Temperature dependence of block copolymer thin films with different film thickness

Naoya Torikai, Daisuke Kawaguchi, Atsushi Takano, Yushu Matsushita, Robert Dalgliesh, Sean Langridge

Research output: Contribution to conferencePaperpeer-review


Interfacial structure of a styrene-d8-2-vinylpyridine diblock copolymer thin films with lamellar microdomain was investigated by neutron reflectivity (NR) measurement at different temperatures above Tg of the component polymer. The thin film specimens with different film thicknesses were prepared by spin-coating method, and then annealed at 170°C in vacuum during more than one week before NR measurement. The observed specular reflectivity profiles exhibit several Bragg peaks up to high order, implying that the lamellar structure keeps highly-ordered state and preferential orientation along the direction parallel to the film surface even at high temperature above Tg. Further, it was found that the temperature dependence of lamellar domain spacing is different according the difference in total film thickness.

Original languageEnglish
Number of pages2
Publication statusPublished - 2005
Externally publishedYes
Event54th SPSJ Symposium on Macromolecules - Yamagata, Japan
Duration: Sept 20 2005Sept 22 2005


Other54th SPSJ Symposium on Macromolecules

All Science Journal Classification (ASJC) codes

  • General Engineering


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