Issue 31, 2019
From the journal:

Polymer Chemistry

Synthesis of amphiphilic, Janus diblock hyperbranched copolyamides and their self-assembly in water†

Yoshihiro Ohta,a   Yuji Abe,a   Kenta Hoka,a   Eisuke Baba,a   Yu-Ping Lee, ORCID logo b   Chi-An Dai ORCID logo b  and  Tsutomu Yokozawa ORCID logo *a  

* Corresponding authors

a Department of Materials and Life Chemistry, Kanagawa University, Rokkakubashi, Kanagawa-ku, Yokohama 221-8686, Japan
E-mail: yokozt01@kanagawa-u.ac.jp

b Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan

Abstract

An amphiphilic, Janus diblock hyperbranched copolyamide was synthesized by the condensation of hydroxyl and carboxyl groups at the focal point of hydrophilic and hydrophobic hyperbranched polyamides, respectively, in the presence of a condensation agent. The structure of the self-assembled Janus diblock hyperbranched copolyamide in water at 25 °C, observed by using a transmission electron microscope, consisted of spherical aggregates. As the temperature of the solution was increased, the morphology changed to cylindrical-like aggregates at 50 °C and to dendritic-like aggregates at 70 °C.

Graphical abstract: Synthesis of amphiphilic, Janus diblock hyperbranched copolyamides and their self-assembly in water

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Article information

DOI
https://doi.org/10.1039/C8PY01419A
Article type
Communication
Submitted
02 Oct 2018
Accepted
04 Jul 2019
First published
04 Jul 2019

Polym. Chem., 2019,10, 4246-4251

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Synthesis of amphiphilic, Janus diblock hyperbranched copolyamides and their self-assembly in water

Y. Ohta, Y. Abe, K. Hoka, E. Baba, Y. Lee, C. Dai and T. Yokozawa, Polym. Chem., 2019, 10, 4246 DOI: 10.1039/C8PY01419A

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