Effect of sulfonated poly (ether ether ketone) on the sensitivity of polyvinylidene fluoride-based resistive humidity sensors
التاريخ
2020المؤلف
Mallick S.Ahmad Z.
Eribi A.
Parangusan H.
Bhadra J.
Hassan M.K.
Al-Thani N.J.
Touati F.
Al-Muhtaseb S.
...show more authors ...show less authors
البيانات الوصفية
عرض كامل للتسجيلةالملخص
We have investigated the effect of sulfonated poly (ether ether ketone) (SPEEK) on the thermal stability, hydrophilicity, and sensitivity of polyvinylidene fluoride (PVDF) films based resistive humidity sensors. The blended film was deposited on the pre-patterned interdigited ITO glass electrode by the spin coating technique. The thermal stability of the PVDF-SPEEK composites investigated by thermogravimetric analysis. The surface morphology of the composite blend films has been studied by field emission scanning electron microscopy and atomic force microscopy analyses. The morphology of the PVDF-SPEEK blend films indicates that the PVDF-SPEEK blend is not uniform at high concentrations of SPEEK (over 10 wt%). The hydrophilicity of the sensing film studied by the contact angle method. As the concentration of SPEEK increases in the blend film, the hydrophilicity of the composite film also increases, which enhances the sensitivity of the sensing film. The impedance response of the PVDF-SPEEK blend film shows that the addition of SPEEK enhances the sensitivity of the sensing film at a lower humidity level. Moreover, the response and recovery times of the PVDF-SPEEK (2.5−5 wt%) are found to be 25 s and 65 s, respectively
المجموعات
- الأبحاث [1375 items ]
- الهندسة الكيميائية [1172 items ]
- الهندسة الكهربائية [2647 items ]
- أبحاث مركز جامعة قطر للعلماء الشباب [204 items ]
وثائق ذات صلة
عرض الوثائق المتصلة بواسطة: العنوان، المؤلف، المنشئ والموضوع.
-
Synthesis and cytotoxic activity of MOM-ether analogs of isosteviol
Malki, Ahmed; Laha, Rumita; Bergmeier, Stephen C. ( Elsevier Ltd , 2014 , Article)Lung cancer is one of the most common malignancies worldwide. In this Letter, novel MOM-ether analogs of isosteviol were designed and synthesized to be tested for anticancer activities against H1299 lung cancer cell lines. ... -
Mechanochemical Conversion of Aromatic Amines to Aryl Trifluoromethyl Ethers
Jakubczyk, Michał; Mkrtchyan, Satenik; Shkoor, Mohanad; Lanka, Suneel; Budzák, Šimon; Iliaš, Miroslav; Skoršepa, Marek; Iaroshenko, Viktor O.... more authors ... less authors ( American Chemical Society , 2022 , Article)Increased interest in the trifluoromethoxy group in organic synthesis and medicinal chemistry has induced a demand for new, selective, general, and faster methods applicable to natural products and highly functionalized ... -
Ether, sulfide and sulfone derivatives of cinnamaldehyde: Insights into synthesis, structural elucidation and solvatochromism
Al-Marri, Jawaher S.; Shraim, Amjad M.; Salih, Kifah S.M. ( Elsevier B.V. , 2024 , Article)Symmetric ether, sulfide and sulfone derivatives based on Schiff base functionalized group (3a-c) were synthesized via classical condensation of 4,4′-diaminodiphenyl precursors (1a-c) and cinnamaldehyde (2) in methanol at ...