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- W4233417076 abstract "Calcium-containing poly(urethane-urea)s (PUUs) were synthesized by reacting hexamethylene diisocyanate (HMDI) or tolylene 2,4-diisocyanate (TDI) with 1:1 mixtures of calcium salt of mono(hydroxypentyl)phthalate [Ca(HPP)2] and each of the bisureas like hexamethylene bis(ω,N-hydroxyethylurea) (HBHEU), tolylene 2,4-bis(ω,N-hydroxyethylurea) (TBHEU), hexamethylene bis(ω,N-hydroxypropylurea) (HBHPU), and tolylene 2,4-bis(ω,N-hydroxypropylurea) (TBHPU) using di-n-butyltin dilaurate (DBTDL) as catalyst. The PUUs were well characterized by FT-IR, 1H & 13C-NMR, solid-state 13C-CP-MAS NMR, viscosity, solubility, elemental analysis, and X-ray diffraction studies. Thermal properties of the polymers were also studied using thermogravimetric analysis and differential scanning calorimetry." @default.
- W4233417076 created "2022-05-12" @default.
- W4233417076 date "2004-04-15" @default.
- W4233417076 modified "2023-09-26" @default.
- W4233417076 doi "https://doi.org/10.1002/pola.v42:8" @default.
- W4233417076 hasPublicationYear "2004" @default.
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