Related Experiment Video
Updated: Sep 22, 2025

Anionic Polymerization of an Amphiphilic Copolymer for Preparation of Block Copolymer Micelles Stabilized by π-π Stacking Interactions
Published on: October 10, 2016
Systematic Synthesis of Block Copolymers Consisting of Topological Amphiphilic Segment Pairs from kyklo- and
Fumiya Hatakeyama1, Takuya Yamamoto1, Yasuyuki Tezuka1
1Department of Organic and Polymeric Materials, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo 152-8552, Japan.
Abstract:
A set of four types of block copolymers consisting of topological amphiphilic segment pairs was effectively synthesized via kyklo- (functionalized cyclic) and kentro- (center-functionalized linear) telechelic poly(ethylene oxide) (PEO) and poly(tetrahydrofuran) (poly(THF)). Accordingly, kyklo- and kentro-telechelic PEO with an ethynyl group was newly prepared from relevant linear PEO precursors with quinuclidinium end groups and an ethynyl-functionalized dicarboxylate counteranion by the electrostatic self-assembly and covalent fixation (ESA-CF) process. Similarly, kyklo- and kentro-telechelic poly(THF) with an azido group was obtained. The PEO and poly(THF) telechelics were subjected to click chemistry to systematically produce amphiphilic block copolymers with two symmetric topological forms, that is, an "8" shape (I·II) and a four-armed star shape (I·II), and two asymmetric topological forms, that is, twin-tailed tadpole shapes (I·II and I·II) with respect to the hydrophilic-hydrophobic plane.
More Related Videos
11:42Synthesis of Monodisperse Cylindrical Nanoparticles via Crystallization-driven Self-assembly of Biodegradable Block Copolymers
Published on: June 20, 2019
09:02Using Polystyrene-block-polyacrylic acid-coated Metal Nanoparticles as Monomers for Their Homo- and Co-polymerization
Published on: July 9, 2015
Related Concept Videos
Characteristics and Nomenclature of Copolymers
Step-Growth Polymerization: Overview
Many natural and synthetic polymers are produced by...
Characteristics and Nomenclature of Homopolymers
Olefin Metathesis Polymerization: Overview
Ruthenium-based Grubbs catalyst is the most commonly used catalyst for olefin metathesis polymerization. Grubbs catalyst consists...
Free-Radical Chain Reaction and Polymerization of Alkenes
Olefin Metathesis Polymerization: Ring-Opening Metathesis Polymerization (ROMP)