Morphology and Orientation in Thin Film of Polystyrene-b-Polylactide Prepared by Solution-Casting

Jin Fang Zhou; Jian An Zhang; Ting Chen

doi:10.4028/www.scientific.net/AMR.887-888.770

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 887-888Morphology and Orientation in Thin Film of...

Morphology and Orientation in Thin Film of Polystyrene-b-Polylactide Prepared by Solution-Casting

Abstract:

The development of the morphology in asymmetric Polystyrene-b-Polylactide (PS-b-PLA) thin films was investigated by Tapping-mode AFM. The thin films were prepared by solution casting with different evaporation rates. Films were cast onto hydrophobic Si wafers. When PS-b-PLA was dissolved in chloroform, fast evaporation (~110nL/s) produced hexagonally packed perpendicular PLA cylinders in the PS matrix; intermediate evaporation (~25nL/s) generated mixed microstructures of PLA cylinders of either vertical or parallel to the substrate; slow evaporation (~9nL/s) produced the PLA cylinders that were fully parallel to the substrate. This simple one step route is shown where highly oriented, ordered arrays of cylindrical domains of PS-b-PLA can be produced over large distance.

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Periodical:

Advanced Materials Research (Volumes 887-888)

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770-774

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.887-888.770

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Online since:

February 2014

Authors:

Jin Fang Zhou, Jian An Zhang*, Ting Chen

Keywords:

Block Copolymer, Orientation, Polystyrene-Polylactide (PS-B-PLA), Thin Film

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References

[1] Kamcev, J., et al., Chemically Enhancing Block Copolymers for Block-Selective Synthesis of Self-Assembled Metal Oxide Nanostructures. ACS nano, 2012. 7(1): pp.339-346.

DOI: 10.1021/nn304122b

Google Scholar

[2] Otsuka, I., et al., Control of 10 nm scale cylinder orientation in self-organized sugar-based block copolymer thin films. Nanoscale, 2013. 5(7): pp.2637-2641.

DOI: 10.1039/c3nr00332a

Google Scholar

[3] Yager, K.G., et al., Evolution of block-copolymer order through a moving thermal zone. Soft Matter, 2010. 6(1): pp.92-99.

DOI: 10.1039/b916200c

Google Scholar

[4] She, M. -S., T. -Y. Lo, and R. -M. Ho, Long-Range Ordering of Block Copolymer Cylinders Driven by Combining Thermal Annealing and Substrate Functionalization. ACS nano, 2013. 7(3): p.2000-(2011).

DOI: 10.1021/nn305725q

Google Scholar

[5] Morikawa, Y., et al., Optical Alignment and Patterning of Nanoscale Microdomains in a Block Copolymer Thin Film. Adv. Mater., 2006. 18(7): pp.883-886.

DOI: 10.1002/adma.200502573

Google Scholar

[6] Hamley, I.W. and V. Castelletto, Small-angle scattering of block copolymers. Progress in Polymer Science, 2004. 29(9): pp.909-948.

DOI: 10.1016/j.progpolymsci.2004.06.001

Google Scholar

[7] L. Zhua, S.Z.D.C., B.H. Calhouna, Q. Gea, R.P. Quirka, E.L. Thomasb, B.S. Hsiaoc, F. Yehc, B. Lotzd, Phase structures and morphologies determined by self-organization, vitrification, and crystallization: confined crystallization in an ordered lamellar phase of PEO-b-PS diblock copolymer. Polymer 2001. 42(13): pp.5829-5839.

DOI: 10.1016/s0032-3861(00)00902-2

Google Scholar

[8] Kim, G. and M. Libera, Morphological Development in Solvent-Cast Polystyrene- Polybutadiene-Polystyrene (SBS) Triblock Copolymer Thin Films. Macromolecules 1998. 31 (8): pp.2569-2577.

DOI: 10.1021/ma971349i

Google Scholar