Sorption characterization of poly(vinyl alcohol)/chitosan interpenetrating polymer network hydrogels

Seon Jeong Kim; Ki Jung Lee; Sun I. Kim; Kyu Back Lee; Yong Doo Park

doi:10.1002/app.12540

Sorption characterization of poly(vinyl alcohol)/chitosan interpenetrating polymer network hydrogels

Seon Jeong Kim, Ki Jung Lee, Sun I. Kim, Kyu Back Lee, Yong Doo Park

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

6 Citations (Scopus)

Abstract

Poly(vinyl alcohol) (PVA)/chitosan interpenetrating polymer networks (IPN) were prepared by UV irradiation. The water sorption behavior of the IPNs was measured at various temperatures and humidity levels. The water uptake of IPN13 is greater than that of other IPNs. Vapor sorption behavior is more affected by the density of water vapor than by hydrophilic properties with increasing temperature. Equilibrium water uptake increases as humidity increases, and the increase is more noticeable at high humidity. The sorption system of all IPNs is a relaxation-controlled mechanism at a relative humidity (RH) of 90%, but it is a Fickian diffusion-controlled mechanism when the RH is below 50%. With an increase in humidity, the diffusion coefficients were found to increase due to greater penetration of water into the IPNs.

Original language	English
Pages (from-to)	86-90
Number of pages	5
Journal	Journal of Applied Polymer Science
Volume	90
Issue number	1
DOIs	https://doi.org/10.1002/app.12540
Publication status	Published - 2003 Oct 3

Keywords

Hydrogel
Interpenetrating polymer networks (IPN)
Kinetics

ASJC Scopus subject areas

Chemistry(all)
Surfaces, Coatings and Films
Polymers and Plastics
Materials Chemistry

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10.1002/app.12540

Cite this

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title = "Sorption characterization of poly(vinyl alcohol)/chitosan interpenetrating polymer network hydrogels",

abstract = "Poly(vinyl alcohol) (PVA)/chitosan interpenetrating polymer networks (IPN) were prepared by UV irradiation. The water sorption behavior of the IPNs was measured at various temperatures and humidity levels. The water uptake of IPN13 is greater than that of other IPNs. Vapor sorption behavior is more affected by the density of water vapor than by hydrophilic properties with increasing temperature. Equilibrium water uptake increases as humidity increases, and the increase is more noticeable at high humidity. The sorption system of all IPNs is a relaxation-controlled mechanism at a relative humidity (RH) of 90%, but it is a Fickian diffusion-controlled mechanism when the RH is below 50%. With an increase in humidity, the diffusion coefficients were found to increase due to greater penetration of water into the IPNs.",

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author = "Kim, {Seon Jeong} and Lee, {Ki Jung} and Kim, {Sun I.} and Lee, {Kyu Back} and Park, {Yong Doo}",

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T1 - Sorption characterization of poly(vinyl alcohol)/chitosan interpenetrating polymer network hydrogels

AU - Kim, Seon Jeong

AU - Lee, Ki Jung

AU - Kim, Sun I.

AU - Lee, Kyu Back

AU - Park, Yong Doo

PY - 2003/10/3

Y1 - 2003/10/3

N2 - Poly(vinyl alcohol) (PVA)/chitosan interpenetrating polymer networks (IPN) were prepared by UV irradiation. The water sorption behavior of the IPNs was measured at various temperatures and humidity levels. The water uptake of IPN13 is greater than that of other IPNs. Vapor sorption behavior is more affected by the density of water vapor than by hydrophilic properties with increasing temperature. Equilibrium water uptake increases as humidity increases, and the increase is more noticeable at high humidity. The sorption system of all IPNs is a relaxation-controlled mechanism at a relative humidity (RH) of 90%, but it is a Fickian diffusion-controlled mechanism when the RH is below 50%. With an increase in humidity, the diffusion coefficients were found to increase due to greater penetration of water into the IPNs.

AB - Poly(vinyl alcohol) (PVA)/chitosan interpenetrating polymer networks (IPN) were prepared by UV irradiation. The water sorption behavior of the IPNs was measured at various temperatures and humidity levels. The water uptake of IPN13 is greater than that of other IPNs. Vapor sorption behavior is more affected by the density of water vapor than by hydrophilic properties with increasing temperature. Equilibrium water uptake increases as humidity increases, and the increase is more noticeable at high humidity. The sorption system of all IPNs is a relaxation-controlled mechanism at a relative humidity (RH) of 90%, but it is a Fickian diffusion-controlled mechanism when the RH is below 50%. With an increase in humidity, the diffusion coefficients were found to increase due to greater penetration of water into the IPNs.

KW - Hydrogel

KW - Interpenetrating polymer networks (IPN)

KW - Kinetics

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Sorption characterization of poly(vinyl alcohol)/chitosan interpenetrating polymer network hydrogels

Abstract

Keywords

ASJC Scopus subject areas

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