Nanoscale Control of the Surface Functionality of Polymeric 2D Materials

Oksana Suraeva, Anke Kaltbeitzel, Katharina Landfester, Frederik R. Wurm, Ingo Lieberwirth*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

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Abstract

Typically, 2D nanosheets have a homogeneous surface, making them a major challenge to structure. This study proposes a novel concept of 2D organic nanosheets with a heterogeneously functionalized surface. This work achieves this by consecutively crystallizing two precisely synthesized polymers with different functional groups in the polymer backbone in a two-step process. First, the core platelet is formed and then the second polymer is crystallized around it. As a result, the central area of the platelets has a different surface functionality than the periphery. This concept offers two advantages: the resulting polymeric 2D platelets are stable in dispersion, which simplifies further processing and makes both crystal surfaces accessible for subsequent functionalization. Additionally, a wide variety of polymers can be used, making the process and the choice of surface functionalization very flexible.

Original languageEnglish
Article number2206454
JournalSmall
Volume19
Issue number25
DOIs
Publication statusPublished - 21 Jun 2023

Keywords

  • 2D organic nanosheets
  • defect engineering
  • polymer crystallization
  • precision polymers
  • surface functionalization

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