Lubricant-Oil-Dispersible Stainless-Steel-Binding Block Copolymer Nanoaggregates and Nanospheres

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• 作者：Ronghua Zheng ; Jiandong Wang ; Guojun Liu ; Tze-Chi Jao
• 刊名：Macromolecules
• 出版年：2007
• 出版时间：October 16, 2007
• 年：2007
• 卷：40
• 期：21
• 页码：7601 - 7608
• 全文大小：359K
• 年卷期：v.40,no.21(October 16, 2007)
• ISSN：1520-5835

文摘

Nanoaggregates were prepared from five samples of poly[(2-ethylhexyl acrylate)-ran-(tert-butylacrylate)]-block-poly(2-cinnamoyloxyethyl acrylate), P(EXA-tBA)-PCEA in block-selective solvents for P(EXA-tBA). The effect of varying diblock composition, block-selective solvent, and equilibrium temperature on thesize and shape of the nanoaggregates formed was investigated. Nanospheres were obtained after the photo-cross-linking of the spherical nanoaggregates. The tBA groups in the corona of these nanospheres could be hydrolyzedto give P(EXA-tBA-AA), where AA denotes acrylic acid, with a controlled fraction of AA units. Nanosphereswith low contents of AA groups in their corona disperse well in low-polarity solvents and bind effectively tostainless-steel surfaces.