Synthesis of porphyrin-incorporated polymers and their application for simultaneous detection of multimetal components by using spectrophotometry

Asano, Takaharu; Wang, Pichao; Iwasaki, Akio

doi:10.1016/j.saa.2009.10.028

Cited by 12 publications

(4 citation statements)

References 30 publications

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“…levels in our study (Figure 4). Asano demonstrated that porphyrin in the porphyrin–Fe III complex was difficult to exchange to porphyrin–Al 3+ by the coordination with Al 3+ [24,25]. In the HPX-XOD system, therefore, it is hard accepted that less O 2 − .…”

Section: Resultsmentioning

confidence: 99%

Superoxide Scavenging Effects of Some Novel Bis-Ligands and Their Solvated Metal Complexes Prepared by the Reaction of Ligands with Aluminum, Copper and Lanthanum Ions

Kobayashi¹,

Kanai²

2013

Molecules

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Novel antioxidants have been synthesized and characterized by their chemical properties as antioxidants with high superoxide scavenging activity. (2R,3R)-diphenylethylenediamine is a spacer in antioxidants, and we synthesized targets 11a and 11b by conjugation with o-hydroquinone and p-hydroquinone at the two N-termini, respectively. Superoxide scavenging activities of the plant flavonoid-like 11a and 11b were compared with those of known antioxidants, and shown to increase in the following order: curcumin << ascorbic acid < Trolox < (+)-epicatechin < 11a < quercetin ≤ 11b. Compound 11a also formed a solvated 11a-metal complex with metal ions. The 11a-Cu . These results suggest that 11a and 11b are powerful antioxidants.

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Section: Resultsmentioning

confidence: 99%

Superoxide Scavenging Effects of Some Novel Bis-Ligands and Their Solvated Metal Complexes Prepared by the Reaction of Ligands with Aluminum, Copper and Lanthanum Ions

Kobayashi¹,

Kanai²

2013

Molecules

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“…Ion Cr2O7 (53) dapat direduksi menjadi ion Cr +3 (berwarna hijau). Jumlah ion Cr2O7 yang berubah menjadi Cr +3 digunakan untuk menentukan jumlah dari zat pereduksis (54)(55)(56)(57).…”

Section: Introductionunclassified

Kalium Dikromat (K2Cr2O7) Spektroskopi dan Transpor K2Cr2O7

Sari¹,

Zainul²

2018

Preprint

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Kalium dikromat (K2Cr2O7) adalah padatan ion kristalin dengan warna merah-orange yang digunakan sebagai oksidator di berbagai bidang.Tujuan dari penulisan paper ini untuk mengetahui karakteristik serta panjang gelombang maksimum dari kalium dikromat. Metode yang digunakan penggambaran dengan ChemOffice 15.0 dengan hasil komputasi energi total sebesar 502.7538 kcal/mol,peregangan 2.5601,torsi 92.0154, dan Stretch-Bend -0.5046. Sedangkan data mengenai panjang maksimum gelombang didapatkan dari review beberapa jurnal. Analisis yang dilakukan dapat diketahui dari fishbon. Sifat-sifat termokimia dari kalium dikromate ∆S0 291.2 J K-1 mol -1, ∆fH0 -2033 kJ/mol. Kadar kalium dikromate dianalisis dengan menggunakan alat Spektrofotometer UV-Vis Shimadzu 1700 PC. Penentuan panjang gelombag maksium dapat dilakukan dengan menggunakan larutan K2Cr2O7. Konsentrasi kalium dikromate dapat dihitung dari data kurva standar di peroleh panjang gelombang maksimum 429,6 nm dengan persamaan garis y = 70.25x + 0.005. viskositas kalium dikromat mengalami penurunan seiring dengan kenaikan suhu, pada suhu 250C 5.648,17, suhu 300C 4.960,94, dan suhu 350C 3.790,5. Parameter transpor ion pada kalium dikromat meliputi konduktivitas termal, gerakan ion (kecepatan hanyut, mobilitas ion, bilangan transpor).

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“…In recent years, porphyrin and metalloporphyrin unit‐containing polymeric materials, linear‐type or crosslinked polymer materials, have attracted much attention, and have been used in many fields, such as the construction of artificial oxygen carrier membranes, the preparation of nonlinear optic materials, the chemical conversion of solar energy by photocatalytic reactions, the construction of various sensors, the development of new catalytic systems, the detection of metal components, the preparation of functional LB films, the development of ion‐selective membrane electrodes, the synthesis of functional conducting polymers,6–14 and otherwise. Therefore, in material science as well as in the functional polymer area, it will be a significant study topic to realize porphyrin‐functionization of polymers including linear type polymers or crosslinked polymeric microspheres by designing novel, effective and short cut chemical routes.…”

Section: Introductionmentioning

confidence: 99%

Realizing porphyrin‐functionalization of crosslinked polystyrene microspheres via two special polymer reactions

Gao

Yingjun

Lei

2011

Polymers for Advanced Techs

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A novel route to make crosslinked polystyrene (CPS) microspheres to be porphyrin-functionalized via two special polymer reactions, Kornblum reaction and Adler reaction, was designed and founded. The chloromethyl groups of chloromethylated crosslinked polystyrene (CMCPS) microspheres were first oxidized to aldehyde groups by dimethyl sulfoxide as oxidant via Kornblum oxidation reaction, obtaining aldehyde group-modified microspheres, ALCPS microspheres, in which, a great quantity of benzaldehyde groups suspend from the main chain, and the effects of the main factors including the reaction temperature, the addition of KI as catalyst and the used amount of NaHCO 3 as acid acceptor on the oxidation reaction were examined. Subsequently, the synchronic synthesizing and immobilizing of porphyrins on CPS microspheres were carried out via the Adler reaction between solid and liquid phases, in which, ALCPS microspheres, pyrrole and benzaldehyde or benzaldehyde analog in a solution were used as co-reactants, resulting in porphyrin-functionalized microspheres, and the influence of diverse factors including the acidity of the protonic acid catalyst, the substituent structure of benzaldehyde analog, and the polarity of the solvent as well as the swelling property of the solvent for CPS microspheres on the process of synchronously synthesizing and immobilizing porphyrins on CPS microspheres were investigated in depth. The experimental results indicate that via the designed route, the porphyrin-functionalization of CPS microspheres can successfully be realized. For the Kornblum oxidation reaction, under the optimal reaction conditions, the conversion of chloromethyl groups can reach 90%. For the Adler reaction between solid and liquid phases, the fitting protonic acid catalyst is lactic acid, appropriate solvent is a mixture of dimethyl sulfoxide and xylene, and using 4-chlorobenzaldehyde as a benzaldehyde analog reactant in the solution is in favor of the porphyrin-functionalization of CPS microspheres. Under these specific conditions, the immobilized amount of porphyrin can get up to 23.33 mmol/100 g.

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Synthesis of porphyrin-incorporated polymers and their application for simultaneous detection of multimetal components by using spectrophotometry

Cited by 12 publications

References 30 publications

Superoxide Scavenging Effects of Some Novel Bis-Ligands and Their Solvated Metal Complexes Prepared by the Reaction of Ligands with Aluminum, Copper and Lanthanum Ions

Superoxide Scavenging Effects of Some Novel Bis-Ligands and Their Solvated Metal Complexes Prepared by the Reaction of Ligands with Aluminum, Copper and Lanthanum Ions

Kalium Dikromat (K2Cr2O7) Spektroskopi dan Transpor K2Cr2O7

Realizing porphyrin‐functionalization of crosslinked polystyrene microspheres via two special polymer reactions

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