000 nm were obtained by magnetron sputtering of a bulk target of nylon 6.6. Hydrophilic nitrogen-rich C:H:N:O was prepared by the sputtering of nylon 6.6. C:H:N:O as a film with high surface energy improves adhesion in ambient conditions. The nylon-diamond interface was perfectly formed, and hence, the adhesion behavior could be attributed to the dissipation of viscoelastic energy originating from irreversible energy loss in soft polymer structure. Diamond surface heterogeneities have been shown to pin the contact edge, indicating that the retraction process causes instantaneous fluctuations on the surface in specified microscale regions. The observed Raman bands at 390, 275, and 220 cm −1 were weak; therefore, the obtained films exhibited a low level of nylon 6 polymerization and short-distance arrangement, indicating crystal symmetry and interchain interactions. The mechanical properties of the nylon-on-diamond were determined by a nanoindentation test in multiload mode. Increasing the maximum load during the nanoindentation test resulted in a decreased hardness of the fabricated structure. The integration of freestanding diamond nanosheets will make it possible to design flexible chemical multielectrode sensors.Materials 2020, 13, 1861 2 of 15 counterparts [4,5]. Since the first exfoliated graphene flake, the field of thin-layered materials and their possible applications have increased significantly, resulting in numerous papers on semiconducting nanomaterials including phosphorene [6], germanene [7], silicene [8], and carbon materials such as graphene [9], nanowall [10], and nanodiamond [11]. Nevertheless, the incorporation of nanoscale materials into various, well-defined architectures is still challenging. The majority of nanomaterials are fabricated with the requirement of a supporting substrate [12], which creates many obstacles in their integration into nanomaterial-based devices [13]. The design of these nanoscale devices demands the development of flexible freestanding nanostructures, providing additional accessibility to multidimensional interactions.Diamond, among other carbon materials, is recognized for its excellent mechanical [14] and optical [15] properties, and outstanding biocompatibility [16]. Even though pristine diamond is electrically insulating, it can become a semiconductor by incorporating dopants into its structure [17]. One of the most commonly used dopants is boron, changing diamond into a p-type semiconductor, and allowing diamond-based structures to be an important ...

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Section: Morphology and Raman Spectroscopy Of Nylon-coated Boron-dopsupporting

confidence: 86%

“…The broadening of the Raman bands indicated a decrease of the material crystallinity, and pointed to a more random structure. Such behavior is common for plasma-deposited polymer films, and reported by other authors [42,54].…”

Section: Discussionsupporting

confidence: 72%

Physicochemical and Mechanical Performance of Freestanding Boron-Doped Diamond Nanosheets Coated with C:H:N:O Plasma Polymer

et al. 2020

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“…[33,34] It can be realized simply by introducing a precursor gas feed directly in the deposition chamber as the polymerization occurs directly in the magnetron discharge. As we applied C:F hydrophobic coatings as a stabilization hydrophobic biocompatible barrier for nanoparticles [35] and hydrophilic amino-rich C:H:N:O films for antibiotics immobilization and diffusion barriers, [36,37] we looked at methods to control material properties, mainly tailor wettability of plasma polymers as a dependence of a single parameter.…”

Section: Introductionmentioning

confidence: 99%

Tailored wettability of plasma polymers made of C–F, C–H, and N–H

Prysiazhnyi

Kratochvíl

Straňák

2019

Plasma Processes & Polymers

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New trends toward green technologies and broad utilization of polymers have led to intense research on surfaces with controlled wettability. This study demonstrates an easy method to control the wettability (estimated by static water contact angle [WCA]) of a polymer surface by introducing a proper ratio of C–F, C–H, and N–H bonds. The preparation method combines magnetron sputtering from a polytetrafluoroethylene (PTFE) target and plasma‐enhanced chemical vapor deposition (PECVD) from a nitrogen/acetylene mixture, making it environment‐friendly, unlike PECVD from hydrocarbons/fluorocarbons. The proposed method allows depositing plasma polymers with WCAs from 110° to 17° by varying only the gas composition. The corresponding plasma polymers consist of C:F (magnetron sputtering of PTFE), C:F:N:H (reactive magnetron sputtering and PECVD), and a‐C:H (PECVD from acetylene).

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Reactive sputtering deposition of plasma polymerized nylon films with embedded NHx groups

Cited by 2 publications

References 38 publications

Physicochemical and Mechanical Performance of Freestanding Boron-Doped Diamond Nanosheets Coated with C:H:N:O Plasma Polymer

Physicochemical and Mechanical Performance of Freestanding Boron-Doped Diamond Nanosheets Coated with C:H:N:O Plasma Polymer

Tailored wettability of plasma polymers made of C–F, C–H, and N–H

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