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  1. Home
  3. 3d-printable Nanoporous Thermosets Via Disulfide-based Polymerization-induced Microphase Separation.
  1. Home
  3. 3d-printable Nanoporous Thermosets Via Disulfide-based Polymerization-induced Microphase Separation.

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3D-Printable Nanoporous Thermosets via Disulfide-Based Polymerization-Induced Microphase Separation.

Xueheng Dai1, Kenny Lee1,2, Yuan Xiu1

  • 1Cluster for Advanced Macromolecular Design (CAMD) and Australian Centre for Nanomedicine (ACN), School of Chemical Engineering, University of New South Wales, Sydney, NSW, Australia.

Angewandte Chemie (International Ed. in English)
|June 13, 2026

View abstract on PubMed

Summary
This summary is machine-generated.

Chemically degradable macroinitiators enable tunable nanoporous polymer networks via polymerization-induced microphase separation (PIMS). This advance allows for 3D printing of complex hierarchical structures with nanoscale porosity for advanced manufacturing applications.

Keywords:
LCD 3D printingdynamic disulfidenanoporous materialpolymer degradationα‐lipoic acid

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Area of Science:

  • Materials Science
  • Polymer Chemistry
  • Nanotechnology

Background:

  • Interconnected nanoporous polymer networks are crucial for applications requiring rapid mass transport.
  • Current fabrication methods using polymerization-induced microphase separation (PIMS) have limitations in polarity, formulation compatibility, and additive manufacturing.
  • Existing methods struggle to create tunable, hierarchical structures for advanced applications.

Purpose of the Study:

  • To overcome limitations in PIMS fabrication of nanoporous polymer networks.
  • To develop a PIMS strategy using tunable and degradable macroinitiators.
  • To enable the 3D printing of complex hierarchical architectures with controlled nanoscale porosity.

Main Methods:

  • Synthesis of chemically degradable macroinitiators (macroCTAs) via reversible addition-fragmentation chain-transfer copolymerization.
  • Tuning macroCTA hydrophilicity by copolymerizing lipoic acid derivatives with acrylates.
  • Preparation of microphase-separated materials and subsequent conversion to nanoporous thermosets via disulfide cleavage.
  • Utilizing photocurable resins compatible with liquid-crystal display 3D printing.

    • Main Results:

    • Successful synthesis of a diverse library of tunable, degradable macroCTAs.
    • Preparation of microphase-separated materials across a wide range of chemistries.
    • Fabrication of nanoporous thermosets with controlled pore sizes (24-42 nm) via selective disulfide cleavage.
    • Demonstration of 3D printing complex hierarchical architectures with embedded nanoscale porosity using liquid-crystal display technology.

    Conclusions:

    • Tunable and degradable macroCTAs provide a versatile platform for PIMS.
    • This strategy bridges 3D-printable form factors with programmable nanoscale structure.
    • The developed method offers a general route to hierarchically structured materials for separations, catalysis, and advanced manufacturing.