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Structure and physical propertied of nano micelle with the nucleus of multiply twinned particles

多重孪晶核纳米胶束的结构与物理性质

基本信息

批准号：
08459007
负责人：
INO Shozo
金额：
$ 5.18万
依托单位：
Utsunomiya University (1997)The University of Tokyo (1996)
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
1996
资助国家：
日本
起止时间：
1996 至 1997
项目状态：
已结题

项目摘要

We at first constructed a vacuum apparatus in which we can prepare multiply twinned particles (MTP) by deposition. Using this apparatus we made MTP micelle as follows. NaCL of 1,500A were at first deposited on a spherical glass vessel which maintained at 350ﾟC.On this surface, we deposited Au of 100A and NaCL of 1000A alternately and MTPs were buried in the deposited NaCL film. A thiols solution (M beta-mercaptopropionic acid : HSCH_2CH_2COOH,10^<-3>mol/1) was poured into the glass vessel and MTP were covered by thiols molecules, resulting in the MTP micells. We called this moleculer assembly "uni-particles".A drop of the MTP micelle solution was put on a mesh of electron microscope, dried and observed by transmission electron microscope, electron diffraction and acanning electron microscope. Almost of the Au particles were MTPs with average diameter of about 70A.We observed a new phenomenon that when electron beam was concentrated on the sample, some of the MTP micelles started to move to approach in each other and they merged to one particle after 3-5 minutes. We analyzed the composition of the MTP micelles by total reflection angle X-ray spectroscopy (TRAXS) and detected Au and S signals and confirmed the MTP micelle structure. We studied the MTP micelle by electron spectroscopy (UPS,MIES), and obeseved that thiolate molecules of carboxyl acid are stretching toward outside of MTP.Furthermore, we studied the MTP micelle by nucler magnetic resonance (NMR) and confirmed the MTP micelle structure. We have pinted out that the apprication of the MTP micells to metal painting maaterial, column-chromatography, catalytic agent, electronic device, cosmetics etc.

我们首先构建了一个真空装置，在其中可以通过沉积制备多重孪生粒子（MTP）。使用该装置，我们如下制备MTP胶束。首先将1,500A的NaCL沉积在保持在350℃的球形玻璃容器上。在该表面上，我们交替沉积100A的Au和1000A的NaCL，并将MTP埋入沉积的NaCL薄膜中。将硫醇溶液(Mβ-巯基丙酸：HSCH_2CH_2COOH，10^-3mol/1)倒入玻璃容器中，并且MTP被硫醇分子覆盖，产生MTP胶束。我们将这种分子组装体称为“单颗粒”。将一滴MTP胶束溶液放在电子显微镜的网上，干燥并通过透射电子显微镜、电子衍射和扫描电子显微镜观察。 Au颗粒几乎都是MTP，平均直径约为70A。我们观察到一个新现象，当电子束集中在样品上时，一些MTP胶束开始相互靠近，3-5分钟后它们合并成一个颗粒。我们通过全反射角X射线光谱（TRAXS）分析了MTP胶束的组成，并检测了Au和S信号并证实了MTP胶束结构。我们通过电子能谱(UPS,MIES)研究了MTP胶束，观察到羧酸的硫醇盐分子向MTP外侧拉伸。此外，我们通过核磁共振(NMR)研究了MTP胶束，证实了MTP胶束结构。我们已经指出MTP胶束在金属涂装材料、柱色谱、催化剂、电子器件、化妆品等方面的应用。

项目成果

期刊论文数量（33）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

T.Takami 他8名: "Perviodische Structur eines einzelnen Blattes eines Tuchartigon Makromelekusls-Untersuchung des "atomaren Tudrs" mit Raster." Angewande Chamie. 24. 2909-2912 (1997)

T.Takami 和其他 8 人：“Perviodische Structur eines einzelnen Blattes eines Tuchartigon Makromelekusls-Untersuchung des “atomaren Tudrs” mit Raster。24. 2909-2912 (1997)