Mix-and-Match Assembly of Block Copolymer Blends in Solution

Arah Cho, Yunju La, Sungeun Jeoung, Hoi Ri Moon, Ja Hyoung Ryu, Tae Joo Shin, Kyoung Taek Kim

Research output: Contribution to journalArticlepeer-review

38 Scopus citations

Abstract

The chemical structure of a block copolymer (BCP) dictates the size, shape, and function of its self-assembled structure in solution. This direct correspondence demands precision synthesis of a specific BCP with optimized structural parameters to obtain the desired nanostructures with structural and functional complexity by solution self-assembly. Here we show that the binary blends of BCPs self-assemble into the desired nanostructure in solution by adjusting the composition of the blend. By modifying the structural parameters of a binary BCP blend through control of the composition, two BCPs sharing the repeating units in both polymer blocks coassemble into the desired structures, which range from spherical micelles to inverse cubic and hexagonal mesophases. These BCP blends not only allow the direct creation of complex periodic mesoporous structures of the desired periodicity and pore size but also provide nanostructures of unprecedented morphology by simple solution self-assembly without relying on the synthesis of correspondingly designed BCPs.

Original languageEnglish
Pages (from-to)3234-3243
Number of pages10
JournalMacromolecules
Volume50
Issue number8
DOIs
StatePublished - 25 Apr 2017

Bibliographical note

Funding Information:
This work was supported by National Science Foundation (NSF) of Korea (2016R1A2B3015089) and Seoul National University (SNU) for the support by Creative-Pioneering Researchers Program

Publisher Copyright:
© 2017 American Chemical Society.

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