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Updated: Jan 25, 2026

3D Printing and In Situ Surface Modification via Type I Photoinitiated Reversible Addition-Fragmentation Chain Transfer Polymerization
Published on: February 18, 2022
A two-photon active chevron-shaped type I photoinitiator designed for 3D stereolithography
Ruchun Zhou1, Jean-Pierre Malval, Ming Jin
1School of Materials Science & Engineering, Tongji University, 4800 Caoan Road, Shanghai, 201804, P. R. China. mingjin@tongji.edu.cn.
Abstract:
We present herein the properties of a highly reactive type I photoinitiator with significant 2PA cross-sections (δ720nm ∼ 90 GM). We demonstrate that this new type of photocleavable system exhibits very efficient two-photon polymerization abilities with performances amplified by more than two orders of magnitude with regards to those of a commercially available type I photoinitiator (Lucirin TPO-L) which is extensively employed for multiphoton 3D stereolithography.
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