Peroxidase-mediated synthesis of water-soluble fully sulfonated polyaniline

Roman, Paulina; Cruz-Silva, Rodolfo; Vázquez-Duhalt, Rafael

doi:10.1016/j.synthmet.2012.02.019

Cited by 22 publications

(11 citation statements)

References 38 publications

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“…Since the 1980s, various azoarylamines, arylaminoalcohols, arylaminoketones, aminobenzoic acids, and aminobenzenesulfonic acids have successfully been enzymatically polymerized (Table 7 ). The enzymatic polymerization of aminobenzoic acids and aminobenzenesulfonic acids has led to self-doped carboxylated and sulfonated PANIs containing acid moieties in the polymer backbone (Alva et al 1996 , 1997 ; Kim et al 2006a , b , 2007b ; Román et al 2012 ). Polyanionic templates were found to be unsuitable for the enzymatic polymerization of acid-functionalized aniline derivatives (Kim et al 2006a ).…”

Section: Enzymatic Polymerization Of Substituted Anilines and Other Amentioning

confidence: 99%

Enzymatic oligomerization and polymerization of arylamines: state of the art and perspectives

et al. 2016

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The literature concerning the oxidative oligomerization and polymerization of various arylamines, e.g., aniline, substituted anilines, aminonaphthalene and its derivatives, catalyzed by oxidoreductases, such as laccases and peroxidases, in aqueous, organic, and mixed aqueous organic monophasic or biphasic media, is reviewed. An overview of template-free as well as template-assisted enzymatic syntheses of oligomers and polymers of arylamines is given. Special attention is paid to mechanistic aspects of these biocatalytic processes. Because of the nontoxicity of oxidoreductases and their high catalytic efficiency, as well as high selectivity of enzymatic oligomerizations/polymerizations under mild conditions—using mainly water as a solvent and often resulting in minimal byproduct formation—enzymatic oligomerizations and polymerizations of arylamines are environmentally friendly and significantly contribute to a “green” chemistry of conducting and redox-active oligomers and polymers. Current and potential future applications of enzymatic polymerization processes and enzymatically synthesized oligo/polyarylamines are discussed.

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Section: Enzymatic Polymerization Of Substituted Anilines and Other Amentioning

confidence: 99%

Enzymatic oligomerization and polymerization of arylamines: state of the art and perspectives

et al. 2016

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“…Interestingly, deposition of Ag NPs on the hd‐MSN‐NH 2 nanoparticles showed the decrease in the binding energy values of 3d doublet as compared to their standard values in bulk silver (368.2 eV and 375.2 eV) . The high resolution spectrum of N 1s of hd‐MSN‐NH 2 showed two peaks at 395 eV and 398.4 eV corresponding to N−H and N−C bonding respectively …”

Section: Resultsmentioning

confidence: 97%

Reductant‐Free Synthesis of Silver Nanoparticles by Functionalized Hollow Doughnut Mesoporous Silica Nanoparticles for Preparation of Catalytic Nanoreactor

Patra

Kim

2018

ChemistrySelect

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This work reports a detailed investigation about functionalization of hollow doughnut mesoporous silica nanoparticles (hd-MSN) by N 1 -(3-Trimethoxysilylpropyl) diethylenetriamine (DAEAPTS). Interestingly, here we experimentally show that the tri-amino functional groups on hd-MSN (hd-MSN-NH 2 ) act as capping agent as well as reducing agent for silver ions (Ag + ) and the reduction reaction process can significantly influence the structure of the silver nanocrystals. Thus, we have deposited uniform 4.2 nm silver nanocrystals on the hd-MSN-NH 2 nanoparticles without any reducing agents. The size and the crystalline structure of Silver nanoparticles (Ag NPs) and silica nanoparticles were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM) and wide-angle X-ray diffraction, respectively. The mechanism of reduction of Ag + was clearly studied by FT-IR, FT-Raman, XRD and XPS studies. Ag/hd-MSN-NH 2 with special shape (hollow doughnut shape) could incorporate Ag NPs both inside and outside of hd-MSN. Here Ag/hd-MSN-NH 2 worked as nanoreactor. In our condition for catalytic reduction of 4-nitrophenol, the reaction rate reached 4.1 x10 À3 s À1 which is higher than many previous results. The Ag/hd-MSN-NH 2 nanocatalyst shows excellent reusability and high efficiency even after 10 cycles.[a] N.

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“…For example, it was found in a number of studies that substituted aniline containing a sulfo and alkoxysulfo group did not undergo electropolymerization. 35,[75][76][77] In order to prevent the overoxidation of the polymer lm, the anodic limit of the polymerization potential during the electrosynthesis of functionalized high molecular mass anilines is maintained at low values. At the initial stages of the process, the PANI lm grows slowly, but aer about 20 cycles this process accelerates signicantly and approaches completion aer 50 cycles at a scan rate of 10-100 mV s À1 , which indicates its low electrical conductivity.…”

Section: Electrochemical Synthesismentioning

confidence: 99%

“…The yield of the target product in the synthesis described above is no higher than 50%. 37,47,[74][75][76][77][78][79][80][81][82] Despite the simplicity of the experiment, it appears that the low popularity of this method for synthesizing high molecular mass compounds is explained by the low product yields.…”

Section: Interface Polymerizationmentioning

confidence: 99%

“…The solubility of such PANI derivatives both in water and in organic media increases with an increase in the number of acid groups in the macromolecule's side chain, whereas the presence of anionic groups benecially affects the solubility in bases. [75][76][77][89][90][91][92][93][94] One of the reasons for the solubility improvement is assumed 47,48 to lie in the formation of an oligomeric product due to the presence of a substituent that causes a kinetic effect and a decrease in the chain growth rate.…”

Section: Solubilitymentioning

confidence: 99%

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Effect of structural factors on the physicochemical properties of functionalized polyanilines

2020

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Peroxidase-mediated synthesis of water-soluble fully sulfonated polyaniline

Cited by 22 publications

References 38 publications

Enzymatic oligomerization and polymerization of arylamines: state of the art and perspectives

Enzymatic oligomerization and polymerization of arylamines: state of the art and perspectives

Reductant‐Free Synthesis of Silver Nanoparticles by Functionalized Hollow Doughnut Mesoporous Silica Nanoparticles for Preparation of Catalytic Nanoreactor

Effect of structural factors on the physicochemical properties of functionalized polyanilines

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