TY - GEN
T1 - Segmented polyurethane from soyoil polyols
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 poly ether 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 poly ether 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 - And morphology
KW - Polyurethane flexible foam
KW - Soybean oil polyol
UR - http://www.scopus.com/inward/record.url?scp=80053745538&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=80053745538&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:80053745538
SN - 081691012X
SN - 9780816910120
T3 - AIChE Annual Meeting, Conference Proceedings
BT - 2006 AIChE Annual Meeting
T2 - 2006 AIChE Annual Meeting
Y2 - 12 November 2006 through 17 November 2006
ER -