Preparation of a thermosensitive cobalt phthalocyanine/N-isopropylacrylamide copolymer and its catalytic activity on thiol

Chen, Wenxing; Zhao, Baojun; Pan, Yong; Yao, Yingming; Lü, Shenshui; Chen, Shiliang; Du, Liangcheng

doi:10.1016/j.jcis.2006.04.008

Cited by 28 publications

(12 citation statements)

References 29 publications

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“…The peak at 1726 cm -1 and 3199 cm -1 disappeared, indicating reaction of the COOH with the NH group from the PAA. The UV spectrum of the cobalt phthalocyanine-C-monocarboxylic acid showed a Q band at 661 nm and a higher B band at 296 nm, while the spectrum of the polymer-attached ionophore (III) showed a weaker satellite band at 661 nm with a shift of the B band to 328 nm, which is in agreement with results of Chen et al [23].…”

Section: Synthesis Of Ionophoressupporting

confidence: 91%

Solid-Contact Perchlorate Sensor with Nanomolar Detection Limit Based on Cobalt Phthalocyanine Ionophores Covalently Attached to Polyacrylamide

Abbas¹,

Radwan²,

Bühlmann³

et al. 2011

AJAC

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Novel solid-contact perchlorate sensors based on cobalt phthalocyanine-C-monocarboxylic acid (I), and cobalt phthalocyanine-C,C,C,C-tetracarboxylic acid (II) as free ionophores and covalently attached to polyacrylamide (PAA)-ionophores III and IV, respectively were prepared. The all solid-state sensors were constructed by the application of a thin film of a polymer cocktail containing a phthalocyanine ionophore and cetyltrimethylammonium bromide (CTMAB) as a lipophilic cationic additive onto a gold electrode precoated with the conducting polymer poly (3,4-ethylenedioxythiophene) (PEDOT) as an ion and electron transducer. The sensor with 10.3% of ionophore (III) covalently attached to plasticizer-free poly (butyl methacrylate-co-dodecyl methacrylate) (PBDA) exhibited a good selectivity for perchlorate and discriminated many ions, in- -2 mol·L -1 with a lower detection limit (LDL) of 1 × 10 -9 mol·L -1 and gave a stable response over a pH range of 4 -10.5. The all-solid state sensors were utilized for the selective flow injection potentiometric determination of perchlorate in natural water and human urine samples in the nanomolar concentration range.

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Section: Synthesis Of Ionophoressupporting

confidence: 91%

Solid-Contact Perchlorate Sensor with Nanomolar Detection Limit Based on Cobalt Phthalocyanine Ionophores Covalently Attached to Polyacrylamide

Abbas¹,

Radwan²,

Bühlmann³

et al. 2011

AJAC

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“…The initial reaction rate, V 0 = Àd[HOCH 2 CH 2 SH]/dt, was taken from the slope of the tangent line of the concentration of HOCH 2 CH 2 SH consumption oxidized by oxygen versus time. The concentration of RSH oxidized by oxygen was calculated from the concentration of consumed oxygen in solution [23].…”

Section: Measurement Of Catalytic Activitymentioning

confidence: 99%

“…To obtain MtPc catalysts that have a low aggregation tendency and can be recycled, our group has explored a general approach to the synthesis of polymeric MtPc catalysts by introducing a polymerizable N-acrylic carbonyl group into the side chains of cobalt tetraaminophthalocyanine (Co-APc) and then copolymerizing with N-isopropylacrylamide (NIPA) [23]. This copolymer has a high level of catalytic activity in the homogeneous phase and could be recovered by simple heating and heterogeneous separation.…”

Section: Introductionmentioning

confidence: 99%

Thermosensitive copolymer with cobalt phthalocyanine and catalytic behavior based on adjustable LCST

Zhao²,

et al. 2010

Reactive and Functional Polymers

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“…However, the degradation rate clearly increased when the temperature was increased further to a peak value of 72% at 29°C, which was slightly below the LCST of ZnPor–PAM. This behavior was attributed to the alteration of the polymer chain to form a range of micellelike structures from random coils as the temperature approached the LCST . During this transition, the concentration of the active center ZnPor was higher.…”

Section: Resultsmentioning

confidence: 99%

Synthesis of end‐functionalized poly(N‐isopropyl acrylamide) with zinc porphyrin and its photocatalytic activity under visible light

Qiu

Han

et al. 2014

J of Applied Polymer Sci

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A series of well‐defined linear poly(N‐isopropyl acrylamide) with an asymmetrical zinc(II) porphyrin (ZnPor–PAM) end group was synthesized by atom transfer radical polymerization, wherein 5,10,15,20‐tetra(p‐bromopropanoyloxyethylphenyl) zinc porphyrin tripropionate was used as the initiator and CuBr/tris(2‐dimeoethyl)amine was used as the catalyst system. The structure of the ZnPor–PAM was characterized by Fourier transform infrared spectroscopy and 1H‐NMR. In addition, the polydispersity index (PDI) obtained by gel permeation chromatography indicated that the molecular weight distribution was narrow; thus, the polymerization was well controlled (1.05 < PDI < 1.21). Because of the incorporation of hydrophobic porphyrin, the lower critical solution temperature of ZnPor–PAM was lower than that of the N‐isopropyl acrylamide homopolymer. Most interestingly, the ZnPor–PAM possessed remarkable photocatalytic activity for the oxidative degradation of methylene blue in the presence of hydrogen peroxide under visible‐light radiation. Moreover, ZnPor–PAM could be reused through the uncomplicated procedure, which exploited the thermoresponsive properties of ZnPor–PAM without any significant loss in activity. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014, 131, 40523.

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Preparation of a thermosensitive cobalt phthalocyanine/N-isopropylacrylamide copolymer and its catalytic activity on thiol

Cited by 28 publications

References 29 publications

Solid-Contact Perchlorate Sensor with Nanomolar Detection Limit Based on Cobalt Phthalocyanine Ionophores Covalently Attached to Polyacrylamide

Solid-Contact Perchlorate Sensor with Nanomolar Detection Limit Based on Cobalt Phthalocyanine Ionophores Covalently Attached to Polyacrylamide

Thermosensitive copolymer with cobalt phthalocyanine and catalytic behavior based on adjustable LCST

Synthesis of end‐functionalized poly(N‐isopropyl acrylamide) with zinc porphyrin and its photocatalytic activity under visible light

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