Abstract
In this study, microphase separated structures of a series of block copolymers, which were made of multiple poly(styrene-block-butadiene) (SB) linked at each PB end, were studied by transmission electron microtomography. Depending on the number of SB block copolymer, we obtained star block copolymers with 1 to 4 arms. The 1-armed block copolymer, that is diblock copolymer, exhibited cylindrical morphology. With increasing the number of arms, the morphology changed from cylinder to a mixture of cylinder and network structure. In the 4-armed star SB block copolymer, a large portion of the morphology turned out to be the network morphology.
| Original language | English |
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| Pages | 689 |
| Number of pages | 1 |
| Publication status | Published - 2005 |
| Event | 54th SPSJ Annual Meeting 2005 - Yokohama, Japan Duration: 2005 May 25 → 2005 May 27 |
Conference
| Conference | 54th SPSJ Annual Meeting 2005 |
|---|---|
| Country/Territory | Japan |
| City | Yokohama |
| Period | 05/5/25 → 05/5/27 |
Keywords
- Cylindrical morphology
- Star block copolymer
- Transmission Electron Microtomography