Water-soluble conjugated polymers as active elements for organic nonvolatile memories

RSC Advances ◽  
2015 ◽  
Vol 5 (39) ◽  
pp. 30542-30548 ◽  
Author(s):  
Benlin Hu ◽  
Chengyuan Wang ◽  
Jing Zhang ◽  
Kai Qian ◽  
Wangqiao Chen ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Conjugated Polymers ◽  
Memory Performance ◽  
Water Soluble ◽  
Memory Devices ◽  
Active Elements ◽  
Nonvolatile Memories ◽  
Donor Acceptor

Memory devices based on three water-soluble donor–acceptor conjugated polymers were fabricated from aqueous solution, and show excellent memory performance.

Isoindigo-Based Donor–Acceptor Conjugated Polymers for Air-Stable Nonvolatile Memory Devices

2015 ◽  
Vol 4 (3) ◽  
pp. 322-326 ◽  
Author(s):  
Walaa Elsawy ◽  
Myungwoo Son ◽  
Jisu Jang ◽  
Myung Jin Kim ◽  
Yongsung Ji ◽  
...  
Keyword(s):  
Conjugated Polymers ◽  
Nonvolatile Memory ◽  
Memory Devices ◽  
Nonvolatile Memory Devices ◽  
Donor Acceptor

Improved ternary memory performance of donor–acceptor structured molecules through cyano substitution

2015 ◽  
Vol 3 (26) ◽  
pp. 6778-6785 ◽  
Author(s):  
Qijian Zhang ◽  
Hao Zhuang ◽  
Jinghui He ◽  
Shugang Xia ◽  
Hua Li ◽  
...  
Keyword(s):  
Memory Performance ◽  
Memory Devices ◽  
Layer By Layer ◽  
Layer Stacking ◽  
Donor Acceptor ◽  
Molecular Backbone

Novelty: the forming of layer by layer stacking and the realization of excellent ternary memory devices through introducing CN groups in the molecular backbone.

Selective extraction of metallic arc-discharged single-walled carbon nanotubes by a water soluble polymethylsilane derivative

RSC Advances ◽  
2015 ◽  
Vol 5 (124) ◽  
pp. 102238-102246 ◽  
Author(s):  
Jinling Gao ◽  
Yao Huang ◽  
Yongfu Lian
Keyword(s):  
Carbon Nanotubes ◽  
Aqueous Solution ◽  
Single Walled Carbon Nanotubes ◽  
Selective Extraction ◽  
Water Soluble ◽  
Single Walled Carbon ◽  
Acceptor Complex ◽  
Donor Acceptor ◽  
A Charge ◽  
Walled Carbon Nanotubes

Arc-discharged metallic SWNTs are selectively extracted with an aqueous solution of polymethyl(1-undecylic acidyl)silane by the formation of a charge donor–acceptor complex.

Flexible memory devices with tunable electrical bistability via controlled energetics in donor–donor and donor–acceptor conjugated polymers

2014 ◽  
Vol 2 (22) ◽  
pp. 4374-4378 ◽  
Author(s):  
Hung-Ju Yen ◽  
Hsinhan Tsai ◽  
Cheng-Yu Kuo ◽  
Wanyi Nie ◽  
Aditya D. Mohite ◽  
...  
Keyword(s):  
Conjugated Polymers ◽  
Nonvolatile Memory ◽  
Memory Devices ◽  
Electrical Bistability ◽  
Nonvolatile Memory Devices ◽  
Donor Acceptor

Flexible nonvolatile memory devices were fabricated from benzodithiophene-based donor–donor and donor–acceptor 2D conjugated polymers with thermally/non-thermally recoverable memory behaviors.

Enantioselective Recognition of Chiral Guests by the Water-Soluble Chiral Keplerate {Mo132} Spherical Capsule with 30 Inner Lactate Ligands

2019 ◽  
Author(s):  
Nancy Watfa ◽  
Weimin Xuan ◽  
Zoe Sinclair ◽  
Robert Pow ◽  
Yousef Abul-Haija ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Chiral Recognition ◽  
Association Constants ◽  
Water Soluble ◽  
Enantioselective Recognition ◽  
H Nmr ◽  
Dosy Nmr ◽  
Spherical Capsule ◽  
Surface Pores ◽  
Guest Chemistry

