Preparation of Nanoporous Poly(3-hexylthiophene) films based on a Template System of Block Copolymers via Ionic Interaction
SCIE
SCOPUS
- Title
- Preparation of Nanoporous Poly(3-hexylthiophene) films based on a Template System of Block Copolymers via Ionic Interaction
- Authors
- Ayumi Takahashi; Yecheol Rho; Tomoya Higashihara; Byungcheol Ahn; Ree, M; Mitsuru Ueda
- Date Issued
- 2010-06-08
- Publisher
- ACS
- Abstract
- A series of well-defined aniline-chain-end-functionalized regioregular poly(3-hexylthiophene)s (P3HT-NH2) and sulfo-chain-end-functionalized polystyrene (PS-SO3H) have been prepared based on quasi-living Grignard metathesis and living anionic polymerization, respectively. Block copolymers via ionic interaction. (P3HT-NH3+)-b-(PS-SO3(-))s, were successfully synthesized, simply by blending P3HT-NH2 with PS-SO3H in toluene. The thermal and optical properties of the block copolymers were investigated by differential scanning calorimetry (DSC) and ultraviolet visible (UV-vis) spectroscopy. The self-assembly behavior of the (P3HT-NH3+)-b-(PS-SO3-) thin film was observed by atomic force microscopy (AFM) and transmission electron microscopy (TEM). In addition, grazing incidence X-ray scattering (GIXS) analysis found the microphase separation of P3HT-NH3+ and PS-SO3- domains as well as the packing behavior of P3HT-NH3+ segments in block copolymer thin films. By exploiting the pH-sensitive ionic interaction, the PS-SO3- domains were selectively etched with ethyl acetate/triethylamine, cleaving the ionic interaction between P3HT-NH3+ and PS-SO3- segments. to obtain the target nanoporous P3HT-NH2, films. The porosity of the films was confirmed by AFM, scanning electron microscopy (SEM) and GIXS analyses.
- Keywords
- ORGANOSILICATE DIELECTRIC FILMS; CHAIN-GROWTH POLYMERIZATION; HALATO-TELECHELIC POLYMERS; FUNCTIONAL SILYL GROUPS; STAR-BRANCHED POLYMERS; FACILE SYNTHESIS; REGIOREGULAR POLY(3-HEXYLTHIOPHENE); POLYSTYRENE SEGMENTS; POROUS MEMBRANES; THIN-FILMS
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/25795
- DOI
- 10.1021/ma100957q
- ISSN
- 0024-9297
- Article Type
- Article
- Citation
- MACROMOLECULES, vol. 43, no. 11, page. 4843 - 4852, 2010-06-08
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- There are no files associated with this item.
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