权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Creation of Special Shape Nano-scale Materials by Using Templates Derived from Higher Ordered

使用源自高序的模板创建特殊形状的纳米材料

基本信息

批准号：
15310085
负责人：
HIRAO Akira
金额：
$ 10.24万
依托单位：
Tokyo Institute of Technology
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2003
资助国家：
日本
起止时间：
2003 至 2005
项目状态：
已结题

项目摘要

Both chain-end-functionalized polystyrene with carboxyl group and core-functionalized 3-arm star-branched polystyrene with carboxyl group were synthesized by the reacting of the corresponding polymer anions with carbon dioxide. α-Functionalized poly(phenyl vinyl sulfoxide)s (PPVS) with aromatic or aliphatic amino groups were also synthesized by the living anionic polymerization of phenyl vinyl sulfoxide with the amine-functionalized initiators. New block copolymers and asymmetric star-branched polymers were prepared by the reaction of the above-mentioned carboxyl-functionalized polystyrene with amine-functionalized PPVS via ion bond formation. These polymers were spin-cast into films, followed by thermal treatment at 150℃ to completely convert their PPVS chains into conductive polyacetylene (PA) segments. Thus, anisotropic conductive films were prepared. Both polystyrene and PA segments were phase-separated at molecular level, followed by self-organization to afford nano-scale periodic ordered lamella and sphere superstructures. The formation of such structures were confirmed by SAX, TEM, SEM, and AEM, respectively. It was observed that their sizes and periodicities as well as shapes were depended upon the chain lengths of PA and compositions. The isolation of the sheet-like or sphere-like nano conductive materials is now being attempted by the cleavage of the ion bonds and subsequent removal of polystyrene segments from the films.

通过相应的聚合物阴离子与二氧化碳反应，合成了端羧基化聚苯乙烯和核羧基化三臂星形支化聚苯乙烯。以苯基乙烯基亚砜为单体，胺官能化引发剂，通过活性阴离子聚合，合成了含芳香族或脂肪族氨基的α-官能化聚苯基乙烯基亚砜（PPVS）。通过上述羧基官能化聚苯乙烯与胺官能化PPVS的离子键反应，制备了新型嵌段共聚物和不对称星形支化聚合物。将这些聚合物旋涂成膜，然后在150℃下热处理，使其PPVS链完全转化为导电聚乙炔（PA）链段。由此，制备各向异性导电膜。聚苯乙烯和PA链段在分子水平上发生相分离，然后自组织形成纳米尺度的周期性有序片层和球形超结构。这种结构的形成分别通过SAX、TEM、SEM和AEM证实。结果表明，它们的大小、周期性和形状取决于PA的链长和组成。片状或球状纳米导电材料的隔离现在正试图通过离子键的断裂和随后从膜中去除聚苯乙烯片段来实现。

项目成果

期刊论文数量（26）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Successive Synthesis of Well-Defined Star-Branched Polymers by a New Iterative Approach Involving Coupling and Transformation Reactions

DOI：
10.1021/ma050248e
发表时间：
2005-04
期刊：
Macromolecules
影响因子：
5.5
作者：
Tomoya Higashihara;M. Nagura;Kyoichi Inoue;N. Haraguchi;A. Hirao
通讯作者：
Tomoya Higashihara;M. Nagura;Kyoichi Inoue;N. Haraguchi;A. Hirao

Synthesis of Well-Defined Dendrimer-like Branched Polymers and Block Copolymer by Iterative Approach Involving Coupling Reaction of Living Anionic Polymer and Functionalization

通过涉及活性阴离子聚合物偶联反应和官能化的迭代方法合成明确的树枝状支化聚合物和嵌段共聚物

DOI：
发表时间：
2004
期刊：
Macromolecules 37
影响因子：
0
作者：
A.Matsuo;T.Watanabe;A.Hirano
通讯作者：
A.Hirano

平尾明: "高分子化学の最近の進歩とナノテクノロジー、21世紀の材料革命を目指して"化学と教育. 50巻2号. 140-142 (2002)

Akira Hirao：“高分子化学和纳米技术的最新进展，旨在实现 21 世纪的材料革命”，《化学与教育》，第 50 卷，第 2 期，140-142（2002 年）。

DOI：
发表时间：
期刊：
影响因子：
0
作者：
通讯作者：

Surface Structure of Asymmetric Fluorinated Block Copolymers

DOI：
10.1021/ma035191f
发表时间：
2004-02
期刊：
Macromolecules
影响因子：
5.5
作者：
Hideaki Yokoyama;Keiji Tanaka;A. Takahara;T. Kajiyama;K. Sugiyama;A. Hirao
通讯作者：
Hideaki Yokoyama;Keiji Tanaka;A. Takahara;T. Kajiyama;K. Sugiyama;A. Hirao

A.Hirao, A.Matsuo: "Synthesis of Chain-End-Functionalized Poly(methyl methacrylate)s with a Definite Number of Benzyl Bromide Moieties and Their Application to Star-Branched Polymers"Macromolecules. 36(26). 9742-9751 (2003)

A.Hirao、A.Matsuo：“具有一定数量的溴化苄部分的链端官能化聚（甲基丙烯酸甲酯）的合成及其在星形支化聚合物中的应用”大分子。