2003
DOI: 10.1002/mame.200350005
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The Cross‐Linking of Polyurethane Incorporated with Starch Granules and their Rheological Properties: Influences of Starch Content and Reaction Conditions

Abstract: Two series of polyurethanes were synthesized using one‐ and two‐step reactions in a bulk phase at 175 °C with polycaprolactone diol, butane‐1,4‐diol, and 4,4‐diphenylmethane diisocyanate (MDI) in a suspension of starch granules to observe cross‐linking phenomena. Scanning electron microscopy (SEM), differential scanning calorimetry (DSC) analysis, and complex viscosity η*(ω), storage G′(ω), and loss‐modulus G″(ω) as rheological measurements, were carried out to characterize the cross‐linking in the polyurethan… Show more

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Cited by 22 publications
(9 citation statements)
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“…Starch is a renewable natural product with a host of advantages: low density, cost‐effectiveness, abundant supply, and environmental amity; it is widely used in food, paper‐making, fine chemicals, packing material industry, etc. Given the declining source of petroleum, much effort has been devoted to develop starch‐based polymers: that is, chemically modified starch being used as a matrix or filler 1–7. This promising technology is attracting a great deal of attention, since it provides an environmentally friendly alternative to the present petroleum‐based plastics.…”
Section: Introductionmentioning
confidence: 99%
“…Starch is a renewable natural product with a host of advantages: low density, cost‐effectiveness, abundant supply, and environmental amity; it is widely used in food, paper‐making, fine chemicals, packing material industry, etc. Given the declining source of petroleum, much effort has been devoted to develop starch‐based polymers: that is, chemically modified starch being used as a matrix or filler 1–7. This promising technology is attracting a great deal of attention, since it provides an environmentally friendly alternative to the present petroleum‐based plastics.…”
Section: Introductionmentioning
confidence: 99%
“…Among them, starch has more than two hydroxyl groups, and has often been used as either a polyol or a crosslinker in preparation of the PU [18][19][20][21][22]. A potential use of foams prepared from the renewable raw materials includes car seats, since automobile manufacturers are strongly encouraged to use sustainable plastics from an environmental point of view.…”
Section: Introductionmentioning
confidence: 99%
“…Se han realizado modificaciones en la estructura de los segmentos de los poliuretanos para mejorar la degradación. Se ha evaluado la incorporación de componentes naturales a la matriz de poliuretano tales como colágeno, elastina entre otros para la obtención de biomateriales Estas investigaciones se han centrado principalmente en la comprensión de los efectos de los cambios estructurales en las propiedades físicas, sin embargo, el efecto sobre la degradación invitro de los poliuretanos ha sido poco investigado [4][5][6][7][8] .…”
Section: Introductionunclassified