Studies on graft copolymerization of 2-hydroxyethyl acrylate onto chitosan

Grigoriy A. Mun; Zauresh S. Nurkeeva; Sergey A. Dergunov; Irina K. Nam; Tauzhan P. Maimakov; Erengaip M. Shaikhutdinov; Sang Cheon Lee; Kinam Park

doi:10.1016/j.reactfunctpolym.2007.07.012

Studies on graft copolymerization of 2-hydroxyethyl acrylate onto chitosan

Grigoriy A. Mun, Zauresh S. Nurkeeva, Sergey A. Dergunov, Irina K. Nam, Tauzhan P. Maimakov, Erengaip M. Shaikhutdinov, Sang Cheon Lee, Kinam Park

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72 Citations (Scopus)

Abstract

Graft-polymerization of 2-hydroxyethyl acrylate (HEA) onto chitosan (CS) using ammonium persulfate (APS) as an initiator was carried out in an aqueous solution. Evidence of grafting was obtained by comparing ¹H NMR and FT-IR spectra and scanning electron microscopy images of chitosan and the grafted copolymer as well as solubility characteristics of the products. The effects of APS, HEA concentration, reaction temperature and duration of graft-polymerization were studied by determining the grafting parameters, such as grafting percentage and grafting efficiency. The HEA-grafted chitosan product is soluble in a wide pH range, while the original unmodified chitosan is water-soluble only in a narrow pH range. A mechanism for the free-radical grafting was proposed.

Original language	English
Pages (from-to)	389-395
Number of pages	7
Journal	Reactive and Functional Polymers
Volume	68
Issue number	1
DOIs	https://doi.org/10.1016/j.reactfunctpolym.2007.07.012
Publication status	Published - Jan 2008

Keywords

2-Hydroxyethyl acrylate
Chitosan
Dynamic viscosity
FT-IR
Graft-polymerization
NMR

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10.1016/j.reactfunctpolym.2007.07.012

Cite this

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title = "Studies on graft copolymerization of 2-hydroxyethyl acrylate onto chitosan",

abstract = "Graft-polymerization of 2-hydroxyethyl acrylate (HEA) onto chitosan (CS) using ammonium persulfate (APS) as an initiator was carried out in an aqueous solution. Evidence of grafting was obtained by comparing 1H NMR and FT-IR spectra and scanning electron microscopy images of chitosan and the grafted copolymer as well as solubility characteristics of the products. The effects of APS, HEA concentration, reaction temperature and duration of graft-polymerization were studied by determining the grafting parameters, such as grafting percentage and grafting efficiency. The HEA-grafted chitosan product is soluble in a wide pH range, while the original unmodified chitosan is water-soluble only in a narrow pH range. A mechanism for the free-radical grafting was proposed.",

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AU - Mun, Grigoriy A.

AU - Nurkeeva, Zauresh S.

AU - Dergunov, Sergey A.

AU - Nam, Irina K.

AU - Maimakov, Tauzhan P.

AU - Shaikhutdinov, Erengaip M.

AU - Lee, Sang Cheon

AU - Park, Kinam

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N2 - Graft-polymerization of 2-hydroxyethyl acrylate (HEA) onto chitosan (CS) using ammonium persulfate (APS) as an initiator was carried out in an aqueous solution. Evidence of grafting was obtained by comparing 1H NMR and FT-IR spectra and scanning electron microscopy images of chitosan and the grafted copolymer as well as solubility characteristics of the products. The effects of APS, HEA concentration, reaction temperature and duration of graft-polymerization were studied by determining the grafting parameters, such as grafting percentage and grafting efficiency. The HEA-grafted chitosan product is soluble in a wide pH range, while the original unmodified chitosan is water-soluble only in a narrow pH range. A mechanism for the free-radical grafting was proposed.

AB - Graft-polymerization of 2-hydroxyethyl acrylate (HEA) onto chitosan (CS) using ammonium persulfate (APS) as an initiator was carried out in an aqueous solution. Evidence of grafting was obtained by comparing 1H NMR and FT-IR spectra and scanning electron microscopy images of chitosan and the grafted copolymer as well as solubility characteristics of the products. The effects of APS, HEA concentration, reaction temperature and duration of graft-polymerization were studied by determining the grafting parameters, such as grafting percentage and grafting efficiency. The HEA-grafted chitosan product is soluble in a wide pH range, while the original unmodified chitosan is water-soluble only in a narrow pH range. A mechanism for the free-radical grafting was proposed.

KW - 2-Hydroxyethyl acrylate

KW - Chitosan

KW - Dynamic viscosity

KW - FT-IR

KW - Graft-polymerization

KW - NMR

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VL - 68

SP - 389

EP - 395

JO - Reactive and Functional Polymers

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ER -

Studies on graft copolymerization of 2-hydroxyethyl acrylate onto chitosan

Abstract

Keywords

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