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A novel modification of superhydrophobic surfaces using supercritical carbon dioxide

使用超临界二氧化碳对超疏水表面进行新型改性

基本信息

批准号：
20510075
负责人：
YOSHIDA Eri
金额：
$ 3万
依托单位：
Toyohashi University of Technology
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2008
资助国家：
日本
起止时间：
2008 至 2010
项目状态：
已结题

项目摘要

Superhydrophobic surfaces were obtained by coating with spherical particles formed by the self-assembly of random copolymers consisting of perfluoroalkyl acrylate and commercial monomers in supercritical carbon dioxide. The random copolymers self-assembled into nano-sized spheres in the heterogeneous state below the cloud points. The ^1NMR demonstrated that the nanospheres had the shelles of perfluoroalkyl chains and the cores of the commercial monomer units. The surfaces coated with the nanospheres were superhydrophobic and showed high water contact angles over 164°. The most superhydrophobic surface was 171.5° obtained from the random copolymer containing amino groups cross-linked electrostatically by a bifunctional acid. It was found that this superhydrophobicity was based on the correlation of the hydrophobicity by the perfluoroalkyl chains and the spherical structure because the cast film showed only 96.5° of the contact angle. Furthermore, in order to obtain much higher hydrophobic surface, a novel photo-living radical polymerization that had environmental benign nature was determined.

超疏水表面是通过涂覆由全氟烷基丙烯酸酯和商业单体组成的无规共聚物在超临界二氧化碳中自组装形成的球形颗粒而获得的。无规共聚物在浊点以下的非均相状态下自组装成纳米球。核磁共振结果表明，纳米微球具有全氟烷基链的壳和商业单体单元的核。用纳米球涂覆的表面是超疏水的，并且显示出超过164°的高水接触角。由双官能酸静电交联的含氨基的无规共聚物获得的最大超疏水表面为171.5°。发现这种超疏水性是基于全氟烷基链和球形结构的疏水性的相关性，因为流延膜仅显示96.5°的接触角。此外，为了获得更高的疏水表面，确定了一种新的具有环境友好性质的光活性自由基聚合。

项目成果

期刊论文数量（0）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Effect of azoinitiators on nitroxide-mediated photo-living radical polymerization of methyl methacrylate

偶氮引发剂对硝基氧介导的甲基丙烯酸甲酯光活性自由基聚合的影响

DOI：
发表时间：
2010
期刊：
Colloid Polym.Sci. 288
影响因子：
0
作者：
桐谷久惠・砂田香矢乃・橋本和仁;他;太田千穂;小野勇次,天野佳正,町田基;大石昇平,天野佳正,相川正美,町田基;吉田絵里
通讯作者：
吉田絵里

Photo-living radical polymerization of methyl methacrylate using alkoxyamine as an initiator

以烷氧基胺为引发剂的甲基丙烯酸甲酯光活性自由基聚合

DOI：
发表时间：
2010
期刊：
Colloid Polym.Sci.
影响因子：
0
作者：
Chiho Ohta;Koichi Haraguchi;Yoshihisa Kato;Mikiko Matsuoka;Tetsuya Endo;Nobuyuki Koga;Chiho Ohta;古宿麻美;Nobuyuki Koga;Eri Yoshida
通讯作者：
Eri Yoshida

Control of micellization induced by disproportionation of 2,2,6,6-tetramethylpiperidine-1-oxyl supported on side chains of a block copolymer

控制嵌段共聚物侧链负载的 2,2,6,6-四甲基哌啶-1-氧基歧化诱导的胶束化

DOI：
发表时间：
2009
期刊：
Colloid Polym.Sci. 287
影响因子：
0
作者：
Chiho Ohta;Koichi Haraguchi;Yoshihisa Kato;Mikiko Matsuoka;Tetsuya Endo;Nobuyuki Koga;Chiho Ohta;古宿麻美;Nobuyuki Koga;Eri Yoshida;坂崎太我;吉田絵里
通讯作者：
吉田絵里

Synthesis of poly(methyl methacrylate)-block-poly(tetrahydrofuran) by photo-living radical polymerization using a 2,2,6,6-tetramethylpiperidine-1-oxyl macromediator

使用 2,2,6,6-四甲基哌啶-1-氧基大介体通过光活性自由基聚合合成聚（甲基丙烯酸甲酯）-嵌段聚（四氢呋喃）