2014 Fiscal Year Final Research Report
Fabrication of light-responsive nanostructures by the self-assembly of functionalized celluloses
| Project/Area Number |
24750218
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Polymer/Textile materials
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| Research Institution | Kyoto University |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
TSUJII Yoshinobu 京都大学, 化学研究所, 教授 (00217308)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Keywords | ナノ構造 / 光応答性 / セルロース / ポリマーブラシ / 液晶 |
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| Outline of Final Research Achievements |
The self-assembly of a regioselectively functionalized cellulose in a confined two-dimensional interface was investigated, leading to the polysaccharide-based rod-shaped nanostructures mimicking the naturally-occurring chloroplasts. AFM and GIWAXS were demonstrated to reveal the structure of cellulose nanorods. The obtained nanorods having pyro-pheophorbide a chromophores exhibit interesting optical properties, displaying a larger bathochromic shift than their solution and drop-cast film counterparts. The photofunctional utilization of the cellulose nanorods was demonstrated by the photocurrent measurements. Hence, these finding provides an excellent argument in favor of a good strategy for the preparation of two-dimensional polysaccharide-based nanostructures. Furthermore, the colloidal suspension of cellulose nanofiber (CNF)/ nanowhisker (CNW) decorated with concentrated polymer brushes was studied, which can be a promising system for the construction of ordered structure.
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| Free Research Field |
高分子化学
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