Heterogeneous Growth of 3D Printed Polymer Network for Multi‐Material Integration DOI Open Access

Hongfeng Mu,

Ziyin Wang,

Xiaona Xu

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 20, 2024

Abstract 3D printing has been highly pursued owing to its effortless fabrication of custom‐defined geometries, yet the integration multi‐material with diverse properties in one printed object remains challenging. In this work, a digital light 3D‐printed polymer network that is capable heterogeneous growth seamlessly integrate designed. This accomplished through orthogonal photochemistry design, where visible utilized initiate radical polymerization acrylates for printing. Inspired by plants’ phototropism due uneven auxin distribution, UV employed induce spatiotemporal catalyst generation promoting growth. process, it found UV‐generated effectively facilitates hydrolysis ketals produce hydroxyls, which can further serve as “growing sites” ring‐opening polycaprolactone. enables precise manipulation both shape and mechanical objects. The distinctive mechanism production components using single resin.

Language: Английский

Multi-color dual wavelength vat photopolymerization 3D printing via spatially controlled acidity DOI Creative Commons
Kyle C. H. Chin,

Grant Ovsepyan,

Andrew J. Boydston

et al.

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: May 8, 2024

Abstract Dual wavelength vat photopolymerization (DW-VP) has emerged as a powerful approach to create multimaterial objects. However, only limited range of properties have been showcased. In this work, we report the 3D printing (3DP) multi-color objects from single resin using DW-VP. This was accomplished by concurrently curing with visible light and modulating local color 365-nm ultraviolet (UV) light. The key advance use photoacid generator (PAG) in combination pH responsive dyes 3DP resins. specific is dictated extent reaction, or acidity our case, controlled dosage pattern UV applied. Multi-color object formation implemented two-step processes involving first set structure, followed exposure, well that leveraged DW-VP broad vibrant colors patterns.

Language: Английский

Citations

7
Non-monotonic Information and Shape Evolution of Polymers Enabled by Spatially Programmed Crystallization and Melting DOI Creative Commons

Xing Zhang,

Yichen Zhou,

Mengzhe Han

et al.

Chem & Bio Engineering, Journal Year: 2024, Volume and Issue: 1(9), P. 790 - 797

Published: May 24, 2024

Stimuli-responsive polymer materials are a kind of intelligent material which can sense and respond to external stimuli. However, most current stimuli-responsive polymers only exhibit monotonic response single constant stimulus but cannot achieve dynamic evolution. Herein, we report method non-monotonic under by regionalizing the crystallization melting kinetics in semicrystalline polymers. Based on influence cross-linking polymers, employ light spatially regulate degree The prepared realize self-evolved encryption pattern information shape evolution without complex multiple By combination evolution, coupled be achieved. This approach empowers with ability evolve stimulus, offering insights into functional design materials.

Language: Английский

Citations

2
Heterogeneous Growth of 3D Printed Polymer Network for Multi‐Material Integration DOI Open Access

Hongfeng Mu,

Ziyin Wang,

Xiaona Xu

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 20, 2024

Abstract 3D printing has been highly pursued owing to its effortless fabrication of custom‐defined geometries, yet the integration multi‐material with diverse properties in one printed object remains challenging. In this work, a digital light 3D‐printed polymer network that is capable heterogeneous growth seamlessly integrate designed. This accomplished through orthogonal photochemistry design, where visible utilized initiate radical polymerization acrylates for printing. Inspired by plants’ phototropism due uneven auxin distribution, UV employed induce spatiotemporal catalyst generation promoting growth. process, it found UV‐generated effectively facilitates hydrolysis ketals produce hydroxyls, which can further serve as “growing sites” ring‐opening polycaprolactone. enables precise manipulation both shape and mechanical objects. The distinctive mechanism production components using single resin.

Language: Английский

Citations

1