Functional dendritic macromolecules: Preparation and optical properties

Shiyoshi Yokoyama, Tatsuo Nakahama, Shinro Mashiko

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)


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
Publication statusPublished - 1997
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics


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