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Updated: Jul 6, 2026

Preparation and Friction Force Microscopy Measurements of Immiscible, Opposing Polymer Brushes
Published on: December 24, 2014
Architecture of brush-on-brush copolymers by photoinduced ATRP approach
Koji Ishizu1, Takuya Murakami, Satoshi Takano
1Department of Organic Materials and Macromolecules, International Research Center of Macromolecular Science, Tokyo Institute of Technology, 2-12-1-H-133, Ookayama, Meguro-ku, Tokyo 152-8552, Japan. kishizu@polymer.titech.ac.jp
Abstract:
We established a preparation method of brush-on-brush copolymers by grafting from photoinduced ATRP of multifunctional polystyrene having N,N-diethyldithiocarbamate (DC) pendant groups with stearyl methacrylate (STM). We studied the solution properties of brush-on-brush copolymers from the view point of crowding effect of PSTM brush side chains. It was speculated from angular dependence on dynamic light scattering (DLS) that the brush-on-brush copolymer (BB1:PSTM brushes were grafted at regular intervals of 1/4 styrene units on the backbone) with large aspect ratio took a geometrical anisotropic conformation such as a cylinder due to crowding of brush side chains. In fact, transmission electron microscopy (TEM) photograph of such brush-on-brush showed a rigid rod-like morphology.
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