Controlling the Morphologies of Organometallic Block Copolymers in the 3-Dimensional Spatial Confinement of Colloidal and Inverse Colloidal Crystals

详细信息    查看全文

• 作者：David A. Rider ; Jennifer I. L. Chen ; Jean-Charles Eloi ; André ; C. Arsenault ; Thomas P. Russell ; Geoffrey A. Ozin ; Ian Manners
• 刊名：Macromolecules
• 出版年：2008
• 出版时间：March 25, 2008
• 年：2008
• 卷：41
• 期：6
• 页码：2250 - 2259
• 全文大小：937K
• 年卷期：v.41,no.6(March 25, 2008)
• ISSN：1520-5835

文摘

A detailed study of the three-dimensional (3-D) confinement of polystyrene-block-poly(ferrocenylethylmethylsilane) (PS-b-PFS) diblock copolymers in silica colloidal crystals and inverse silica colloidal crystalsis reported. Inversion of the silica colloidal crystal lattice with PS-b-PFS is confirmed by scanning electronmicroscopy and optical spectroscopy. Additionally, the modification of the silica surfaces in the inverse colloidalcrystals using hydroxy-terminated PS and PFS is established. The 3-D confined morphologies of a lamella-forming and a cylinder-forming PS-b-PFS diblock copolymer are subsequently investigated. The manipulationof the 3-D confined morphology of cylinder-forming PS-b-PFS is demonstrated by deliberate alteration of itswetting interaction with the surface-modified colloidal crystal templates. Unprecedented 3-dimensional blockcopolymer morphology transitions are elucidated.