Photomechanics of light-activated polymers

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August undefined, 2024

WebJul 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 by light. In this work we develop a model to simulate the photomechanical behavior of light-activated shape memory polymers. To the best of our knowledge this is the first … A 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 depicting a mixture of monomers,

‪Timothy F. Scott‬ - ‪Google Scholar‬

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 … toychamp halloween

Kevin N. Long

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. … 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, … toychamp hazerswoude

Photomechanics of light-activated polymers

WebSep 11, 2003 · Polymer solutions and solids that contain light-sensitive molecules can undergo photo-contraction, whereby light energy is converted into mechanical energy … 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 … toychamp helmond telefoonnummerWebJul 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 … toychamp helmond

"WebSep 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 … " - Photomechanics of light-activated polymers

Photomechanics of light-activated polymers

Timothy SCOTT University of Michigan, Ann Arbor U-M

WebFeb 1, 2024 · Several photomechanical models have been built up to study the photomechanical behavior of light-activated polymer systems [47], [48]. The surface deformation of nematic elastomers, containing azobenzene chromophores, under the spot as well as striped illumination has been simulated in [49], [50]. ... Photomechanics of light … 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 … WebThe objectives of this dissertation research are to study the photomechanics of polymers including light activated polymer and two stage reactive polymer, and explore their …

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 … WebFor effective muscle-like actuation, materials with stratified structures and high molecular orders are necessary. Liquid-crystalline elastomers (LCEs) are superior soft materials that …

WebLight-activated polymers are an exciting class of materials that respond mechanically when irradiated at particular wavelengths. Recent demonstrations include two novel polymers developed by Scott ... WebJul 1, 2009 · In this paper, we develop a three-dimensional finite-deformation modeling framework to describe the photomechanical response of light-activated polymer …

WebIn this paper, we develop a three-dimensional finite-deformation modeling framework to describe the photomechanical response of light-activated polymer systems. This …

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. toychamp lego actieShape-memory polymers are an emerging class of polymers with applications … Recently, light-activated polymers have been developed that exhibit large … The variation of the critical free volumes for propagation and termination, using the … In Section 3, we introduce spatial- and ensemble-averages in order to define the … Calculations were carried out with T ∗ /τ T =0.25 and T ∗∗ /τ T =0.75. Fig. 6 shows … 1.. IntroductionThermally activated shape memory polymers (SMP) are an … toychamp kiel telefoonnummerWebBrazel, C. S. [2009] “ Magnetothermally-responsive nanomaterials: Combining magnetic nanostructures and thermally-sensitive polymers for triggered drug release,” Pharmaceutical Research 26(3), 644–656. Crossref, ISI, Google Scholar toychamp kortingscode