4Yu, X, Copper.S.L., et al., Polydimethylsiloxane-Polyure-thane Elastomers: Synthesis and Properties of Segrneted Copolymers and Related Zwitterionomers, J.Polym.Sci., Polym Phys. Ed., 1985, (23): 2319.
5Tai Ho, Kenneth J.Wynne, et al., Polydimethylsiloxane-Urethene Copolymers with 1, 4-Benzenedimethenol as Chain Extender, Macromolecules, 1993, (26): .7029.
6R.E.Tirpak, P.H. Markusch, "Aqueous Dispprsiom of Crosslinked Polyurethanes", Journal of Coatings Technology,1986, 58, 738.
7P. B. Jaoobs and P. C. Yu, "Two- Component waterborne Polyurethane Coatings, Journal of Coatings Technology",1993. 65. 822.
9Wu Limin.,Chen Xichong,"Characterization of Polyester Based Polyurethane/Nano-Silica Composites Prepared by In-situ Polymerization",International Forum on Coating Science and Technology,Athens,Greece,July,2002
10Zhou Shuxue.,WuLimin,"The Change of the Properties of Acrylic based Polyurethane via Addition of Nano-silica",Progress in Organic Coatings,in press.