Low pressure plasma modified polycarbonate: A transparent, low reflective and scratch resistant material for automotive applications

Vietro, Nicoletta De; Belforte, Luca; Lambertini, V.; Fracassi, Francesco

doi:10.1016/j.apsusc.2014.04.105

Cited by 27 publications

(15 citation statements)

References 22 publications

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“…22,23 Here, we have explored the possibility to use a low pressure plasma sputtering technique for the deposition of TiO2 on Spanish Broom cellulose surface. Generally, non-equilibrium plasma processes, both at low or atmospheric pressure, are ecofriendly, versatile and, thanks to their low temperature (near to room), allow the modification of the uppermost layers of flat substrates, 24 fibers or granules, [25][26][27][28][29] without changing their bulk properties.…”

Section: Introductionmentioning

confidence: 99%

Photocatalytic inactivation of Escherichia coli bacteria in water using low pressure plasma deposited TiO2 cellulose fabric

Vietro

Tursi

Beneduci

et al. 2019

Photochem Photobiol Sci

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Section: Introductionmentioning

confidence: 99%

Photocatalytic inactivation of Escherichia coli bacteria in water using low pressure plasma deposited TiO2 cellulose fabric

Vietro

Tursi

Beneduci

et al. 2019

Photochem Photobiol Sci

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“…Solvents were purchased from Biosolve. 1 H NMR or 13 C NMR spectra were recorded on a Varian or Bruker spectrometers, operating at 400/100 MHz or 500/125 MHz (Varian Inova). CDCl 3 with TMS as an internal standard was used as the solvent.…”

Section: Methodsmentioning

confidence: 99%

“…During the last years, the growing and large range of applications of polycarbonate‐based polymers, varying from food packaging, automotive, coatings, electronics to biomedical applications has stimulated the development of new polymerization methods. Synthetic pathways focusing on the production of well‐controlled polymers with a defined composition and a variety of architectures, as for example linear or multi‐branched, are therefore increasingly demanded.…”

Section: Introductionmentioning

confidence: 99%

Effect of a Set of Acids and Polymerization Conditions on the Architecture of Polycarbonates Obtained via Ring Opening Polymerization

Jiménez-Pardo

Ven

Benthem

et al. 2017

J. Polym. Sci. Part A: Polym. Chem.

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Polycarbonate‐based polymers with a well‐defined architecture have become interesting materials due to their large range of applications. Ring opening polymerization (ROP) has been largely applied to make branched polycarbonates. The polymer architectures obtained via this method are strictly related with the polymerization mechanisms involved which depend on the polymerization conditions chosen. Hereby, we evaluate the catalytic activity of three acids, fumaric, trifluoroacetic, and methanesulfonic on the Cationic ROP of trimethylene carbonate (TMC) over a trifunctional initiator, trimethylol propane (TMP), under different reaction conditions. In‐detail characterization of the polymers showed the co‐existence of two polymerization mechanisms: the activated monomer (AM), which produces a tri‐armed branched polycarbonate with inclusion of the TMP initiator (TMP‐PTMC), and a combined AM/Activated Chain End (ACE) mechanism, which produces a linear polycarbonate (L‐PTMC). Such mixtures were identified for nearly all the reaction variables investigated, together with other side reactions. Upon optimization of the synthesis, the polymerizations in toluene with TFA at 35 °C and equimolar acid/initiator ratio were optimal, avoiding side reactions, but still resulting in a polymer mixture composed of ∼69% TMP‐PTMC and 31% of a polycarbonate linear polymer. The occurrence of such mixed polymer architectures is commonly overlooked in literature regarding CROP of branched polycarbonates. We demonstrate the importance of performing a full characterization for a successful detection of polymer mixtures having different (number of) end‐functionalities, which are critical for further use in advanced applications, such as in the biomedical or pharmaceutical filed. © 2017 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2017, 55, 1502–1511

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“…These results relate to surface modifications by plasma of such materials as polyethylene (PE), polypropylene (PP), polytetrafluoroethylene (PTFE), polyvinyl chloride (PVC), polyester (PS), and others. Plasma-based surface activation has also been applied for polycarbonate material [31,32,33,34,35,36,37,38,39,40,41,42,43]. As was mentioned above, plasma has been used for surface modifications of various kinds of plastic materials.…”

Section: Introductionmentioning

confidence: 99%

“…At the same time, different types of plasmas have been used in terms of the kind of plasma-forming gas, the pressure, and the method of plasma generation. For instance, considering the methods of plasma generation, DC plasma [20,23,36,37,38], DBD plasma [18,35,40], corona discharge [42,43], RF plasma [17,19,20,22,31,32,34,39], and microwave plasma [25,33] have been used for the modification of different plastic materials.…”

Section: Introductionmentioning

confidence: 99%

Surface Modification of Polycarbonate by an Atmospheric Pressure Argon Microwave Plasma Sheet

et al. 2019

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The specific properties of an atmospheric pressure plasma make it an attractive tool for the surface treatment of various materials. With this in mind, this paper presents the results of experimental investigations of a polycarbonate (PC) material surface modification using this new type of argon microwave (2.45 GHz) plasma source. The uniqueness of the new plasma source lies in the shape of the generated plasma—in contrast to other microwave plasma sources, which usually provide a plasma in the form of a flame or column, the new ones provides a plasma in the shape of a regular plasma sheet. The influence of the absorbed microwave power and the number of scans on the changes of the wettability and morphological and mechanical properties of the plasma-treated PC samples was investigated. The mechanical properties and changes in roughness of the samples were measured by the use of atomic force microscopy (AFM). The wettability of the plasma-modified samples was tested by measuring the water contact angle. In order to confirm the plasma effect, each of the above-mentioned measurements was performed before and after plasma treatment. All experimental tests were performed with an argon of flow rate up to 20 L/min and the absorbed microwave power ranged from 300 to 850 W. The results prove the capability of the new atmospheric pressure plasma type in modifying the morphological and mechanical properties of PC surfaces for industrial applications.

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Low pressure plasma modified polycarbonate: A transparent, low reflective and scratch resistant material for automotive applications

Cited by 27 publications

References 22 publications

Photocatalytic inactivation of Escherichia coli bacteria in water using low pressure plasma deposited TiO2 cellulose fabric

Photocatalytic inactivation of Escherichia coli bacteria in water using low pressure plasma deposited TiO2 cellulose fabric

Effect of a Set of Acids and Polymerization Conditions on the Architecture of Polycarbonates Obtained via Ring Opening Polymerization

Surface Modification of Polycarbonate by an Atmospheric Pressure Argon Microwave Plasma Sheet

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