scholarly journals Organic acids can crosslink poly(ionic liquid)s into mesoporous polyelectrolyte complexes

2013 ◽  
Vol 4 (8) ◽  
pp. 2432 ◽  
Author(s):  
Qiang Zhao ◽  
Sebastian Soll ◽  
Markus Antonietti ◽  
Jiayin Yuan
Keyword(s):  
Ionic Liquid ◽  
Organic Acids ◽  
Polyelectrolyte Complexes ◽  
Poly Ionic Liquid

Tuning the Pore Size in Gradient Poly(ionic liquid) Membranes by Small Organic Acids

2014 ◽  
Vol 4 (1) ◽  
pp. 39-42 ◽  
Author(s):  
Karoline Täuber ◽  
Qiang Zhao ◽  
Markus Antonietti ◽  
Jiayin Yuan
Keyword(s):  
Ionic Liquid ◽  
Organic Acids ◽  
Pore Size ◽  
Liquid Membranes ◽  
Poly Ionic Liquid

Highly Sensitive Gas-Sensing Films for Volatile Organic Acids from Imidazolium-Based Poly(ionic liquid)s

2020 ◽  
Vol 20 (6) ◽  
pp. 3588-3597 ◽  
Author(s):  
Yehao Zhang ◽  
Xu Qiao ◽  
Wenli Zhao ◽  
Jiao Sun ◽  
Qin Tang ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Volatile Organic Compounds ◽  
Organic Acids ◽  
Organic Compounds ◽  
Quartz Crystal ◽  
Main Chain ◽  
Imidazolium Cation ◽  
Volatile Organic ◽  
Volatile Organic Acids ◽  
Poly Ionic Liquid

Imidazolium-based poly(ionic liquid)s were synthesized and used as sensing film for the adsorption of volatile organic compounds. Based on a quartz crystal microbalance system, the sensing properties of the imidazolium-based poly(ionic liquid)s on volatile organic compounds was assessed according to the position of imidazolium cation in the polymer chain (the main-chain or side-chain type) and the varied counterions. The results indicated that the imidazolium-based poly(ionic liquid)s films have much higher adsorption capability on volatile organic acids than other volatile organic compounds, which is due to the strong affinity between imidazolium group and the carboxyl group. The position of imidazolium cation in the polymer chain and counterions of the imidazolium-based poly(ionic liquid)s was found to be able to influence the selectivity and sensitivity of volatile organic acids. The main-chain imidazolium-based poly(ionic liquid)s were shown strengthen the adsorption of propionic acid vapor, while the counter ion of dicyanamide showed the highest selectivity on volatile organic acids. Based on the quartz crystal microbalance sensing system, the imidazoliumbased poly(ionic liquid)s film was shown capable of detecting volatile organic acids with a theoretical detection limit of about 3.1 ppb and a quick recovery time less than 40 seconds. The sensing performance is also stable for repeated usage and after long-time storage.

A Novel Poly(Ionic Liquid) as the Thermal Insulating Material

2020 ◽  
Vol 13 (3) ◽  
pp. 241-247
Author(s):  
Wenxin Wei ◽  
Guifeng Ma ◽  
Hongtao Wang ◽  
Jun Li
Keyword(s):  
Thermal Conductivity ◽  
Ionic Liquid ◽  
Glass Transition ◽  
Transition Temperature ◽  
Glass Transition Temperature ◽  
Flame Resistance ◽  
Insulating Material ◽  
Low Thermal Conductivity ◽  
Thermal Insulating ◽  
Poly Ionic Liquid

Objective: A new poly(ionic liquid)(PIL), poly(p-vinylbenzyltriphenylphosphine hexafluorophosphate) (P[VBTPP][PF6]), was synthesized by quaternization, anion exchange reaction, and free radical polymerization. Then a series of the PIL were synthesized at different conditions. Methods: The specific heat capacity, glass-transition temperature and melting temperature of the synthesized PILs were measured by differential scanning calorimeter. The thermal conductivities of the PILs were measured by the laser flash analysis method. Results: Results showed that, under optimized synthesis conditions, P[VBTPP][PF6] as the thermal insulator had a high glass-transition temperature of 210.1°C, high melting point of 421.6°C, and a low thermal conductivity of 0.0920 W m-1 K-1 at 40.0°C (it was 0.105 W m-1 K-1 even at 180.0°C). The foamed sample exhibited much low thermal conductivity λ=0.0340 W m-1 K-1 at room temperature, which was comparable to a commercial polyurethane thermal insulating material although the latter had a much lower density. Conclusion: In addition, mixing the P[VBTPP][PF6] sample into polypropylene could obviously increase the Oxygen Index, revealing its efficient flame resistance. Therefore, P[VBTPP][PF6] is a potential thermal insulating material.

Modular Platform for Synthesis of Poly(Ionic Liquid) Electrolytes for Electrochemical Applications in Supercapacitors

2021 ◽  
Vol 6 (15) ◽  
pp. 3795-3801
Author(s):  
Radostina Kalinova ◽  
Ivaylo Dimitrov ◽  
Christo Novakov ◽  
Svetlana Veleva ◽  
Antonia Stoyanova
Keyword(s):  
Ionic Liquid ◽  
Liquid Electrolytes ◽  
Electrochemical Applications ◽  
Modular Platform ◽  
Poly Ionic Liquid

Facile fabrication of self-reporting micellar and vesicular structures based on etching-ion exchange strategy of photonic composite spheres of poly(ionic liquid)

Nanoscale ◽  
2021 ◽  
Author(s):  
Ning Gao ◽  
Kang Zhou ◽  
Kai Feng ◽  
Wanlin Zhang ◽  
Jiecheng Cui ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Ion Exchange ◽  
Chemical Environment ◽  
Facile Fabrication ◽  
Poly Ionic Liquid

Micellar and vesicular structures capable of sensing and reporting the chemical environment as well as facilely introducing user-defined functions make a vital contribution to constructing versatile compartmentalized systems. Herein, combing...

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