Issue 12, 2019

Vat photopolymerization of charged monomers: 3D printing with supramolecular interactions

Abstract

Additive manufacturing enables the creation of novel structures and geometries previously unattainable through traditional processing techniques. In particular, vat photopolymerization provides unprecedented resolution through the tailored delivery of light with photo-crosslinkable or photo-polymerizable materials. Traditionally, chemical crosslinks generate a permanent network, which exhibits swelling but not dissolution. In this work, photopolymerization of photo-reactive monomers with acrylate, acrylamide, and vinyl polymerizable sites enabled the formation of water-soluble 3D printed parts using vat photopolymerization. A library of monomers with varied ionic and hydrogen bonding sites provided photopolymerized films with tensile properties approaching 1200% elongation at break and 0.47 MPa stress at 100% elongation. The rate of polymerization and the subsequent mechanical properties revealed a dependence on the type of supramolecular interactions and functionality on the resulting hydrogel. The diverse functionality of the monomers enabled aqueous dissolution times ranging from 27 to 41 min. Vat photopolymerization of a trimethylammonium ethyl acrylate chloride solution and with 30 wt% N-vinyl pyrrolidone provided 3D parts with fine structural resolution. This method of creating soluble, water-swollen structures through vat photopolymerization provides future research with a larger library of monomers for diverse applications including soluble support scaffolds.

Graphical abstract: Vat photopolymerization of charged monomers: 3D printing with supramolecular interactions

Supplementary files

Article information

Article type
Paper
Submitted
18 дек 2018
Accepted
31 яну 2019
First published
06 фев 2019

Polym. Chem., 2019,10, 1442-1451

Vat photopolymerization of charged monomers: 3D printing with supramolecular interactions

E. M. Wilts, A. M. Pekkanen, B. T. White, V. Meenakshisundaram, D. C. Aduba, C. B. Williams and T. E. Long, Polym. Chem., 2019, 10, 1442 DOI: 10.1039/C8PY01792A

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements