Structure and property characterization of nanograde core-shell polyurethane/polyacrylate composite emulsion
作者： Shu Ling Chai , Hui Min Tan
DOI: 10.1002/APP.27517
关键词: Emulsion polymerization 、 Acrylate 、 Emulsion 、 Polyurethane 、 Composite material 、 Polyelectrolyte 、 Isophorone diisocyanate 、 Materials science 、 Polymer 、 Composite number 、 Materials Chemistry 、 General chemistry 、 Surfaces, Coatings and Films 、 Polymers and Plastics
摘要: Anionic aqueous polyurethane dispersion was synthesized through self-emulsifing method from cycloaliphatic isophorone diisocyanate (IPDI) and dimethylolpropionic acid (DMPA). The carboxyl group in DMPA used to make the dispersible. polyurethane/polyacrylate (PU/PA) composite particles were also prepared by seeded surfactant-free emulsion polymerization; as seed particles. structures properties of well physical mixture polyacrylate characterized FTIR, DSC, dynamic light scattering, TEM, X-ray photoelectron spectroscopy (ESCA), electronic tensile machine. results showed that PU/PA found form inverted core-shell structure with core shell, its diameter is range nanograde, crosslinking reaction existed emulsion. intimate molecular mixing polymers are claims result a superior balance compared blends acrylate mechanism discussed. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci, 2008
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