Orthorhombic Fddd Network in Diblock Copolymer Melts
Materials Science
2009-11-11 v1 Soft Condensed Matter
Abstract
For the first time a Fddd network structure is found in a poly(styrene-b-isoprene) (S-I) diblock copolymer melts by using small-angle X-ray scattering and transmission electron microscope, as predicted by Tyler et al. by using calculations with self-consistent field theory for diblock copolymer melts. The phase diagram of the S-I exhibits the sequence of Disorder- Fddd-Lamellae with decreasing temperature. The measured unit cell parameters ratios (a,b,c) are (1:2.02:3.46), which agrees with the result of the theoretical calculation.
Keywords
Cite
@article{arxiv.cond-mat/0605268,
title = {Orthorhombic Fddd Network in Diblock Copolymer Melts},
author = {Mikihito Takenaka and Tsutomu Wakada and Satoshi Akasaka and Shotaro Nishitsuji and Kenji Saijo and Hirofumi Shimizu and Hirokazu Hasegawa},
journal= {arXiv preprint arXiv:cond-mat/0605268},
year = {2009}
}
Comments
10 pages, 3 figures