Aqueous polyurethane dispersions derived from polycarbonatediols
作者： Da-Kong Lee , Hong-Bing Tsai , Hsine-Hsyan Wang , Ruey-Shi Tsai
DOI: 10.1002/APP.21090
关键词:
摘要: Aqueous polyurethane dispersions derived from polycarbonatediols, isophorone diisocyanate, and carboxylic diols including dimethylol propionic acid butyric were prepared. The effect of dispersing procedure is investigated by FT IR, GPC, the tensile film properties. prepared a standard exhibit lower molecular weights due to overhydrolysis NCO groups. modified significantly higher more effective chain extension, their cast films strength. particle size, properties, thermal dynamic mechanical properties are investigated. chemical structure polycarbonatediols seems affect glass transition temperature soft segments, Tg(S), can be seem DSC DMA data. © 2004 Wiley Periodicals, Inc. J Appl Polym Sci 94: 1723–1729,
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