Cold, warm, and hot programming of shape memory polymers

G Li, A Wang - Journal of Polymer Science Part B: Polymer …, 2016 - Wiley Online Library
In this article, programming is classified as hot, warm, and cold, based on the temperature
zone within which the programming is conducted. The strain and stress locking and …

Recent progress in shape memory polymer composites: methods, properties, applications and prospects

M Lei, Z Chen, H Lu, K Yu - Nanotechnology reviews, 2019 - degruyter.com
Shape memory polymers (SMPs) can be programmed to a temporary shape, and then
recover its original shape by applying environmental stimuli when needed. To expands the …

Cold-programmed shape-morphing structures based on grayscale digital light processing 4D printing

L Yue, X Sun, L Yu, M Li, SM Montgomery… - Nature …, 2023 - nature.com
Shape-morphing structures that can reconfigure their shape to adapt to diverse tasks are
highly desirable for intelligent machines in many interdisciplinary fields. Shape memory …

Grayscale digital light processing 3D printing for highly functionally graded materials

X Kuang, J Wu, K Chen, Z Zhao, Z Ding, F Hu… - Science …, 2019 - science.org
Three-dimensional (3D) printing or additive manufacturing, as a revolutionary technology for
future advanced manufacturing, usually prints parts with poor control of complex gradients …

3D printed reversible shape changing components with stimuli responsive materials

Y Mao, Z Ding, C Yuan, S Ai, M Isakov, J Wu, T Wang… - Scientific reports, 2016 - nature.com
The creation of reversibly-actuating components that alter their shapes in a controllable
manner in response to environmental stimuli is a grand challenge in active materials …

Evolution of material properties during free radical photopolymerization

J Wu, Z Zhao, CM Hamel, X Mu, X Kuang, Z Guo… - Journal of the …, 2018 - Elsevier
Photopolymerization is a widely used polymerization method in many engineering
applications such as coating, dental restoration, and 3D printing. It is a complex chemical …

Modeling the thermo-mechanical behavior and constrained recovery performance of cold-programmed amorphous shape-memory polymers

L Dai, C Tian, R Xiao - International Journal of Plasticity, 2020 - Elsevier
The low recovery stress has limited utilizing shape-memory polymers (SMPs) as actuators.
In this work, we demonstrate that the resultant recovery stress of amorphous SMPs can be …

On-Demand Aligned DNA Hydrogel Via Light Scanning

J Kim, YS Choi, G Park, M Kim, JS Myung, WJ Choi… - ACS …, 2023 - ACS Publications
DNA is an anisotropic, water-attracting, and biocompatible material, an ideal building block
for hydrogel. The alignment of the anisotropic DNA chains is essential to maximize hydrogel …

A comprehensive review on thermomechanical constitutive models for shape memory polymers

E Yarali, A Taheri, M Baghani - Journal of Intelligent Material …, 2020 - journals.sagepub.com
Shape memory polymers are a class of smart materials, which are capable of fixing their
deformed shapes, and can return to their original shape in reaction to external stimulus such …

Thermomechanical constitutive modeling of fiber reinforced shape memory polymer composites based on thermodynamics with internal state variables

J Gu, J Leng, H Sun, H Zeng, Z Cai - Mechanics of Materials, 2019 - Elsevier
Shape memory polymer composites (SMPCs) can be used to improve the mechanical
properties of the shape memory polymers (SMPs). They also have the potential to enhance …