Functional poly(urethane-imide)s containing Lewis bases for SO2 detection by Love surface acoustic wave gas micro-sensors

Youssef, Ismail Ben; Alem, Halima; Sarry, F.; Elmazria, O.; Riobóo, R. J. Jiménez; Arnal-Hérault, Carole; Jonquières, Anne

doi:10.1016/j.snb.2013.04.120

Cited by 22 publications

(16 citation statements)

References 50 publications

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“…As mentioned before, we have already studied the response of AT‐cut quartz resonators coated with polyurethaneimide (PUI), containing a controlled number of tertiary amine groups brought by the N ‐methyldiethanolamine (MDEA) group incorporated on the polymer backbone . Thanks to using our QCM unit, Figure , we could show for the first time that pyridine and HMI display physical sorption in the film, essentially driven by hydrogen bonds.…”

Section: Introductionmentioning

confidence: 95%

Layer thickness impact on the capacity of poly(urethaneimide) for sorbing toxic gases

Kolev

Alexieva

Strashilov

et al. 2016

J of Applied Polymer Sci

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The sensitivity of a thick layer (500 nm) of poly(urethaneimide) to toxic gases such as pyridine and hexamethyleneimine was studied by the quartz crystal microbalance method. The resonant frequency was registered by a spectrum analyzer. The successful overcoming of the unfavorable impact of the increased viscous damping, typical for the standard oscillator measurement method, allowed complete understanding of the behavior of a thick polymer layer toward highly pollutant gases. Quantitative information for polymer adsorption capacity and gas diffusivity was extracted. The comparison with our recent results for thinner layers revealed strong dependence on layer thickness for pyridine whereas the corresponding effect with hexamethyleneimine was found much less significant. Intermolecular interactions and the impact of the gas physical adsorption on the polymer matrix properties were shown as the driving parameters for the sensors response. The thickness dependence provides a tool for tuning the sensitivity of a potentially efficient poly(urethaneimide) sensor for pyridine.

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Section: Introductionmentioning

confidence: 95%

Layer thickness impact on the capacity of poly(urethaneimide) for sorbing toxic gases

Kolev

Alexieva

Strashilov

et al. 2016

J of Applied Polymer Sci

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“…The interdigital transducers were photolithographically defined in Al metallization, with center frequency of 150MHz and periodicity of 33μm. Electrode width controlled single phase unidirectional transducer (EWC/SPUDT) structure was patterned to reduce the insertion loss [8], as in Fig.1 …”

Section: Fabrication Of Love Wave Devicementioning

confidence: 99%

An experimental research of love wave sensor based on LiTaO<inf>3</inf>/SiO<inf>2</inf> structure

Chen

Xie

Wang

et al. 2014

Proceedings of the 2014 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications

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Temperature characteristics of SiO 2 -coated Love Wave oscillators are presented from 10 o C to 60 o C. Surface skimming bulk wave (SSBW) and Love Wave delay line devices were fabricated on the 36 o YX-LiTaO 3 substrate. Near zero TCF of SiO 2 -coated Love Wave oscillators from 10 o C to 60 o C are demonstrated in the 150MHz range. In the gas sensor experiment on dimethylmethylphosphonate (DMMP) detection, the fabricated SXFA-coated chemical sensor exhibited a threshold detection limit and high sensitivity.

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“…Until now, 1,4-piperazinediethanol was used for the preparation of flame retardant polyurethane formulations with a large variety of applications. [13][14][15][16] This diol was also applied to obtain antibacterial soybean-oilbased cationic polyurethane coatings, 17 functional poly (urethane-imide)s containing Lewis bases for SO 2 detection, 18 ionomeric polyurethanes with different ionization degree 19 and pH-triggered charge-reversal polyurethane micelles for controlled release of doxorubicin. 20 Through the ability of the piperazine nitrogen to accept protons and then to be deprotonated, PDE was used as pH-sensitive segment offering pH buffering capacity.…”

Section: Introductionmentioning

confidence: 99%

An insight on the effect of the hard segment domain on the thermo‐mechanical and surface properties of new piperazine‐based polyurethanes

Potolinca¹,

Oprea²

2022

J of Applied Polymer Sci

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1,4‐piperazinediethanol was used as chain extender in the synthesis of new polyurethanes based on poly (tetramethylene oxide) glycol and 1,6‐hexamethylene diisocyanate. Also new polyurethanes which contain renewable cross‐linkers (polyethylene glycol sorbitan monolaurate (Tween® 20) and sorbitan monolaurate (Span® 20)) were obtained. The degree of microphase separation and the weight fraction of hydrogen‐bonded urethane groups is calculated by FTIR spectroscopy. The thermal, mechanical, and surface properties are examined and related with the structure of the corresponding polyurethanes. Linear polyurethanes have good thermal stability with the 5% weight loss in the range 250–280°C and cross‐linked samples in the range 295–320°C. Tensile strength and elongation at break have higher values (38 MPa and 1140%) when the 1,4‐piperazinediethanol content is lower. The increase in the piperazine content leads to more hydrophilic polyurethane surface. Cross‐linkers increase the water contact angle and thus the surface of the corresponding polyurethanes becomes hydrophobic.

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Functional poly(urethane-imide)s containing Lewis bases for SO2 detection by Love surface acoustic wave gas micro-sensors

Cited by 22 publications

References 50 publications

Layer thickness impact on the capacity of poly(urethaneimide) for sorbing toxic gases

Layer thickness impact on the capacity of poly(urethaneimide) for sorbing toxic gases

An experimental research of love wave sensor based on LiTaO<inf>3</inf>/SiO<inf>2</inf> structure

An insight on the effect of the hard segment domain on the thermo‐mechanical and surface properties of new piperazine‐based polyurethanes

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