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Water soluble kraft lignin-acrylic acid copolymer: synthesis and characterization

01-Jul-2015 | Fangong Kong; Shoujuan Wang; Jacquelyn T Price; Mohan Konduri; pedram Fatehi, Green Chemistry, 2015

Lignin produced in the kraft pulping process is insoluble in water at neutral pH, which limits its application in industry. In this paper, kraft lignin (KL) was copolymerized with acrylic acid (AA) in an aqueous solution to produce a water soluble lignin-based copolymer. The copolymerization was ...

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Hopping intermittent contact-scanning electrochemical microscopy (HIC-SECM) as a new local dissolution kinetic probe: application to salicylic acid dissolution in aqueous solution

01-Jul-2015 | Amelia R Perry; Robert Alexander Lazenby; Maria Adobes-Vidal; Massimo Peruffo; Kim McKelvey; Michael E Snowden; P R ..., CrystEngComm, 2015

Dissolution kinetics of the (110) face of salicylic acid in aqueous solution is determined by hopping intermittent contact-scanning electrochemical microscopy (HIC-SECM) using a 2.5 µm diameter platinum ultramicroelectrode (UME). The method operates by translating the probe UME towards the ...

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Hydrothermal synthesis, evolution, and electrochemical performance of LiMn0.5Fe0.5PO4 nanostructures

01-Jul-2015 | Wei Xiang; Yan-Jun Zhong; Jun-Yi Ji; Yan Tang; HuiHui Shen; Xiao-Dong Guo; Ben-He Zhong; Shi Xue Dou; Zhi-Ye Zhang, Physical Chemistry Chemical Physics, 2015

LiMn0.5Fe0.5PO4 (LMFP) materials are synthesized by the hydrothermal approach in an organic-free and surfactant-free aqueous solution. The phase and morphological evolution of the material intermediates at different reaction temperatures and times are characterized by XRD, SEM and TEM, ...

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Excess Electron Interaction with Radiosensitive 5-Bromopyrimidine in Aqueous Solution: A Combined Ab Initio Molecular Dynamics and Time-Dependent Wave-Pocket Study

01-Jul-2015 | Changzhe Zhang; Yuxiang Bu, Physical Chemistry Chemical Physics, 2015

Radiation-generated secondary electrons can induce resonance processes of a target molecule and fragment it via different pathways. Although the associating electronic resonant states at equilibrium geometry have been well studied for many target molecules in the gas phase, the vibrational ...

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Ion-precursor and ion-dose dependent anti-galvanic reduction

01-Jul-2015 | Shubo Tian; Chuanhao Yao; Lingwen Liao; Nan Xia; Zhikun Wu, Chemical Communication, 2015

Controlling alloy nanoparticles with atomic monodispersity is challenging, and the recently revealed anti-galvanic reduction (AGR) provides a unique solution to this challenge. Herein we demonstrate that AGR is ion-precursor and ion-dose dependent, which offers novel strategies to tune the ...

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Reversible switching of amphiphilic self-assemblies between micelles and microemulsions by a thermal stimulus

01-Jul-2015 | Bin Dong; Xueqing Xing; Rui Wang; Bing Wang; Xiaoyan Zhou; Chang Wang; Li Yu; Zhonghua Wu; Yanan Gao, Chemical Communication, 2015

The ionic liquid (IL), tetrabutylphosphonium trifluoroacetate ([P4444][CF3COO]), showed a low critical solution temperature (LCST)-type phase transition in water. Using this temperature-sensitive IL and the Triton X-100/H2O system, the reversible transformation between micelles and microemulsions ...

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Utilizing alkoxyphenyl substituents for side-chain engineering of efficient benzo[1,2-b:4,5-b[prime or minute]]dithiophene-based small molecule organic solar cells

01-Jul-2015 | Zhengkun Du; Weichao Chen; Meng Qiu; Yanhua Chen; Ning Wang; Ting Wang; Mingliang Sun; Donghong Yu; Renqiang Yang, Physical Chemistry Chemical Physics, 2015

A new two-dimensional (2D) conjugated small molecule, namely DCA3TBDTP, with an alkoxyphenyl substituted benzo[1,2-b:4,5-b′]dithiophene (BDT) unit as the central core, octyl cyanoacetate as the end-capped groups and terthiophene as the π-linked bridge, was designed and synthesized for ...

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Abnormal Crystal Growth in CH3NH3PbI3-xClx Using a Multi-cycle Solution Coating Process

01-Jul-2015 | Qingfeng Dong; Yongbo Yuan; Yuchuan Shao; Yanjun Fang; Qi Wang; Jinsong Huang, Energy & Environmental Science, 2015

The efficiency of organolead trihalide perovskite solar cells has rocketed recently due to the improved material qualities with longer carrier diffusion lengths. Mixing chlorine in the precursor for mixed halide films was reported to dramatically enhance the diffusion lengths of mixed halide ...

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[Cp*RhCl2]2: Mechanosynthesis and applications in C–H bond functionalisations under ball-milling conditions

01-Jul-2015 | Jose G. Hernández; Carsten Bolm, Chemical Communication, 2015

A mechanochemical synthesis of [Cp*RhCl2]2 has been developed. Under LAG conditions the organometallic complex can be prepared in a shorter reaction time compared to the standard solution-based protocol. The obtained Rh(III) dimer is then applicable as catalyst in subsequent solvent-free ...

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Probing the common alkali metals affinity of native and variously methylated [small beta]-cyclodextrins by combining electrospray-tandem mass spectrometry and molecular modeling

01-Jul-2015 | Cédric Przybylski; Véronique Bonnet; Christine Cezard, Physical Chemistry Chemical Physics, 2015

In the study herein, we investigated the solution and gas phase affinity of native and variously methylated β-cyclodextrins (CDs) as hosts towards three common alkali metals as guests namely lithium, sodium and potassium. For this purpose, two complementary approaches have been employed: ...

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