Morphology of polyurethane flexible foam prepared using soybean oil derived polyol

Ling Zhang; Hyun K. Jeon; Jeff Malsam; Ron Herrington; Christopher W. Macosko

Morphology of polyurethane flexible foam prepared using soybean oil derived polyol

Ling Zhang, Hyun K. Jeon, Jeff Malsam, Ron Herrington, Christopher W. Macosko

Chemical Engineering and Materials Science

Research output: Contribution to conference › Paper › peer-review

Abstract

In this study three polyurethane (PU) flexible foams were prepared by using polyether polyol and by replacing 30% of the polyether polyol with soybean oil-derived polyol (SBOP) and styrene acrylonitrile (SAN) copolymer filled polyol. Scanning electron microscope, dynamic mechanical analysis (DMA), and small angle X-ray scattering (SAXS) were used to examine the cellular structure and the polymer morphology. Compared to the all petroleum-based PU foams, DMA of the SBOP-containing foam showed broader glass transition temperature accompanied by a more gradual decay of the storage modulus (G′) with temperature. The SAXS results exhibited a decrease in signal intensity as SBOP is incorporated into the foam, which corresponds to a decrease in electron density contrast between the hard and soft phases. Both behaviors observed in DMA and SAXS suggest an increased degree of phase mixing in SBOP-containing foam.

Original language	English (US)
Pages	161-171
Number of pages	11
State	Published - Dec 1 2006
Event	Society of Petroleum Engineers - 5th International Conference on Thermoplastic Foam, FOAMS 2006 - Chicago, IL, United States Duration: Sep 13 2006 → Sep 14 2006

Other

Other	Society of Petroleum Engineers - 5th International Conference on Thermoplastic Foam, FOAMS 2006
Country/Territory	United States
City	Chicago, IL
Period	9/13/06 → 9/14/06

Keywords

Morphology
Polyurethane flexible foam
Soybean oil polyol

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title = "Morphology of polyurethane flexible foam prepared using soybean oil derived polyol",

abstract = "In this study three polyurethane (PU) flexible foams were prepared by using polyether polyol and by replacing 30% of the polyether polyol with soybean oil-derived polyol (SBOP) and styrene acrylonitrile (SAN) copolymer filled polyol. Scanning electron microscope, dynamic mechanical analysis (DMA), and small angle X-ray scattering (SAXS) were used to examine the cellular structure and the polymer morphology. Compared to the all petroleum-based PU foams, DMA of the SBOP-containing foam showed broader glass transition temperature accompanied by a more gradual decay of the storage modulus (G′) with temperature. The SAXS results exhibited a decrease in signal intensity as SBOP is incorporated into the foam, which corresponds to a decrease in electron density contrast between the hard and soft phases. Both behaviors observed in DMA and SAXS suggest an increased degree of phase mixing in SBOP-containing foam.",

keywords = "Morphology, Polyurethane flexible foam, Soybean oil polyol",

author = "Ling Zhang and Jeon, {Hyun K.} and Jeff Malsam and Ron Herrington and Macosko, {Christopher W.}",

year = "2006",

month = dec,

day = "1",

language = "English (US)",

pages = "161--171",

note = "Society of Petroleum Engineers - 5th International Conference on Thermoplastic Foam, FOAMS 2006 ; Conference date: 13-09-2006 Through 14-09-2006",

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T1 - Morphology of polyurethane flexible foam prepared using soybean oil derived polyol

AU - Zhang, Ling

AU - Jeon, Hyun K.

AU - Malsam, Jeff

AU - Herrington, Ron

AU - Macosko, Christopher W.

PY - 2006/12/1

Y1 - 2006/12/1

N2 - In this study three polyurethane (PU) flexible foams were prepared by using polyether polyol and by replacing 30% of the polyether polyol with soybean oil-derived polyol (SBOP) and styrene acrylonitrile (SAN) copolymer filled polyol. Scanning electron microscope, dynamic mechanical analysis (DMA), and small angle X-ray scattering (SAXS) were used to examine the cellular structure and the polymer morphology. Compared to the all petroleum-based PU foams, DMA of the SBOP-containing foam showed broader glass transition temperature accompanied by a more gradual decay of the storage modulus (G′) with temperature. The SAXS results exhibited a decrease in signal intensity as SBOP is incorporated into the foam, which corresponds to a decrease in electron density contrast between the hard and soft phases. Both behaviors observed in DMA and SAXS suggest an increased degree of phase mixing in SBOP-containing foam.

AB - In this study three polyurethane (PU) flexible foams were prepared by using polyether polyol and by replacing 30% of the polyether polyol with soybean oil-derived polyol (SBOP) and styrene acrylonitrile (SAN) copolymer filled polyol. Scanning electron microscope, dynamic mechanical analysis (DMA), and small angle X-ray scattering (SAXS) were used to examine the cellular structure and the polymer morphology. Compared to the all petroleum-based PU foams, DMA of the SBOP-containing foam showed broader glass transition temperature accompanied by a more gradual decay of the storage modulus (G′) with temperature. The SAXS results exhibited a decrease in signal intensity as SBOP is incorporated into the foam, which corresponds to a decrease in electron density contrast between the hard and soft phases. Both behaviors observed in DMA and SAXS suggest an increased degree of phase mixing in SBOP-containing foam.

KW - Morphology

KW - Polyurethane flexible foam

KW - Soybean oil polyol

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T2 - Society of Petroleum Engineers - 5th International Conference on Thermoplastic Foam, FOAMS 2006

Y2 - 13 September 2006 through 14 September 2006

ER -

Morphology of polyurethane flexible foam prepared using soybean oil derived polyol

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