Characterization of poly(vinyl alcohol) grafted with acrylic acid and methylmethacrylate using a Ce(IV) glucose redox system

Mishra, Supriya; Panda, Aditya N.; Singh, B. C.

doi:10.1002/(sici)1097-4628(19990801)73:5<677::aid-app8>3.0.co;2-5

Cited by 14 publications

(17 citation statements)

References 5 publications

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“…Similar behaviours were observed for the degradation of poly(vinyl alcohol) and polyethylene graft copolymers 24. 25, 31…”

Section: Resultssupporting

confidence: 73%

Modification of polystyrene properties through grafting with N‐vinylcarboxamido‐2‐methylpropane sulfonic acid monomer

Aggour

2004

Polymer International

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Polystyrene (PS) possesses good mechanical properties, but its surface is relatively inert and hydrophobic. Grafting of N‐vinylcarboxamido‐2‐methylpropane sulfonic acid (VCMP) is useful to hydrophilize the PS surface. Grafting was performed using benzoyl peroxide (BPO) as an initiator in toluene:methanol solvent mixture (3:1 volume ratio). The influence of the main factors on grafting, such as temperature, time, concentrations of initiator, PS and VCMP, has been studied. The results show that the initial rate of polymerization and percentage of grafting are enhanced by increased temperature. Furthermore, the specific rate constants of the first order reaction/are determined, and the activation energy of the grafting reaction is estimated. The grafting parameters are established and a suitable mechanism of the reaction is proposed. The grafted PS is to characterized through infrared spectra, intrinsic viscosity, thermogravimetric analysis (TGA) and differential gravimetric analysis (DTG). The kinetics of thermal degradation and the order of the thermal stabilities are given. Also the decomposition activation energies of the thermal degradation are determined, and confirm the thermal stabilities of the polymers used. © 2004 Society of Chemical Industry

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“…Similar behaviours were observed for the degradation of poly(vinyl alcohol) and polyethylene graft copolymers 24. 25, 31…”

Section: Resultssupporting

confidence: 73%

Modification of polystyrene properties through grafting with N‐vinylcarboxamido‐2‐methylpropane sulfonic acid monomer

Aggour

2004

Polymer International

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“…The decomposition of PVA is well known in the literature 26. It degrades in two stages, the first at T max about 633 K with weight loss of about 40% and the second at T max about 733 K with the weight loss about 82%.…”

Section: Resultsmentioning

confidence: 68%

“…Characterization of grafted polymers has been done using IR spectra and thermal decomposition studies 9. 10…”

Section: Introductionmentioning

confidence: 99%

Reaction kinetics of graft copolymerization and thermochemical studies of the degradation of poly(vinyl alcohol) graft copolymer

Aggour

2001

Polymer International

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Poly(vinyl alcohol) (PVA) is a water‐soluble and biomedical polymer. 2‐Acrylamido‐2‐methyl‐1‐propanesulfonic acid was grafted onto PVA using ammonium persulfate as radical initiator. The influences of synthesis conditions such as temperature, concentrations of initiator, PVA and monomer were investigated. Both the initial rate of grafting and the final percentage of grafting were increased by an increase in reaction temperature. The reaction kinetics were studied to determine the rate constants of the first‐order reactions. An activation energy of 16.3 kJ mol−1 was found for the grafting reaction. The graft copolymers were characterized by IR and intrinsic viscosity measurements. A proposed mechanism of the grafting reaction is discussed. Kinetics of the thermal degradation were studied using a thermogravimetric method and the order of thermal stabilities are given. The apparent activation thermodynamic parameters, Ea, ΔH*, ΔS* and ΔG* were determined and correlated to the thermal stabilities of the homo‐ and grafted polymers. © 2001 Society of Chemical Industry

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“…Enzymes immobilized on the membrane should maintain their activity for the substrate. Several possible methods for immobilizing the enzymes, such as entrapping [7], formation of poly(ion complex) (PIC) [8], and covalently bonding [9] with the microelectrodes, have been investigated. A PIC membrane, which is based on electrostatic interactions between anionic and cationic polymers, has some advantages that help in maintaining the enzymatic activities, and the filter function protecting the sensor from electroactive species such as uric acid and acetaminophen [10].…”

Section: Introductionmentioning

confidence: 99%

Poly(vinylferrocene-co-2-hydroxyethyl methacrylate) mediator as immobilized enzyme membrane for the fabrication of amperometric glucose sensor

Himuro

Takai

Ishihara

2009

Sensors and Actuators B: Chemical

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Characterization of poly(vinyl alcohol) grafted with acrylic acid and methylmethacrylate using a Ce(IV) glucose redox system

Cited by 14 publications

References 5 publications

Modification of polystyrene properties through grafting with N‐vinylcarboxamido‐2‐methylpropane sulfonic acid monomer

Modification of polystyrene properties through grafting with N‐vinylcarboxamido‐2‐methylpropane sulfonic acid monomer

Reaction kinetics of graft copolymerization and thermochemical studies of the degradation of poly(vinyl alcohol) graft copolymer

Poly(vinylferrocene-co-2-hydroxyethyl methacrylate) mediator as immobilized enzyme membrane for the fabrication of amperometric glucose sensor

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