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    Kinetic behaviour of graft copolymerisation of nitrogenous heterocyclic monomer onto EB-irradiated ETFE films

    Sithambaranathan, Paveswari, Nasef, Mohamed, Ahmad, Arshad
    Journal of Radioanalytical and Nuclear Chemistry, 2015, Vol.304(3), pp.1225-1234 [Peer Reviewed Journal]
    Springer Science & Business Media B.V.
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    Title: Kinetic behaviour of graft copolymerisation of nitrogenous heterocyclic monomer onto EB-irradiated ETFE films
    Author: Sithambaranathan, Paveswari; Nasef, Mohamed; Ahmad, Arshad
    Subject: Kinetic investigation ; Radiation induced graft copolymerisation ; 4-Vinyl pyridine ; ETFE film
    Description: Kinetic behaviour of graft copolymerisation of a nitrogenous heterocyclic monomer, 4-vinylpyridine (4-VP), onto electron beam irradiated poly(ethylene-co-tetrafluoroethylene) (ETFE) films was investigated in correlation with reaction parameters (absorbed dose, monomer concentration and reaction temperature). This was established by determination of initial polymerisation rate ( r p0 ), characteristic radical recombination rate (γ) and delay time ( t 0 ). The orders of the dependence of the initial rate of grafting on the absorbed dose and monomer concentration were found to be 2.28 and 3.49, respectively. The effect of temperature was investigated in the range of 50–70 °C and the activation energy was determined. The incorporation of poly(4-VP) grafts and the accompanied chemical changes in the grafted ETFE films were monitored using Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy, respectively. The results of the present study showed that a quantitative kinetic description for grafting of 4-VP onto ETFE can be established and the degree of grafting can be tuned by controlling the reaction parameters.
    Is part of: Journal of Radioanalytical and Nuclear Chemistry, 2015, Vol.304(3), pp.1225-1234
    Identifier: 0236-5731 (ISSN); 1588-2780 (E-ISSN); 10.1007/s10967-015-3927-6 (DOI)

    • Several versions

    Vapor-liquid equilibrium of ethanol/ethyl acetate mixture in ultrasonic intensified environment

    Mahdi, Taha, Ahmad, Arshad, Ripin, Adnan, Nasef, Mohamed
    Korean Journal of Chemical Engineering, 2014, Vol.31(5), pp.875-880 [Peer Reviewed Journal]

    • Several versions

    Environmentally benign and highly regioselective ring opening of epoxides accelerated by ultrasound irradiation

    Nasef, Mohamed Mahmoud, Zakeri, Masoumeh, Asadi, Jahanbakhsh, Abouzari-Lotf, Ebrahim, Ahmad, Arshad, Malakooti, Reihaneh
    Green chemistry letters and reviews, 02 January 2016, Vol.9(1), pp.76-84 [Peer Reviewed Journal]

    • Several versions

    An Optimized Covalent Immobilization of Glucamine on Electrospun Nanofibrous Poly(vinylidene fluoride) Sheets Grafted with Oxirane Groups for Higher Boron Adsorption

    Nallappan, Madana, Nasef, Mohamed, Ting, Teo, Ahmad, Arshad
    Fibers and Polymers, 2018, Vol.19(8), pp.1694-1705

    • Several versions

    Highly conductive anion exchange membranes based on polymer networks containing imidazolium functionalised side chains

    Abouzari-Lotf, Ebrahim, Jacob, Mohan V, Ghassemi, Hossein, Zakeri, Masoumeh, Nasef, Mohamed Mahmoud, Abdolahi, Yadollah, Abbasi, Ali, Ahmad, Arshad
    Scientific reports, 12 February 2021, Vol.11(1), pp.3764 [Peer Reviewed Journal]