Immobilization of an organophosphorus compound on polypropylene ‐g‐ poly(glycidyl methacrylate) polymer support and its application in scandium recovery

2021 ◽  
pp. 51597
Author(s):  
Jordan F. Madrid ◽  
Bin Jeremiah D. Barba ◽  
Janronel C. Pomicpic ◽  
Patrick Jay E. Cabalar
RSC Advances ◽  
2015 ◽  
Vol 5 (61) ◽  
pp. 49036-49044 ◽  
Author(s):  
Agnieszka Bukowska ◽  
Wiktor Bukowski ◽  
Karol Bester ◽  
Sylwia Flaga

Poly(amidoamine) PAMAM type hyperbranched systems were immobilized on an epoxy functionalized polymer based on glycidyl methacrylate (the GMA resin).


1981 ◽  
Vol 46 (8) ◽  
pp. 1941-1946 ◽  
Author(s):  
Karel Setínek

A series of differently crosslinked macroporous 2,3-epoxypropyl methacrylate-ethylenedimethacrylate copolymers with chemically bonded propylsulphonic acid groups were used as catalysts for the kinetic study of reesterification of ethyl acetate by n-propanol in the liquid phase at 52 °C and in the gas phase at 90 °C. Analysis of kinetic data by the method of nonlinear regression for a series of equations of the Langmuir-Hinshelwood type showed that kinetic equations which describe best the course of the reaction are the same as for the earlier studied sulphonated macroporous styrene-divinylbenzene copolymers. Compared types of catalysts differ, however, in the dependence of their activity on the degree of crosslinking of the copolymer used.


1983 ◽  
Vol 48 (7) ◽  
pp. 2021-2027 ◽  
Author(s):  
Eliška Kálalová ◽  
Olga Populová ◽  
Štěpánka Štokrová ◽  
Pavel Stopka

Copper(II) and nickel(II) ions were bonded in complexes of salicylideneimine type on a glycidyl methacrylate-ethylenedimethacrylate copolymer. The geometry of the complexes on the polymer was studied by measuring their magnetic properties, EPR spectra, and ultraviolet-visible spectra.Only paramagnetic complexes possessing a pseudo-tetrahedral configuration were found. The effect of the polymer matrix and of the immobility of the bonded Schiff base on the distortion of the coordination sphere of the central ion is discussed.


KYAMC Journal ◽  
2018 ◽  
Vol 9 (3) ◽  
pp. 133-135
Author(s):  
Joya Debnath ◽  
Arpan Kumar Basak ◽  
Md Zubaidur Rahman ◽  
Anujit Saha

Background : Self poisoning with organophosphate pesticides is a major health problem in world wide. Organophosphorus compound poisoning is a very common toxicological emergency encountered at Mirzapur in Tangail. It is particularly common among the rural agricultural worker's which comprise a substantial group of the population of this region.Objective: The objective of this study was to find out the incidence, frequency, pattern of poisoning, outcome and aetiological aspect of Organo phosphorus poisoning patient admitted in Kumudini Women's Medical college Hospital.Methods: A total 366 cases of OPC poisoning were analysed during 1 year from January 2015 to December 2015. The emphasis was given on age, sex, socio-economic status, occupation, motive of poisoning, types of compound consumed its quality, place, distance from referral place and the ultimate outcome.Results: Young population of rural background, particularly agricultural workers were the commonest patients (51.91%). The most common motive of poisoning was with a suicidal intent, both in males (27.59%) and females (66.39%). Financial crisis was one of the most common reasons analysed as the motive behind the poisoning (54.20%). Three hundred forty four Patients recovered and 22 were expired. The major cause of death in these cases was respiratory failure followed by multi-organ failure.Conclusion : Strict of the pesticide act and involving a new policy by the government to educate the public and youth in large about the dangerous, life threatening effects of Organophosphorus compound could help amelerioating the harmful effects of such poisoning.KYAMC Journal Vol. 9, No.-3, October 2018, Page 133-135


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