2004 Fiscal Year Final Research Report Summary
Science and Functions of Densely Grafted solid Surfaces
| Project/Area Number |
14205131
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
高分子合成
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| Research Institution | KYOTO UNIVERSITY |
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Principal Investigator |
FUKUDA Takeshi Kyoto University, Inst.Chem.Res., Professor, 化学研究所, 教授 (00111972)
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| Co-Investigator(Kenkyū-buntansha) |
TSUJII Yoshinobu Kyoto University, Inst.Chem.Res., Associate Professor, 化学研究所, 助教授 (00217308)
OHNO Khoji Kyoto University, Inst.Chem.Res., Instructor, 化学研究所, 助手 (00335217)
GOTO Atsushi Kyoto University, Inst.Chem.Res., Instructor, 化学研究所, 助手 (20335219)
KISHIDA Akio Tokyo Medical and Dental University, Biomaterials and Bioengineering, Professor, 生体材料工学研究所, 教授 (60224929)
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| Project Period (FY) |
2002 – 2004
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| Keywords | high-density brushes / new surfaces / high modulus / extreme lubricity / size-excluding / adhesion-preventing / composite nanoparticles / self-ordering |
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| Research Abstract |
We studied the structure, properties, and functions of high-density polymer brushes from a range of angles to obtain the following new findings : (1)High-density dry brushes have higher glass transition temperatures and (2)higher compression moduli than equivalent spin-cast films, and (3)they are immiscible with homologous free polymers. (4) While high-density brushes swollen in a good solvent also have high compression moduli, (5)they exhibit extremely low friction coefficients. (6)Silica monolith columns with high-density poly (methyl methacrylate) (PMMA) brushes grafted on their surfaces show a size-exclusion effect by the brush layer. (7)Surfaces with high-density poly (hydroxyethyl methacrylate) (PHEMA) brushes effectively prevent adsorption and adhesion of protein molecules. (8)Gold and silica nanoparticles dispersed in a good solvent for the brush polymer form 2- and 3-dimensionally ordered structures with a very large particle-to-particle nearest distance, even comparable to the full length of the graft chains. These results are specific to high-density brushes, but not to medium-to-low density brushes, and suggest possible applications of high-density polymer brushes to various fields of science and technology.
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[Patent(Industrial Property Rights)] ケイ素化合物2003
Inventor(s)
山廣幹夫, 及川尚夫, 山本泰弘, 田中雅美, 渡辺健一, 大竹伸昌, 大野工司, 辻井敬亘, 福田猛
Industrial Property Rights Holder
チッソ(株)
Industrial Property Number
特願2003-62135
Filing Date
2003-03-07
Description
「研究成果報告書概要(和文)」より
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