2024 Photomechanics of light-activated polymers

Photomechanics of light-activated polymers

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August undefined, 2024

WebFor effective muscle-like actuation, materials with stratified structures and high molecular orders are necessary. Liquid-crystalline elastomers (LCEs) are superior soft materials that … WebSep 13, 2024 · This paper studies a novel method to fabricate three-dimensional (3D) structure from 2D thermo-responsive shape memory polymer (SMP)/elastomer bilayer …

Kevin N. Long

WebMar 1, 2024 · Photomechanics of light-activated polymers. K. Long, T. F. Scott, H. Qi, C. Bowman, M. Dunn; Materials Science. 2009; ... The effects of oxygen on both stress relaxation and bending actuation are studied in light activated covalent adaptable networks formed by radical polymerization reactions, which have potential applications as novel ... WebPhoto-origami uses the dynamic control of the molecular architecture of a polymer by a combination of mechanical and non-contact optical stimuli to design and program spatially and temporally variable mechanical and optical fields into a material. The fields are essentially actuators, embedded in the material at molecular resolution, designed to … town square mall richards bay

Photomechanics of light-activated shape memory polymers

WebApr 1, 2015 · The features shared by light-activated polymers involve light interacting with the material, which triggers photochemical reactions that alter the structure of the crosslinked polymer network. WebJul 1, 2014 · Photomechanics of light-activated polymers. J Mech Phys Solids (2009) Y.C. Chen et al. A constitutive theory for shape memory polymers. Part I. Large deformations ... Current study provides a comprehensive review of the advances in experimental and numerical investigations on light activated shape memory polymers and composites. … WebApr 28, 2024 · Novel photoinitiating systems operating in UV-Vis light for radical polymerization of acrylates are described, composed of squaraine as a light absorber and various diphenyliodonium (Iod) salts as co-initiators. ... Photomechanics of light-activated polymers. K. Long, T. F. Scott, H. Qi, C. Bowman, M. Dunn; Materials Science. 2009; 142. … town square magic kingdom

Photo-Induced Creep of Network Polymers - TDL

WebThe features shared by light-activated polymers involve light interacting with the material, which triggers photochemical reactions that alter the structure of the crosslinked polymer network. Many such structural alterations result in an evolution of the polymer network, and subsequent macroscopic deformation. WebMay 9, 2016 · Recently, triple shape memory polymers (TSMPs) have been discovered; these materials can be programmed to switch between three distinct shapes. Previously, we introduced a model to describe the mechanical behavior of TSMPs; however, the earlier study was limited in scope to simple cases of uniaxial deformation. In this work, we build … town square mall binghamtonWebJul 1, 2009 · Polymers containing cinnamic groups can be deformed and fixed into pre-determined shapes—such as elongated films and tubes, arches or spirals—by ultraviolet … town square management

"WebPhotomechanical shape memory polymers are an exciting class of materials that are able to store a temporary shape and recover their original shape when stimulated by light. In … " - Photomechanics of light-activated polymers

Photomechanics of light-activated polymers

Mechanics of light-activated self-healing polymer networks

WebMar 1, 2024 · The self-healing process is considered as a coupled behavior that polymer chains diffuse across the interface and re-form the dynamic bonds assisted by the free radicals. We theoretically relate the light property to the interfacial self-healing strength of the polymers. We predict that the interfacial self-healing strength of the polymer ... WebOct 1, 2009 · Photomechanics of blanket and patterned liquid crystal elastomer films @article{Dunn2009PhotomechanicsOB, title={Photomechanics of blanket and patterned liquid crystal elastomer films}, author={Martin L. Dunn and Kurt Maute}, journal={Mechanics of Materials}, year={2009}, volume={41}, pages={1083-1089} } M. Dunn, K. Maute

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WebIn this paper, we model the photomechanics of light-activated, network rearranging polymers subjected to simultaneous deformation and network evolution. We then apply the model to the case of photo-induced creep behavior where a constant force is applied to the material during light irradiation. Note that photo-induced creep behavior yields WebA photopolymer or light-activated resin is a polymer that changes its properties when exposed to light, often in the ultraviolet or visible region of the electromagnetic spectrum. These changes are often manifested structurally, for example hardening of the material occurs as a result of cross-linking when exposed to light. An example is shown below …

WebNov 14, 2013 · Now researchers have combined the photo-responsive properties of azobenzene-functionalized polymers, which undergo light-induced isomerization with … WebJan 1, 2008 · Photomechanical shape memory polymers are an exciting class of materials that are able to store a temporary shape and recover their original shape when stimulated …

WebProfessor Scott and the Scott Polymer Dojo gratefully acknowledge their funding sources that makes this research possible. Peer-reviewed Publications. 44. D. Ahn, ... C.N. Bowman, and M.L. Dunn, “Photomechanics of light-activated polymers,” Journal of Mechanics and Physics of Solids 57 (7), 1103-1121 (2009). DOI: 10.1016/j.jmps.2009.03.003. 16. WebIn this paper, we develop a three-dimensional finite-deformation modeling framework to describe the photomechanical response of light-activated polymer systems. This …

Webthe development of a generalized modeling framework to describe the photomechanics. The features shared by light-activated polymers involve light interacting with the material, …

WebPhotomechanics of light-activated polymers. KN Long, TF Scott, HJ Qi, CN Bowman, ML Dunn. Journal of the Mechanics and Physics of Solids 57 (7), 1103-1121, 2009. 161: 2009: Photopolymerized thiol-ene systems as shape memory polymers. ... Journal of Applied Polymer Science 93 (3), 1348-1359, 2004. 68: town square mall theater vestal nyWebApr 3, 2013 · Shape memory polymers (SMPs) are a class of smart materials that can fix a temporary shape and recover to their permanent (original) shape in response to an environmental stimulus such as heat, electricity, or irradiation, among others. ... Long K et al. 2009 Photomechanics of light-activated polymers J. Mech. Phys. Solids 57 1103–21. town square manor apartments anchorageWebJun 22, 2024 · Lendlein A, Jiang H, Jünger O and Langer R 2005 Light-induced shape-memory polymers Nature 434 879–82. Crossref. Long K N, Scott T F, Jerry Q H, Bowman C N and Dunn M L 2009 Photomechanics of light-activated polymers J. Mech. Phys. Solids 57 1103–21. Crossref. Buckley P R, McKinley G H, Wilson T S, Small W IV, ... town square mall vestal nyWebUntitled - Free download as PDF File (.pdf), Text File (.txt) or read online for free. town square map dndWebSep 16, 2024 · Select polymers can be produced via a process called free radical polymerization, in which a monomer solution is exposed to ultraviolet (UV) light. The high … town square manor apartments town square manorWebJul 13, 2009 · Photomechanical shape memory polymers are an exciting class of materials that are able to store a temporary shape and recover their original shape when stimulated … town square marcus