Investigations of chiral host guest chemistry are important to explore recognition in confined environments. Here, by synthesizing water-soluble chiral porous nanocapsule based on the inorganic metal-oxo Keplerate-type cluster, {Mo<sub>132</sub>} with chiral lactate ligands with the composition [Mo<sub>132</sub>O<sub>372</sub>(H<sub>2</sub>O)<sub>72</sub>(<i>x-</i>Lactate)<sub>30</sub>]<sup>42-</sup> (<i>x</i> = D or L), it was possible to study the interaction with a chiral guest, L/D-carnitine and (<i>R</i>/<i>S</i>)-2-butanol in aqueous solution. The enantioselective recognition was studied by quantitative <sup>1</sup>H NMR and <sup>1</sup>H DOSY NMR which highlighted that the chiral recognition is regulated by two distinct sites. Differences in the association constants (K) of L- and D-carnitine, which, due to their charge, are generally restricted from entering the interior of the host, are observed, indicating that their recognition predominantly occurs at the surface pores of the structure. Conversely, a larger difference in association constants (K<i><sub>S</sub></i>/K<i><sub>R</sub></i> = 3) is observed for recognition within the capsule interior of (<i>R</i>)- and (<i>S</i>)-2-butanol.

scholarly journals Influence of Backbone Curvature on the Organic Electrochemical Transistor Performance of Glycolated Donor‐Acceptor Conjugated Polymers

2021 ◽  
Author(s):  
Bowen Ding ◽  
Gunwoo Kim ◽  
Youngseok Kim ◽  
Flurin D. Eisner ◽  
Edgar Gutiérrez-Fernández ◽  
...  
Keyword(s):  
Conjugated Polymers ◽  
Electrochemical Transistor ◽  
Donor Acceptor

scholarly journals Sulfobetaine Cryogels for Preferential Adsorption of Methyl Orange from Mixed Dye Solutions

Polymers ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 208
Author(s):  
Ramona B. J. Ihlenburg ◽  
Anne-Catherine Lehnen ◽  
Joachim Koetz ◽  
Andreas Taubert
Keyword(s):  
Aqueous Solution ◽  
Methylene Blue ◽  
Methyl Orange ◽  
Dye Removal ◽  
Selective Adsorption ◽  
Water Soluble ◽  
Organic Substances ◽  
Preferential Adsorption ◽  
Dimethyl Ammonium ◽  
Dye Solutions

New cryogels for selective dye removal from aqueous solution were prepared by free radical polymerization from the highly water-soluble crosslinker N,N,N’,N’-tetramethyl-N,N’-bis(2-ethylmethacrylate)-propyl-1,3-diammonium dibromide and the sulfobetaine monomer 2-(N-3-sulfopropyl-N,N-dimethyl ammonium)ethyl methacrylate. The resulting white and opaque cryogels have micrometer sized pores with a smaller substructure. They adsorb methyl orange (MO) but not methylene blue (MB) from aqueous solution. Mixtures of MO and MB can be separated through selective adsorption of the MO to the cryogels while the MB remains in solution. The resulting cryogels are thus candidates for the removal of hazardous organic substances, as exemplified by MO and MB, from water. Clearly, it is possible that the cryogels are also potentially interesting for removal of other compounds such as pharmaceuticals or pesticides, but this must be investigated further.

scholarly journals Backbone Effects on the Thermoelectric Properties of Ultra-Small Bandgap Conjugated Polymers

Polymers ◽  
2021 ◽  
Vol 13 (15) ◽  
pp. 2486
Author(s):  
Dexun Xie ◽  
Jing Xiao ◽  
Quanwei Li ◽  
Tongchao Liu ◽  
Jinjia Xu ◽  
...  
Keyword(s):  
Conjugated Polymers ◽  
Power Factor ◽  
Carrier Mobility ◽  
Polymeric Materials ◽  
Thermoelectric Performance ◽  
Organic Thermoelectric Materials ◽  
Higher Power ◽  
Donor Acceptor ◽  
Maximum Power Factor ◽  
Higher Carrier Mobility

Conjugated polymers with narrower bandgaps usually induce higher carrier mobility, which is vital for the improved thermoelectric performance of polymeric materials. Herein, two indacenodithiophene (IDT) based donor–acceptor (D-A) conjugated polymers (PIDT-BBT and PIDTT-BBT) were designed and synthesized, both of which exhibited low-bandgaps. PIDTT-BBT showed a more planar backbone and carrier mobility that was two orders of magnitude higher (2.74 × 10−2 cm2V−1s−1) than that of PIDT-BBT (4.52 × 10−4 cm2V−1s−1). Both exhibited excellent thermoelectric performance after doping with 2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane, where PIDTT-BBT exhibited a larger conductivity (0.181 S cm−1) and a higher power factor (1.861 μW m−1 K−2) due to its higher carrier mobility. The maximum power factor of PIDTT-BBT reached 4.04 μW m−1 K−2 at 382 K. It is believed that conjugated polymers with a low bandgap are promising in the field of organic thermoelectric materials.

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