Self-assembly of T-shaped rod-coil block copolymer melts
✍ Scribed by Xia, Yingdong; Chen, Jizhong; Sun, Zhaoyan; Shi, Tongfei; An, Lijia; Jia, Yuxi
- Book ID
- 115460377
- Publisher
- American Institute of Physics
- Year
- 2009
- Tongue
- English
- Weight
- 774 KB
- Volume
- 131
- Category
- Article
- ISSN
- 0021-9606
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## Abstract The amphiphilic PEG~1~ ~500~‐__b__‐EM AP‐__b__‐PEG~1~ ~500~ (EM PAP) triblock copolymer of poly(ethylene glycol) (PEG) and emeraldine aniline‐pentamer (EM AP) in its concentrated solution can self‐assemble into a special shape like “sandglass”, as observed by transmission electron micro
**Organized structures over length scales differing by 10^3^** are reported, i.e., crystals of rod block (unit cell ∼ 1 nm), block copolymer microdomains (layer periodicity ∼ 50 nm), and Néel domain walls (wall periodicity ∼ 1000 nm)—see Figure and inside front cover. The result is an example of com