Fabrication of Hydrophilic Polymer Brushes on Polystyrene Substrate by Plasma-based Surface Functionalization

Sasai, Yasushi; Komatsu, Akihiro; Kondo, Shinichi; Yamauchi, Yukiko; Kuzuya, Masayuki

doi:10.2494/photopolymer.25.551

Cited by 3 publications

(5 citation statements)

References 14 publications

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“…For both syngas and ozone treatment, dynamic contact angles decrease below 30°after treatment, which correspond to highly hydrophilic surface properties. 23 When compared with the results obtained using ozone and previous results from other studies, 33,36,38,58 this important drop in contact angle clearly demonstrates the effective surface modification of polystyrene through syngas PICVD under lowenergy UVC light. A sharp increase of the polar surface energy component (γ s p ) was observed following the surface treatment, while the dispersive component (γ s d ) increased only slightly.…”

Section: ■ Results and Discussionsupporting

confidence: 59%

“…Figure shows a sessile drop water contact angle on polystyrene before and after treatment, while average advancing and receding contact angle measurements, total surface energy, and surface energy components before and after treatment are reported in Table . For both syngas and ozone treatment, dynamic contact angles decrease below 30° after treatment, which correspond to highly hydrophilic surface properties …”

Section: Resultsmentioning

confidence: 99%

“…Traditional CVD uses heat as the energy source required for functionalization, although CVD variants using plasma or UV light are preferred to functionalize substrates sensitive to heat 22 such as polystyrene. Radio frequency 23 and microwave [24][25] plasma CVD efficiently functionalize polystyrene both at low pressure 3 or atmospheric pressure, 26 using either oxygen (O 2 ), 25,27 argon (Ar), 23,25,[28][29] air 30 or helium/nitrogen mixtures (He/N 2 ) 31 as gas precursors. In order to maximize functional groups retention, keep a better control on the process and save costs, one would prefer to replace plasma CVD by luminous CVD, since the latter employs a lower energy source such as light.…”

Section: Introductionmentioning

confidence: 99%

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Gas-Phase Surface Engineering of Polystyrene Beads Used to Challenge Automated Particle Inspection Systems

Labonté

Marion

Virgilio

2016

Ind. Eng. Chem. Res.

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Container challenge sets, used in the qualification and validation of automated visible particle inspection systems in the parenteral drug industry, are prepared by seeding a single standardized polystyrene-divinylbenzene (PS-DVB) bead inside the commercial product to mimic foreign particulates. Due to its low surface energy and wettability, the bead adheres to container walls, hindering its detection by the motion based inspection system. The aim of this research is to modify the surface properties of the bead in such a way that it repulses the inner walls and stays in suspension inside the liquid product. The surface treatment consists of a photoinduced chemical vapor deposition (PICVD) process using syngas and UVC light. Following 2 treatment, newly grafted C-OH, C-O-C, C=O and COOH functional groups on the bead's surface are observed by XPS and FTIR spectroscopy, leading to an increase in the surface energy from 31 ± 1 to 65 ± 2 mJ/m 2 , and a corresponding zeta potential decrease from -38 mV to -61 mV.Finally, treated 100 µm, 200 µm and 500 µm PS-DVB beads suspended in water exhibit higher dispersion stability over time than untreated beads. These results show the potential of syngas PICVD to provide an effective solution to the stability issue of containers challenge sets for the validation of automated particle inspection systems, enabling significant savings of time and money to the parenteral drug industry.

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Section: ■ Results and Discussionsupporting

confidence: 59%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Gas-Phase Surface Engineering of Polystyrene Beads Used to Challenge Automated Particle Inspection Systems

Labonté

Marion

Virgilio

2016

Ind. Eng. Chem. Res.

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“…We have previously reported that the synthesis of welldefined poly(acrylic acid) (pAAc) brushes on PS substrate by surface-initiated atom transfer radical polymerization (ATRP) of sodium acrylate in aqueous media. [5] Figure 1 shows the reaction scheme for the construction of pAAc-grafted layer on PS substrate using ATRP. The resultant surfaces showed superhydrophilicity, which can be kept for a long period of time.…”

Section: Introductionmentioning

confidence: 99%

“…[5] The polymerization allowed to proceed at room temperature for 5h. Ar plasma irradiation to pAAc-grafted PS substrate was carried out as follows.…”

Section: Plasma Irradiation To Paac-grafted Ps Substratementioning

confidence: 99%

Plasma Irradiation to Poly(acrylic acid) Brushes fabricated on Polystyrene Substrate and its Characterization

Sasai

Komatsu

Kondo

et al. 2014

J. Photopol. Sci. Technol.

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Plasma/Ozone Induced PolyNaSS Graft-Polymerization onto PEEK Biomaterial for Bio-integrated Orthopedic Implants

Karthik,

Pillai,

Moreno

et al. 2024

JOM

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Owing to its superior bulk mechanical properties, poly (ether ether ketone) (PEEK) has gained popularity over the past 15 years as a metal substitute in biomedical implants. Low surface energy is a fundamental issue with PEEK implants. This low surface energy caused by a moderately hydrophobic surface may be able to inhibit cellular adherence and result in the development of an inflammatory response, which may result in cell necrosis and apoptosis. In this work, plasma and ozone treatments have been utilized to surface activate PEEK and graft ionic bioactive polymer polyNaSS (poly (sodium styrene sulfonate)) successfully on the surface to promote cellular attachment and biomineralization. The main goal of our research has been to find a stable green process for surface modification of PEEK by plasma/ozone approaches to increase PolyNaSS grafting efficiency and biomineralization. To further the field of bioactive orthopedic and dental implant technology, this research attempts to address a significant constraint of PEEK implants while preserving their favorable mechanical properties.

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Fabrication of Hydrophilic Polymer Brushes on Polystyrene Substrate by Plasma-based Surface Functionalization

Cited by 3 publications

References 14 publications

Gas-Phase Surface Engineering of Polystyrene Beads Used to Challenge Automated Particle Inspection Systems

Gas-Phase Surface Engineering of Polystyrene Beads Used to Challenge Automated Particle Inspection Systems

Plasma Irradiation to Poly(acrylic acid) Brushes fabricated on Polystyrene Substrate and its Characterization

Plasma/Ozone Induced PolyNaSS Graft-Polymerization onto PEEK Biomaterial for Bio-integrated Orthopedic Implants

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