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50 Newest Publications about the topic solvent removal

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Polystyrene recycling processes by dissolution in ethyl acetate

18-Jan-2018 | Rafael Ferraz Cella, Guilherme Davi Mumbach, Karina Luzia Andrade, Patricia Oliveira, Cintia Marangoni, Ariovaldo Bo ..., Journal of Applied Polymer Science, 2018

ABSTRACT This study evaluated the thermal, morphological, chemical, and mechanical properties of virgin and recycled polystyrene. The recycling process was carried out by dissolution of polystyrene (extruded and crystal) in ethyl acetate, followed by two processes for solvent removal: ...

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Perovskite solar cells with CuSCN hole extraction layers yield stabilized efficiencies greater than 20%

10-Nov-2017 | Neha Arora; M. Ibrahim Dar; Alexander Hinderhofer; Norman Pellet; Frank Schreiber; Shaik Mohammed Zakeeruddin; Micha ..., Science , 2017

Perovskite solar cells (PSCs) with efficiencies greater than 20% have been realized only with expensive organic hole-transporting materials. We demonstrate PSCs that achieve stabilized efficiencies exceeding 20% with copper(I) thiocyanate (CuSCN) as the hole extraction layer. A fast solvent ...

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Perovskite solar cells with CuSCN hole extraction layers yield stabilized efficiencies greater than 20%

10-Nov-2017 | Neha Arora; M. Ibrahim Dar; Alexander Hinderhofer; Norman Pellet; Frank Schreiber; Shaik Mohammed Zakeeruddin; Micha ..., Science , 2017

Perovskite solar cells (PSCs) with efficiencies greater than 20% have been realized only with expensive organic hole-transporting materials. We demonstrate PSCs that achieve stabilized efficiencies exceeding 20% with copper(I) thiocyanate (CuSCN) as the hole extraction layer. A fast solvent ...

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Reversible and Topotactic Solvent Removal in a Magnetic Ni(NCS)2 Coordination Polymer

28-Jun-2017 | Stefan Suckert; Michał Rams; Marek M. Rams; Christian Näther, Inorganic Chemistry, 2017

Reaction of Ni(NCS)2 with 4-(Boc-amino)pyridine in acetonitrile leads to the formation of a new coordination polymer with the composition Ni(NCS)2(4-(Boc-amino)pyridine)2·MeCN (1-MeCN). In the crystal structure the Ni(II) cations are linked by the anionic ligands into chains that are further ...

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Solvent degradation studies using hydrodynamic cavitation

16-Jun-2017 | Pravin G. Suryawanshi, Vinay M. Bhandari, Laxmi Gayatri Sorokhaibam, Jayesh P. Ruparelia, Vivek V. Ranade, Environmental Progress, 2017

Hydrodynamic cavitation for the degradation of organic solvents was investigated in detail using a newer form of cavitating device‐vortex diode. The results were also compared with that using conventional cavitating device orifice. Removal of three different organic solvents—acetone, methyl ...

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Anisotropic and Interconnected Nanoporous Materials from Randomly End-Linked Copolymer Networks

06-Jun-2017 | Di Zeng; Alexander Ribbe; Ryan C. Hayward, Macromolecules, 2017

Microphase separation within randomly end-linked copolymer networks (RECNs) provides access to disordered bicontinuous morphologies over a wide composition range of the constituent network strands. Here, we rely on end-linking of telechelic hydroxyl-terminated polystyrene (PS) and ...

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Uniform Drug Loading into Prefabricated Microparticles by Freeze‐Drying

30-Mar-2017 | Seo Woo Song, Hyung Jong Bae, Sudeok Kim, Dong Yoon Oh, Okju Kim, Yunjin Jeong, Sunghoon Kwon, Particle & Particle Systems Characterization, 2017

Microparticle‐based drug delivery is a promising technology for small volume bioassay platforms. The general utilization of the drug‐loaded microparticles in the in vitro bioassay platforms requires the drug loading method, which should impregnate the general drug types (e.g., water insoluble) ...

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Optimum conventional extraction conditions for phenolics, flavonoids, and antioxidant capacity of Helicteres hirsuta Lour.

20-Feb-2017 | Hong Ngoc Thuy Pham, Quan Van Vuong, Michael C. Bowyer, Christopher J. Scarlett, Asia-Pacific Journal of Chemical Engineering, 2017

Abstract Helicteres hirsuta Lour. (H.hirsuta L.) has been used as a traditional medicine for treatment of various ailments such as malaria and diabetes in Southeast Asian countries. This study aimed to optimize the conventional extraction conditions for obtaining the highest levels of ...

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Variation of Desolvation Behaviour in Two Isostructural Metal–Organic Frameworks Based on a Flexible, Racemic Bifunctional Organic Linker

06-Aug-2016 | Andrey A. Bezrukov, Karl W. Törnroos, Pascal D. C. Dietzel, European Journal of Inorganic Chemistry, 2016

A racemic mixture of the chiral ligand 4,4′‐(1,2‐dihydroxyethane‐1,2‐diyl)dibenzoic acid was used to prepare two isostructural metal–organic frameworks, CPO‐49‐Zn and CPO‐49‐Mn, which contain coordinated solvent molecules at the metal site. The compounds showed different behavior upon ...

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Materials, Vol. 9, Pages 585: Solvent-Induced Polymorphism of Iron(II) Spin Crossover Complexes

19-Jul-2016 | Šalitroš, Ivan ; Fuhr, Olaf ; Ruben, Mario, Materials, 2016

Two new mononuclear iron(II) compounds (1) and (2) of the general formula [Fe(L)2](BF4)2·nCH3CN (L = 4-(2-bromoethyn-1-yl)-2,6-bis(pyrazol-1-yl)pyridine, n = 1 for (1) and n = 2 for compound (2)), were synthesized. The room temperature crystallization afforded concomitant formation of two ...

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