Self Assembled Registered, Layered Crystals in Thin Films Crystalline / Amorphous Block CopolymersMacromolecules (2001)
The preferential interactions of one block of a diblock copolymer with an interface force the orientation of the microdomain morphology parallel to the interface. In thin films of symmetric diblock copolymers, when the film thickness is greater than one period, a layered structure is formed. In the case of diblock copolymers of poly(ethylene oxide) and poly(butadiene) the PEO block crystallizes as a single crystal within a layer thickness defined by the molten copolymer. Electron diffraction studies on multilayered structures showed only four reflections characteristic of the (120) crystal planes. The absences of any other reflections show that the crystals in successive layers are in register with one another, forming a channel-cut crystal structure.
- Layered Crystals,
- Thin Films Crystalline,
- Amorphous Block Copolymer
Citation InformationWilliam MacKnight, Sheng Hong, Thomas P. Russell and Samuel P. Gido. "Self Assembled Registered, Layered Crystals in Thin Films Crystalline / Amorphous Block Copolymers" Macromolecules Iss. 34 (2001) p. 2876 - 2883
Available at: http://works.bepress.com/william_macknight/228/