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dc.contributor.authorFrancis, Raju S.
dc.contributor.authorBaby, Deepa K.
dc.contributor.authorGnanou, Yves
dc.date.accessioned2015-08-03T12:21:35Z
dc.date.available2015-08-03T12:21:35Z
dc.date.issued2015-01
dc.identifier.issn00219797
dc.identifier.pmid25454432
dc.identifier.doi10.1016/j.jcis.2014.09.034
dc.identifier.urihttp://hdl.handle.net/10754/563976
dc.description.abstractAmphiphilic graft copolymers made of a Chitosan (CS) backbone and three arm polystyrene (PS) grafts were prepared by "grafting onto" strategy using Toluene Diisocyanate. IR spectroscopy and SEC show the successful grafting process. SEM pictures of Chitosan-g-Polystyrene (CS-g-PS) indicate a spherulite like surface and exhibit properties that result from the disappearance of Chitosan crystallinity. The introduced polystyrene star grafts units improve hydrophobic properties considerably as confirmed by the very high solubility of (CS-g-PS) in organic solvents. The graft copolymer which self-assembles into polymeric micelles in organic media demonstrates much better adsorption of transition and inner transition metal ions than pure Chitosan whose amine groups are not necessarily available due to crystallinity.
dc.description.sponsorshipRF gratefully thank Prof. R.S.Duran, LSU, USA for the useful discussions in making the precursor star polymer. DKB thank Council of Scientific and Industrial Research (CSIR), Govt of India for research fellowship. RF and DKB also thank University Grants Commission (UGC) - India, Science and Engineering Research Board-Department of Science & Technology (SERB-DST) - India, Fund for Improvement of Science & Technology (FIST) - India and Kerala State Government for financial support.
dc.publisherElsevier BV
dc.subjectAmphiphilic copolymer
dc.subjectChitosan
dc.subjectMetal ion adsorption
dc.subjectNanoparticles
dc.subjectPolystyrene grafts
dc.titleSynthesis and self-assembly of Chitosan-g-Polystyrene copolymer: A new route for the preparation of heavy metal nanoparticles
dc.typeArticle
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Division
dc.contributor.departmentChemical Science Program
dc.identifier.journalJournal of Colloid and Interface Science
dc.contributor.institutionSt Josephs Coll, Post Grad & Res Dept Chem, Calicut 673008, Kerala, India
dc.contributor.institutionMahatma Gandhi Univ, Sch Chem Sci, Kottayam 686560, Kerala, India
kaust.personGnanou, Yves


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