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4,181 Newest Publications about the topic solution

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Self-healing polyacrylic acid hydrogels

18-09-2013 | Umit Gulyuz; Oguz Okay, Soft Matter, 2013

pH responsive physical gels were prepared by micellar copolymerization of acrylic acid with 2 mol % stearyl methacrylate in the solution of worm-like sodium dodecyl sulfate micelles. The physical gels are insoluble in water and exhibit time-dependent dynamic moduli, high Young’s modulus (6 – 53 ...

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Calcium-selective optodes for the management of plant nutrient solutions

16-09-2013 | Author(s): Matthew T. Bamsey , Alain Berinstain , Michael A. Dixon, Sensors and Actuators B: Chemical, 2013

Publication date: January 2014 Source:Sensors and Actuators B: Chemical, Volume 190 Author(s): Matthew T. Bamsey , Alain Berinstain , Michael A. Dixon Robust, real-time, ion-selective sensors are much needed by the greenhouse and controlled environment plant production sectors. ...

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Novel uv spectrophotometer methods for quantitative estimation of metronidazole and furazolidone using mixed hydrotropy solubalization

16-09-2013 | Author(s): Ruchi Jain , Nilesh Jain , Deepak Kumar Jain , Vijay Kumar patel , Harish Rajak , Surendra Kumar Jain, Arabian Journal of Chemistry, 2013

Publication date: Available online 10 September 2013 Source:Arabian Journal of Chemistry Author(s): Ruchi Jain , Nilesh Jain , Deepak Kumar Jain , Vijay Kumar patel , Harish Rajak , Surendra Kumar Jain Two simple, accurate, novel, safe and precise methods were developed for the ...

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Composite films of N,O‐carboxymethyl chitosan and bamboo fiber

13-09-2013 | Xue Zheng, Hao Zhang, Ying She, Junwen Pu, Journal of Applied Polymer Science, 2013

ABSTRACT To obtain an antibacterial chitosan derivative, composite films of N,O‐Carboxymethyl Chitosan (N,O‐CMCS) and bamboo fiber were prepared. A water‐soluble chitosan derivative‐N,O‐CMCS was synthesized from chitosan with chloroacetic acid in alkaline solution. Composite films with 1–5 wt ...

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Montmorillonite‐reinforced sulfonated poly(phthalazinone ether sulfone ketone) nanocomposite proton exchange membranes for direct methanol fuel cells

13-09-2013 | Zhengwen Hu, Gaohong He, Shuang Gu, Yuanfa Liu, Xuemei Wu, Journal of Applied Polymer Science, 2013

ABSTRACT To produce a composite membrane with high conductivity and low permeability, SPPESK with a degree of sulfonation of 101% was carefully selected for the preparation of montmorillonite (MMT)‐reinforced SPPESK using solution intercalation. The fundamental characteristics such as water ...

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Free Energy Surface for Brønsted Acid-Catalyzed Glucose Ring-Opening in Aqueous Solution

13-09-2013 | Xianghong Qian, Journal of Physical Chemistry B, 2013

Car–Parrinello-based molecular dynamics coupled with metadynamics simulations were used to determine the mechanism and associated free energy surface for opening the ring structure of cyclic glucopyranose in acidic aqueous solutions. The ring-opening process is initiated by the protonation of the ...

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Cool Microcontact Printing To Fabricate Thermosensitive Microgel Patterns

13-09-2013 | Jiaxi Peng; Dan Zhao; Xiaofeng Tang; Fei Tong; Li Guan; Yapei Wang; Meining Zhang; Tingbing Cao, Langmuir, 2013

A facile method, cool microcontact printing (cool μCP), of fabricating microgel patterns under ambient conditions is developed. By using spontaneously condensed water on the surface of cold items and the phase transition of polymer microgels below the lower critical solution temperature (LCST), a ...

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Controllable Superlubricity of Glycerol Solution via Environment Humidity

13-09-2013 | Zhe Chen; Yuhong Liu; Shaohua Zhang; Jianbin Luo, Langmuir, 2013

The effect of humidity on the lubrication property of glycerol solution between steel surfaces has been investigated in this paper. A stable superlubricity with a friction coefficient about 0.006 has been found under the relative humidity between around 40% RH and 50% RH. Especially, it is noted ...

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Water-Soluble-Phosphines-Assisted Cobalt Separation in Cobalt-Catalyzed Hydroformylation

13-09-2013 | László T. Mika; László Orha; Eddie van Driessche; Ron Garton; Katalin Zih-Perényi; István T. Horváth, Organometallics, 2013

The hydroformylation of octene-1 and the removal of Co2(CO)8 and HCo(CO)4 from the reaction products including commercial C9 OXO-product were studied under biphasic conditions using an aqueous solution of different electron-donating sulfonated phosphine RnP(C6H4-m-SO3Na)2 (n = 0, 1, 2; R = Me, ...

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Mechanical and corrosion behaviors of 25Cr–5.3Ni–2.8Mo–0.15N duplex stainless steel castings affected by annealing process

12-09-2013 | J. Li, J. Guo, C.‐Y. Lu, P.‐G. Jia, S.‐H. Wu, Materials and Corrosion, 2013

Stress relief annealing treatment is generally applied to keep the dimension stability and tolerance during machining process for casting. However, this process might depress properties of duplex stainless steel (DSS) castings used for sea water circulating pumps in power plants. In this paper, ...

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