Functional dendritic macromolecules: Preparation and optical properties

Shiyoshi Yokoyama, Tatsuo Nakahama, Shinro Mashiko

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Repetitive coupling reactions of branched azobenzene derivatives resulted in dendritic macromolecules, or "wedges" and "dendrimers". These molecules were designed to incorporate aliphatic and polar units in order to prepare Langmuir-Blodgett (LB) films. Atomic force microscopy (AFM), absorption spectroscopy, and second harmonic generation (SHG) measurements revealed structural properties of the LB films in terms of size, aggregation, and orientation, AFM measurements revealed that growth of the branches increased as a function of the generation. In absorption spectroscopy and SHG measurements, results showed that wedges had an unsymmetric orientation in the LB films, while dendrimers had a symmetrically functionalized structure.

Original languageEnglish
Pages (from-to)19-22
Number of pages4
JournalMolecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals
Volume294-95
Issue number0
Publication statusPublished - Dec 1 1997
Externally publishedYes

Fingerprint

Langmuir Blodgett films
Langmuir-Blodgett films
Macromolecules
macromolecules
Dendrimers
Optical properties
dendrimers
Harmonic generation
Absorption spectroscopy
optical properties
wedges
preparation
Atomic force microscopy
harmonic generations
absorption spectroscopy
atomic force microscopy
Azobenzene
Structural properties
Agglomeration
Derivatives

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

Cite this

Functional dendritic macromolecules : Preparation and optical properties. / Yokoyama, Shiyoshi; Nakahama, Tatsuo; Mashiko, Shinro.

In: Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals, Vol. 294-95, No. 0, 01.12.1997, p. 19-22.

Research output: Contribution to journalArticle

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