Synthesis and self-assembly of Chitosan-g-Polystyrene copolymer: A new route for the preparation of heavy metal nanoparticles

Raju S. Francis; Deepa K. Baby; Yves Gnanou

doi:10.1016/j.jcis.2014.09.034

Synthesis and self-assembly of Chitosan-g-Polystyrene copolymer: A new route for the preparation of heavy metal nanoparticles

Raju S. Francis, Deepa K. Baby, Yves Gnanou

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

Amphiphilic 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.

Original language	English (US)
Pages (from-to)	110-115
Number of pages	6
Journal	Journal of Colloid and Interface Science
Volume	438
DOIs	https://doi.org/10.1016/j.jcis.2014.09.034
State	Published - Jan 2015

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: RF 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.

ASJC Scopus subject areas

Biomaterials
Surfaces, Coatings and Films
Colloid and Surface Chemistry
Electronic, Optical and Magnetic Materials

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title = "Synthesis and self-assembly of Chitosan-g-Polystyrene copolymer: A new route for the preparation of heavy metal nanoparticles",

abstract = "Amphiphilic 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.",

author = "Francis, {Raju S.} and Baby, {Deepa K.} and Yves Gnanou",

note = "KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: RF 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.",

year = "2015",

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doi = "10.1016/j.jcis.2014.09.034",

language = "English (US)",

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journal = "Journal of Colloid and Interface Science",

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AU - Baby, Deepa K.

AU - Gnanou, Yves

N1 - KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: RF 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.

PY - 2015/1

Y1 - 2015/1

N2 - Amphiphilic 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.

AB - Amphiphilic 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.

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M3 - Article

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SN - 0021-9797

VL - 438

SP - 110

EP - 115

JO - Journal of Colloid and Interface Science

JF - Journal of Colloid and Interface Science

ER -

Synthesis and self-assembly of Chitosan-g-Polystyrene copolymer: A new route for the preparation of heavy metal nanoparticles

Abstract

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ASJC Scopus subject areas

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