Polymerizable Oxime Esters: An Efficient Photoinitiator with Low Migration Ability for 3D Printing to Fabricate Luminescent Devices | Zendy

Qiu Wanwan | Zendy; Zhu Junzhe | Zendy; Dietliker Kurt | Zendy; Li Zhiquan | Zendy

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Polymerizable Oxime Esters: An Efficient Photoinitiator with Low Migration Ability for 3D Printing to Fabricate Luminescent Devices

Author(s) -

Qiu Wanwan,

Zhu Junzhe,

Dietliker Kurt,

Li Zhiquan

Publication year - 2020

Publication title -

chemphotochem

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.13

H-Index - 18

ISSN - 2367-0932

DOI - 10.1002/cptc.202000146

Subject(s) - photopolymer , photoinitiator , acrylate , materials science , moiety , oxime , visible spectrum , polymerization , photochemistry , blue light , polymer chemistry , optoelectronics , chemistry , polymer , copolymer , composite material , organic chemistry , monomer

The development of novel visible light photoinitiators (PIs) with low mobility for 3D printing will open up new applications for photopolymerization. In this work, a polymerizable visible light PI DCCA containing an oxime acryloyl ester structure was designed and synthesized. Its linear absorption has a maximum in the visible region (400–480 nm), overlapping well with the emission spectra of conventional blue light sources, and it can effectively induce acrylate polymerization under irradiation with a 450 nm LED lamp. In addition, migration of DCCA in the 3D printed samples is very low compared with DCCB, which has a similar structure but a phenyl moiety instead of the copolymerizable acrylate as the oxime ester group. The utility of DCCA in 3D printing was demonstrated by printing a 3D object with challenging geometric features with high resolution and accuracy.

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