New Epitaxial Phase Transition between DG and HEX in PS-b-PI
SCIE
SCOPUS
- Title
- New Epitaxial Phase Transition between DG and HEX in PS-b-PI
- Authors
- Park, HW; Jung, J; Chang, T; Matsunaga, K; Jinnai, H
- Date Issued
- 2009-01-14
- Publisher
- AMER CHEMICAL SOC
- Abstract
- We investigated the epitaxial phase transition from double gyroid (DG) to hexagonally packed cylinder (HEX) phases of a polystyrene-b-polyisoprene diblock copolymer in a thin film on a Si wafer substrate. The internal structure of the thin film was investigated by grazing incidence small-angle X-ray scattering, transmission electron microscopy, and transmission electron microtomography (TEMT). TEMT allows observation of the 3D-image of coexisting DG and HEX directly. Good domain orientation in the thin film and direct 3D-imaging of TEMT made it possible to observe the coexisting phase of DG and HEX, and a new epitaxial transition path from DG to HEX was found.
- Keywords
- DIBLOCK COPOLYMER MELTS; HEXAGONALLY PERFORATED LAYER; TO-GYROID TRANSITION; BLOCK-COPOLYMER; CUBIC PHASE; THIN-FILM; CYLINDER; MECHANISM; TRANSFORMATIONS; POLYISOPRENE
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/28953
- DOI
- 10.1021/JA808259M
- ISSN
- 0002-7863
- Article Type
- Article
- Citation
- JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, vol. 131, no. 1, page. 46 - +, 2009-01-14
- Files in This Item:
- There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.