Direct-ink-write 3D printing of "living" polymer hydrogels via type I photoinitiated RAFT polymerization

被引：9
|
作者：
Imrie, Patrick [1 ,2 ]
Diegel, Olaf [3 ,4 ,5 ]
Jin, Jianyong [1 ,2 ]
机构：
[1] Univ Auckland, Sch Chem Sci, Auckland 1010, New Zealand
[2] Dodd Walls Ctr Quantum & Photon Technol, Dunedin 9054, New Zealand
[3] Univ Auckland, Sch Mech Engn, Auckland 1010, New Zealand
[4] Univ Auckland, Creat Design & Addit Mfg Lab, Auckland 1010, New Zealand
[5] Univ Auckland, MedTech CoRE, Auckland 1010, New Zealand
来源：
POLYMER | 2023年 / 276卷
关键词：
Direct ink write; Photoinitiator; Reversible addition fragmentation chain; transfer; Living polymerization; Multimaterial; OXYGEN-TOLERANT; TRANSFORMATION;
D O I：
10.1016/j.polymer.2023.125944
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
"Living" hydrogel photoinks based on the type I photoinitiated reversible addition/fragmentation chain transfer (RAFT) polymerization mechanism were formulated for use in a direct-ink-write (DIW) 3D printer. "Living" hydrogel cubes were 3D printed from these photoinks which could undergo post-production network modification through the insertion of new monomers into the polymer matrix. The multiple extruders of the DIW 3D printer were also exploited to 3D print multimaterial hydrogel objects. The "living" material sections swelled more extensively, leading to a swell-induced bending effect in the macroscopic multimaterial object.
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页数：6
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