2011 Fiscal Year Final Research Report
Construction of Supramolecular Helical Polymers and Highly Oriented Supramolecular Organizations Using Unique Host-Guest Motifs
| Project/Area Number |
21350066
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (B)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
Polymer chemistry
|
|---|
| Research Institution | Hiroshima University |
|---|
Principal Investigator |
HAINO Takeharu 広島大学, 大学院・理学研究科, 教授 (80253053)
|
|---|
| Project Period (FY) |
2009 – 2011
|
| Keywords | 超分子ポリマー / らせん / 刺激応答性 / ポルフィリン / フラーレン / 超分子架橋 / 分子認識 |
|---|
| Research Abstract |
A heteroditopic monomer bearing a bisporphyrin cleft and trinitrofluorenone polymerized through a head-to-tail host-guest interaction. Although each of the monomers are connected by non-covalent interactions, the supramolecular polymer chains reptated like a conventional polymer in semi-dilution regime. A tetrakisporphyrin monomer assembled to form supramolecular polymers that were dissociated by competitive guest complexation in solution. Helical morphologies were produced via the supramolecular polymerization in the solid state.[ 60] Fullerene-grafted polyphenylacetylenes were cross-linked by the supramolecular connection generated via the molecular recognition of the[ 60] fullerene moiety and a homoditopic calix[ 5] arene host. The cross-linking increased the molecular weight of the polymer in solution. Nanoparticle-like morphology was obtained from the polymer solution, but the cross-linked polymer generated highly oriented nanostructures in which each of the polymer chains were aligned in a parallel fashion
|
