2007 Fiscal Year Final Research Report Summary
Formation of Polyamide Nanoclusters at the Interfaces of Reverse Micelles Adsorbed and Their Application to Separation.
| Project/Area Number |
18550075
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
Analytical chemistry
|
|---|
| Research Institution | Hiroshima University |
|---|
Principal Investigator |
FUJIWARA Terufumi Hiroshima University, Graduate School of Science, Professor (80127703)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
TSUKAHARA Satoshi Hiroshima University, Graduate School of Science, Associate Professor (50207338)
OKAMOTO Yasuaki Hiroshima University, Graduate School of Science, Assistant Professor (40213988)
|
|---|
| Project Period (FY) |
2006 – 2007
|
| Keywords | reverse micelle / adsorption / interface / polyamide / silica gel / separation / nanocluster / liquid chromatogrphy |
|---|
| Research Abstract |
For the purpose of studying the feasibility of preparing a surface modified with grafted polyamide brushes using a reverse micelle immobilized as a microreactor, nylon-6,6 was synthesized in cetyltrimethylammonium chloride (CTAC) reverse micelles adsorbed on silica surfaces. The nylon-modified silica gel preparation procedure involved: (1) adsorption of the CTAC reverse micelles containing 1,6-hexanediamine and sodium hydroxide onto silica gel surfaces, (2) in situ polymerization of 1,6-hexanediamine and adipoyl dichloride at the reversed micellar interfaces, and (3) the removal of residual components such as CTAC or reverse micelles. The adsorption behavior of 1,6-hexanediamine onto silica gels using the reverse micelles was also examined. After retrieving the produced nylon from the silica gel using 1,1,1,3,3,3-hexafluoro-2-propanol, infrared spectroscopy was used to identify it, and its molecular weight and molecular weight distribution were determined by gel permeation chromatography. The desorption behavior of the immobilized nylon implies that the principal interaction in the immobilization of nylon on silica may be hydrogen bonding between the terminal amine groups of nylon and the surface silanol groups. The immobilization was investigated by thermogravimetric analysis and transmission electron microscopy. Characterization of monolayers of nylon attached to glass plate surfaces was also carried out by atomic force microscopy (AFM) in contact mode. The AFM images of the nylon monolayers showed the formation of grafted polymer brushes or nanoclusters on the surfaces.
Furthermore, the prepared surface of the silica gel was characterized by application in chromatographic analysis using the modified silica gel particles as a stationary phase. This stationary phase was stable and successfully employed for the separation of o-, m-, and p-nitroanisoles using cyclohexane or its mixture with dioxane as a mobile phase
|
Research Products
(57 results)
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
[Book] 基礎からの分析化学2007
Author(s)
熊丸, 尚宏(分担 藤原照文)
Total Pages
168
Publisher
朝倉書店
Description
「研究成果報告書概要(和文)」より
-
-
