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Related Experiment Video

Updated: May 8, 2026

3D Printing and In Situ Surface Modification via Type I Photoinitiated Reversible Addition-Fragmentation Chain Transfer Polymerization
07:28

3D Printing and In Situ Surface Modification via Type I Photoinitiated Reversible Addition-Fragmentation Chain Transfer Polymerization

Published on: February 18, 2022

i3DP, a robust 3D printing approach enabling genetic post-printing surface modification.

Xiaolong Wang1, Xiaobing Cai, Qiuquan Guo

  • 1State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China.

Chemical Communications (Cambridge, England)
|September 5, 2013
PubMed
Summary

A new 3D printing method, initiator integrated 3D printing (i3DP), allows for functional materials with customizable surfaces. This technique enables complex structures to be modified after printing, opening up diverse applications.

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Area of Science:

  • Materials Science
  • Polymer Chemistry
  • Additive Manufacturing

Background:

  • Traditional 3D printing often results in materials with limited surface functionality.
  • Post-printing surface modification can be challenging, especially for complex geometries.

Purpose of the Study:

  • To develop a novel 3D printing technique enabling facile surface modification of printed materials.
  • To create functional structural materials with tunable surface properties.

Main Methods:

  • Incorporation of a vinyl-terminated initiator into UV-curable resin.
  • Utilizing 3D printing technology to fabricate complex architectures.
  • Employing surface-initiated Atom Transfer Radical Polymerization (ATRP) for post-printing modification.

Main Results:

  • Successfully developed initiator integrated 3D printing (i3DP).
  • Demonstrated the ability to perform surface-initiated modification on complex 3D printed structures.
  • Achieved functionalization for various applications, including creating a sieve capable of holding water.

Conclusions:

  • i3DP is a feasible method for creating 3D printed functional materials.
  • The technique allows for versatile and precise surface modifications on complex architectures.
  • This approach broadens the applicability of 3D printing in creating advanced functional materials.