Thermal Characterizations of Semi-Interpenetrating Polymer Networks Composed of Poly(ethylene oxide) and Poly(N-isopropylacrylamide)

Seon Jeona Kim; Chang Kee Lee; Young Moo Lee; Kyu Back Lee; Yong Doo Park; Sun I. Kim

doi:10.1002/app.13160

Thermal Characterizations of Semi-Interpenetrating Polymer Networks Composed of Poly(ethylene oxide) and Poly(N-isopropylacrylamide)

Seon Jeona Kim, Chang Kee Lee, Young Moo Lee, Kyu Back Lee, Yong Doo Park, Sun I. Kim

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

12 Citations (Scopus)

Abstract

Poly(N-isopropylacrylamide) (PNIPAAm)/poly(ethylene oxide) (PEO) semi-interpenetrating polymer networks (semi-IPNs) synthesized by radical polymerization of N-isopropylacrylamide (NIPAAm) in the presence of PEO. The thermal characterizations of the semi-IPNs were investigated by differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), and dielectric analysis (DEA). The melting temperature (T_m) of semi-IPNs appeared at around 60°C using DSC. DEA was employed to ascertain the glass transition temperature (T_g) and determine the activation energy (E_a) of semi-IPNs. From the results of DEA, semi-IPNs exhibited one T_g indicating the presence of phase separation in the semi-IPN, and T_gs of semi-IPNs were observed with increasing PNIPAAm content. The thermal decomposition of semi-IPNa was investigated using TGA and appeared at around 370°C.

Original language	English
Pages (from-to)	3922-3927
Number of pages	6
Journal	Journal of Applied Polymer Science
Volume	90
Issue number	14
DOIs	https://doi.org/10.1002/app.13160
Publication status	Published - 2003 Dec 27

Keywords

Activation energy
Poly(N-isopropylacrylamide)
Poly(ethylene oxide)
Thermal properties

ASJC Scopus subject areas

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

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title = "Thermal Characterizations of Semi-Interpenetrating Polymer Networks Composed of Poly(ethylene oxide) and Poly(N-isopropylacrylamide)",

abstract = "Poly(N-isopropylacrylamide) (PNIPAAm)/poly(ethylene oxide) (PEO) semi-interpenetrating polymer networks (semi-IPNs) synthesized by radical polymerization of N-isopropylacrylamide (NIPAAm) in the presence of PEO. The thermal characterizations of the semi-IPNs were investigated by differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), and dielectric analysis (DEA). The melting temperature (Tm) of semi-IPNs appeared at around 60°C using DSC. DEA was employed to ascertain the glass transition temperature (Tg) and determine the activation energy (Ea) of semi-IPNs. From the results of DEA, semi-IPNs exhibited one Tg indicating the presence of phase separation in the semi-IPN, and Tgs of semi-IPNs were observed with increasing PNIPAAm content. The thermal decomposition of semi-IPNa was investigated using TGA and appeared at around 370°C.",

keywords = "Activation energy, Poly(N-isopropylacrylamide), Poly(ethylene oxide), Thermal properties",

author = "Kim, {Seon Jeona} and Lee, {Chang Kee} and Lee, {Young Moo} and Lee, {Kyu Back} and Park, {Yong Doo} and Kim, {Sun I.}",

year = "2003",

month = dec,

day = "27",

doi = "10.1002/app.13160",

language = "English",

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T1 - Thermal Characterizations of Semi-Interpenetrating Polymer Networks Composed of Poly(ethylene oxide) and Poly(N-isopropylacrylamide)

AU - Kim, Seon Jeona

AU - Lee, Chang Kee

AU - Lee, Young Moo

AU - Lee, Kyu Back

AU - Park, Yong Doo

AU - Kim, Sun I.

PY - 2003/12/27

Y1 - 2003/12/27

N2 - Poly(N-isopropylacrylamide) (PNIPAAm)/poly(ethylene oxide) (PEO) semi-interpenetrating polymer networks (semi-IPNs) synthesized by radical polymerization of N-isopropylacrylamide (NIPAAm) in the presence of PEO. The thermal characterizations of the semi-IPNs were investigated by differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), and dielectric analysis (DEA). The melting temperature (Tm) of semi-IPNs appeared at around 60°C using DSC. DEA was employed to ascertain the glass transition temperature (Tg) and determine the activation energy (Ea) of semi-IPNs. From the results of DEA, semi-IPNs exhibited one Tg indicating the presence of phase separation in the semi-IPN, and Tgs of semi-IPNs were observed with increasing PNIPAAm content. The thermal decomposition of semi-IPNa was investigated using TGA and appeared at around 370°C.

AB - Poly(N-isopropylacrylamide) (PNIPAAm)/poly(ethylene oxide) (PEO) semi-interpenetrating polymer networks (semi-IPNs) synthesized by radical polymerization of N-isopropylacrylamide (NIPAAm) in the presence of PEO. The thermal characterizations of the semi-IPNs were investigated by differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), and dielectric analysis (DEA). The melting temperature (Tm) of semi-IPNs appeared at around 60°C using DSC. DEA was employed to ascertain the glass transition temperature (Tg) and determine the activation energy (Ea) of semi-IPNs. From the results of DEA, semi-IPNs exhibited one Tg indicating the presence of phase separation in the semi-IPN, and Tgs of semi-IPNs were observed with increasing PNIPAAm content. The thermal decomposition of semi-IPNa was investigated using TGA and appeared at around 370°C.

KW - Activation energy

KW - Poly(N-isopropylacrylamide)

KW - Poly(ethylene oxide)

KW - Thermal properties

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Thermal Characterizations of Semi-Interpenetrating Polymer Networks Composed of Poly(ethylene oxide) and Poly(N-isopropylacrylamide)

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Keywords

ASJC Scopus subject areas

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