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- W2908163065 abstract "The new poly(ester-etherurethane)s (PEEUR) were prepared in two stage syntheses from formerly obtained oligo(alkylene ester-ether)diols (OAEE) and 4,4'-diphenylmethane diisocyanate (MDI). PEEUR samples were subjected to crosslinking with styrene in the presence of radical polymerization initiators: methyl ethyl ketone peroxide (MEKPO) or cobalt 2-ethyl cyclohexanoate (EtHCo) (Table 1). Crosslinked PEEUR were characterized by their mechanical strength properties, dynamic mechanical thermal analysis (DMTA), thermogravimetric analysis (TG) (Table 2) and transmission electron microscopy (TEM) (Fig. 2). The structures were confirmed by FT-IR method (Fig. 1). Tensile strength of poly(ester-etherurethane)s prepared was in the range 8-29MPa, hardness: 24.9-28.3°Sh D, thermal stability (expressed as temperature of 10% weight loss) in the range 298-333°C and glass transition temperature was 50-76°C. Microscopic observations showed that the materials obtained were homogeneous in micrometric scale." @default.
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- W2908163065 date "2009-11-01" @default.
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- W2908163065 title "Syntheses, chemical strustures and properties of poly(ester-etherurethane)s crosslinked with styrene, synthesized from unsaturated oligo(alkylene ester-ether)diols and 4,4'-diphenylmethane diisocyanate" @default.
- W2908163065 doi "https://doi.org/10.14314/polimery.2009.781" @default.
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