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Issue 29, 2017
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Cross-linkable multi-stimuli responsive hydrogel inks for direct-write 3D printing

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Abstract

Triple stimuli-responsive ABA triblock copolymer hydrogels composed of poly(allyl glycidyl ether)-stat-poly(alkyl glycidyl ether)-block-poly(ethylene glycol)-block-poly(allyl glycidyl ether)-stat-poly(alkyl glycidyl ether) were synthesized using controlled ring-opening polymerization of glycidyl ethers. These polymers form triple stimuli-responsive hydrogels that respond to temperature, pressure (shear-thinning), and UV light. The stimuli-responsive behaviors of the gels were dependent upon the composition and the molecular weight of the ‘A’ blocks of the triblock copolymers. The hydrogels were analyzed rheometrically to characterize their stimuli-responsive properties. The optimized compositions were 3D printed using a direct-write 3D printer to afford robust 3D objects. We anticipate these materials creating new opportunities in the biomedical and biotechnological fields, by enabling the simple and rapid fabrication of 3D hydrogels.

Graphical abstract: Cross-linkable multi-stimuli responsive hydrogel inks for direct-write 3D printing

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Publication details

The article was received on 19 May 2017, accepted on 15 Jun 2017 and first published on 19 Jun 2017


Article type: Paper
DOI: 10.1039/C7PY00831G
Citation: Polym. Chem., 2017,8, 4199-4206
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    Cross-linkable multi-stimuli responsive hydrogel inks for direct-write 3D printing

    D. G. Karis, R. J. Ono, M. Zhang, A. Vora, D. Storti, M. A. Ganter and A. Nelson, Polym. Chem., 2017, 8, 4199
    DOI: 10.1039/C7PY00831G

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