Synthesis of resin IV: Salicylic acid, diaminonaphthalein, and formaldehyde terpolymer and its ion exchange

Masram, Dhanraj T.; Bhave, N. S.; Kariya, Kiran P.

doi:10.1002/app.31110

Cited by 13 publications

(15 citation statements)

References 71 publications

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“…The electrical conductance of polymeric material depends upon incalculable parameters such as porosity, pressure, method of preparation and atmosphere. Generally polymers containing aromatic nuclei and conjugated unsaturation centres in the back bone exhibit lower activation energy than those with aliphatic system 21,26,27. The powdered sample of resin SAMF-I was palatalized by hydraulic press at pressure of 17lb inch -2 .…”

Section: Electrical Conductivity Of Samf-i Resinsmentioning

confidence: 99%

“…Rahangdale et al 7 carried out the study of terpolymeric resin and found that the electrical conductivity of each of the copolymer resins increases with increase in temperature. Electrical conductivity study has been done of resin synthesized from salicylic acid, butylenediamine and formaldehyde 8 . Dharkar et al 9 studied the conductivities of melamine-aniline-formaldehyde terpolymer resins and its polychelates.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Synthesis and Semiconducting Behavior of Terpolymer Resin-I Derived from Sulphanilic Acid, Melamine and Formaldehyde

Ingle¹,

Hiwase²,

Kalambe³

2012

Chem Sci Trans

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Abstract:The resin-I (abbreviated as SAMF-I) was synthesized by polycondensation reaction of sulphanilic acid (0.05 M), melamine (0.05 M) and formaldehyde (0.15 M) in presence of an acid catalyst (1 M HCl). The structure of resin was determined by its elemental analysis, UV-Vis, IR data. Molecular weight of resin was determined by non aqueous conductometric titration. DC conductivity of the terpolymer was studied over a wide range of temperature. The resin was found to show semiconducting behavior since Wilson's law was obeyed. The conductivity of SAMF-I was found to be in the range 3.8x10 -8 to 2.9x10 -8 mho cm -1 for temperature range 303-423 K. The activation energy of conduction for SAMF-I was found to be 0.981 kJmol -1 .

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Section: Electrical Conductivity Of Samf-i Resinsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Synthesis and Semiconducting Behavior of Terpolymer Resin-I Derived from Sulphanilic Acid, Melamine and Formaldehyde

Ingle¹,

Hiwase²,

Kalambe³

2012

Chem Sci Trans

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“…Although there are different methods reported in the literature for evaluation and characterization of ion exchange resins [8][9][10][11], but the isotopic tracers technique as one of the non destructive radio analytical technique offer several advantages such as high detection sensitivity, capability of in-situ detection, limited memory effects and physico-chemical compatibility with the material under study [12,13].…”

Section: Introductionmentioning

confidence: 99%

Radio Analytical Nondestructive Technique in Performance Evaluation of Organic Base Ion Exchange Resins Purolite NRW-6000 and Duolite A-378

Singare¹

2013

ILCPA

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Nondestructive radioanalytical technique using short lived isotopes 131 I and 82 Br was used as tracers to study the kinetics of iodide and bromide ion-isotopic exchange reactions. The kinetic data so obtained was used to evaluate the performance of organic base anion exchange resins Purolite NRW-6000 and Duolite A-378. It was observed that for iodide ion-isotopic exchange reaction performed at 40.0 °C using 1.000 g of ion exchange resins and 0.003 mol/L labeled iodide ion solution, the values of specific reaction rate (min -1 ), amount of iodide ion exchanged (mmol), initial rate of iodide ion exchange (mmol/min) and log K d were calculated as 0.332, 0.582, 0.193 and 16.2 respectively for Purolite NRW-6000 resin, which was higher than the respective values of 0.210, 0.421, 0.088 and 14.7 as that obtained for Duolite A-378 resins. Also at a constant temperature of 40.0 °C, as the concentration of labeled iodide ion solution increases from 0.001 mol/L to 0.004 mol/L, the percentage of iodide ions exchanged increases from 74.68 % to 79.48 % using Purolite NRW-6000 resins and from 52.30 % to 58.90 % using Duolite A-378 resins. The overall results indicate superior performance of Purolite NRW-6000 resins over Duolite A-378 resins under identical operational parameters. It is expected here that the present technique can be extended further for characterization of different ion exchange resins which will further help in the selection of those reins for the specific industrial application.

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“…In spite of their advanced stage of development, various aspects of ion exchange technologies have been continuously studied to improve the efficiency and economy of their application in radioactive waste management. Efforts to develop new organic ion exchangers for specific applications are continuing [2][3][4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

“…Therefore development of new organic ion exchange materials for specific industrial and technological applications is a biggest challenge to present day researchers. Development of ion exchange resins is usually followed by characterization to understand the performance of those resins in various technological applications [5][6][7][8][9][10][11]. Although number of techniques are available for the characterization of ion exchange resins [12][13][14], but the radiotracer technique offer several advantages such as high detection sensitivity, capability of in-situ detection, limited memory effects and physico-chemical compatibility with the material under study [15,16].…”

Section: Introductionmentioning

confidence: 99%

Nondestructive Radioactive Tracer Technique in Characterization of Anion Exchange Resins Purolite NRW-8000 and Duolite A-368

Singare¹

2013

ILCPA

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Radioactive tracer isotopes I and 82Br were used to characterize anion exchange resins Purolite NRW-8000 and Duolite A-368 by application of nondestructive technique. The resin characterization was based on their performance during iodide and bromide ion-isotopic exchange reactions. It was observed that during the iodide ion-isotopic exchange reaction at a constant temperature of 40.0 °C, as the concentration of labeled iodide ion solution increases from 0.001 mol/L to 0.004 mol/L, the percentage of iodide ions exchanged increases from 62.10 % to 68.10 % using Purolite NRW-8000 resins and from 44.20 % to 46.80 % using Duolite A-368 resins. Also at a constant temperature of 40.0 °C, 1.000 g of ion exchange resins and 0.003 mol/L labeled iodide ion solution, the values of specific reaction rate (min -1 ), amount of iodide ion exchanged (mmol), initial rate of iodide ion exchange (mmol/min) and log K d were calculated as 0.260, 0.500, 0.130 and 11.8 respectively for Purolite NRW-8000 resin, which was higher than the respective values of 0.130, 0.345, 0.045 and 6.7 as that obtained for Duolite A-368 resins. The similar trend was observed for the two resins during bromide ion-isotopic exchange reaction. From the overall results it appears that under identical experimental conditions, Purolite NRW-8000 resins show superior performance over Duolite A-368 resins. It is expected here that the present nondestructive technique can be extended further for characterization of different industrial grade ion exchange resins, which will help in their selection for specific industrial application.

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Synthesis of resin IV: Salicylic acid, diaminonaphthalein, and formaldehyde terpolymer and its ion exchange

Cited by 13 publications

References 71 publications

Synthesis and Semiconducting Behavior of Terpolymer Resin-I Derived from Sulphanilic Acid, Melamine and Formaldehyde

Synthesis and Semiconducting Behavior of Terpolymer Resin-I Derived from Sulphanilic Acid, Melamine and Formaldehyde

Radio Analytical Nondestructive Technique in Performance Evaluation of Organic Base Ion Exchange Resins Purolite NRW-6000 and Duolite A-378

Nondestructive Radioactive Tracer Technique in Characterization of Anion Exchange Resins Purolite NRW-8000 and Duolite A-368

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