نتایج جستجو برای: Methylpyrrolidone

تعداد نتایج: 71  

2003

N-methylpyrrolidone is listed under Proposition 65 (the Safe Drinking Water and Toxic Enforcement Act of 1986) as known to the state to cause reproductive toxicity (developmental toxicity), effective June 15, 2001. The Proposition 65 listing of N­ methylpyrrolidone was based on the formal identification by the U.S. Environmental Protection Agency (U.S. EPA 1994a, 1994b) of N-methylpyrrolidone a...

Journal: :Organic & biomolecular chemistry 2008
Song Cao Jingjing Wu Lina Li Longjie Zhu Jian Zhang Jinlong Yu Xuhong Qian

An efficient three component one-pot method was developed to assemble 2-heteroaryl-2-aryl acetates via VNS(Ar)-S(N)Ar and VNS(Ar)-S(N) reaction by using N-methylpyrrolidone (NMP) as general solvent.

Journal: :Energy advances 2022

Use of the green solvent PolarClean demonstrates a potential route replacing toxic organic N -methylpyrrolidone in composite cathode slurry fabrication for Li ion batteries.

Journal: :Nanotechnology 2009
Dong-Wook Shin Jong Hak Lee Yu-Hee Kim Seong Man Yu Seong-Yong Park Ji-Beom Yoo

There is some controversy regarding the effects of HNO3 on films of single-walled carbon nanotubes (SWCNTs). In this study we examined the change in sheet resistance of an HNO3-modified SWCNT film after different drying times at 85 degrees C using various analytical techniques. The shift and suppression in the Raman spectra, bleaching of the transition peaks related to van Hove singularities an...

Journal: :Carbohydrate research 2005
Lijun Wei Guohua Wei Houcheng Zhang Peng G Wang Yuguo Du

4'-Modified avermectin derivatives were designed and synthesized. Some of the new synthetic compounds showed excellent in vivo bioactivity against cabbage larvae when compared to commercially available avermectin B1a. In this synthesis, uncommon thioglycosyl sugar donors, prepared from the hydrolysis of natural antibiotics, proved compatible with sugar-macrolide synthesis in the presence of N-i...

Journal: :Chemical communications 2015
M Haniff Wahid Xianjue Chen Christopher T Gibson Colin L Raston

A simple and scalable method has been developed for directly forming water-dispersible van der Waals solids involving mixing aqueous solution of graphene oxide (GO) with hexagonal boron nitride (BN) or molybdenum disulphide (MoS2) in N-methylpyrrolidone. The GO acts as an amphiphile in stabilising the colloidal solutions of the heterolaminar material in water.

Journal: :ACS nano 2012
Felice Torrisi Tawfique Hasan Weiping Wu Zhipei Sun Antonio Lombardo Tero S Kulmala Gen-Wen Hsieh Sungjune Jung Francesco Bonaccorso Philip J Paul Daping Chu Andrea C Ferrari

We demonstrate inkjet printing as a viable method for large-area fabrication of graphene devices. We produce a graphene-based ink by liquid phase exfoliation of graphite in N-methylpyrrolidone. We use it to print thin-film transistors, with mobilities up to ∼95 cm(2) V(-1) s(-1), as well as transparent and conductive patterns, with ∼80% transmittance and ∼30 kΩ/□ sheet resistance. This paves th...

2011
D. P. Chu A. C. Ferrari

We demonstrate ink-jet printing as a viable method for large area fabrication of graphene devices. We produce a graphene-based ink by liquid phase exfoliation of graphite in N-Methylpyrrolidone. We use it to print thin-film transistors, with mobilities up to∼95cmVs, as well as transparent and conductive patterns, with∼80% transmittance and∼30kΩ/ sheet resistance. This paves the way to all-print...

Journal: : 2021

The processes of photoexcitation and energy transfer in an air-saturated solution fullerene C60 n-methylpyrrolidone are studied. With femtosecond laser pumping at a wavelength л(p) = 520 nm, transient absorption spectra were obtained the range 470-750 nm. Broadband is observed л > 650 nm as result aggregation molecules, characterized by short decay time picosecond scale. analysis dependencie...

2009
S. Radhakrishnan S. Prakash Chepuri R. K. Rao M. Vijayan

Soluble conducting polyaniline composites with low-level loadings of Fe3O4 have been synthesized and characterized. The composites are dispersible in many solvents including water and soluble in polar organic solvents, such as chloroform, N-methylpyrrolidone, and methanol. The conductivity of the sample increases with increase in Fe3O4 loading and typically is in the range of 0.042–0.42 S/cm. T...

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