Facile fabrication of mechanochromic-responsive colloidal crystal films

Duan, Lingling; You, Bo; Wu, Limin; Chen, Min

doi:10.1016/j.jcis.2010.09.044

Cited by 29 publications

(26 citation statements)

References 36 publications

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“…More recently, photonic gels have been used to deliver tunable photonic properties. [59,60] Macromol. Rapid Commun.…”

Section: Recent Advances For Photonic Opal Films and Novel Crosslinkimentioning

confidence: 99%

Functional Polymer Opals and Porous Materials by Shear‐Induced Assembly of Tailor‐Made Particles

Gallei

2017

Macromol. Rapid Commun.

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Photonic band-gap materials attract enormous attention as potential candidates for a steadily increasing variety of applications. Based on the preparation of easily scalable monodisperse colloids, such optically attractive photonic materials can be prepared by an inexpensive and convenient bottom-up process. Artificial polymer opals can be prepared by shear-induced assembly of core/shell particles, yielding reversibly stretch-tunable materials with intriguing structural colors. This feature article highlights recent developments of core/shell particle design and shear-induced opal formation with focus on the combination of hard and soft materials as well as crosslinking strategies. Structure formation of opal materials relies on both the tailored core/shell architecture and the parameters for polymer processing. The emphasis of this feature article is on elucidating the particle design and incorporation of addressable moieties, i.e., stimuli-responsive polymers as well as elaborated crosslinking strategies for the preparation of smart (inverse) opal films, inorganic/organic opals, and ceramic precursors by shear-induced ordering.

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“…More recently, photonic gels have been used to deliver tunable photonic properties. [59,60] Macromol. Rapid Commun.…”

Section: Recent Advances For Photonic Opal Films and Novel Crosslinkimentioning

confidence: 99%

Functional Polymer Opals and Porous Materials by Shear‐Induced Assembly of Tailor‐Made Particles

Gallei

2017

Macromol. Rapid Commun.

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“…Correlated literature indicated that the mechanical properties of the colloid PBG film were significantly affected by the T g of the component particles. However, most of the reported colloid PBG films were constructed with core–shell spheres, or single category spheres, and only a few studies by Wu's group discussed blend PBG films . Thus, to investigate the relationship between the sphere T g and film properties, polymer spheres with different T g were synthesized herein, the formulations and correlated analysis data of which are shown in Table .…”

Section: Resultsmentioning

confidence: 99%

“…However, most of the reported colloid PBG films were constructed with core-shell spheres, or single category spheres, and only a few studies by Wu's group discussed blend PBG films. 29,[51][52][53] Thus, to investigate the relationship between the sphere T g and film properties, polymer spheres with different T g were synthesized herein, the formulations and correlated analysis data of which are shown in Table I. The softness of the polymer spheres is dependent on the monomer feed-in proportion of St, BMA, and BA.…”

Section: Fabrication and Structure Of Pbg Filmmentioning

confidence: 99%

Rapid fabrication of organic/organic photonic bandgap films with tuneable mechanical properties using blended polymer spheres

Kuo

Chen

Lin

et al. 2013

J of Applied Polymer Sci

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In this study, the photonic bandgap (PBG) film with tunable mechanical properties and photonic stop band was prepared by a simple and feasible approach. Colloid polymer spheres with a relatively large diameter (approximate D n of 200 nm) and different glass transition temperatures (T g ) were blended with small polystyrene (PS) latex (D n 5 20 nm) and were subsequently casted on a substrate for 3 h at 50 C for self-assembly of the PBG film. The monodispersed polymer spheres were synthesized by soap-free emulsion polymerization in the boiling state. The T g values of the spheres were predetermined based on the Fox equation, and designed to fall in the region of 234 C to 112 C. Small PS could also be synthesized by this approach using the comonomer, sodium p-styrenesulfonate (NaSS), to ensure the small diameter. The long-range ordered structure constructed by embedding the small PS in the PBG film was indirectly confirmed on the basis of SEM analysis, from which the monochromatic film color was determined based on Bragg's diffraction law. Tunable film color was achieved by adjusting the diameter of the spheres, as evaluated using UV-Vis. Tunable mechanical properties of the PBG film were also achieved by varying the T g of the spheres or the filling ratio of small PS. Based on these approaches, the ultimate tensile strength could be tuned in the region between 0.39 to 4.7 Mpa, and the relative strain could be varied from 1236% to 16%, illustrative of the excellent deformability of the film. Furthermore, by variation of these two parameters, the film properties could be changed from typical elastomer behavior to brittle plastic polymer type behavior, greatly extending the prospective application fields.

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“…Another method is at wo-step infiltration process that includes assembling hard microspheres and filling the space with elastic polymers, followed by swelling to enhance the mechanochromic capability (Figure 2c). [25] For instance, PS colloidal crystals are embedded into aP DMS matrix,a nd the swollen film exhibits ar eversible color change between red and green under stretching and releasing. [26] An inverse opal structure can be formed by removing the microspheres (Figure 2d).…”

Section: Mechanochromic Photonic Crystalsmentioning

confidence: 99%

Mechanochromic Fibers with Structural Color

Sun

Peng

2015

ChemPhysChem

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Responsive photonic crystals have been widely developed to realize tunable structural colors by manipulating the flow of light. Among them, mechanochromic photonic crystals attract increasing attention due to the easy operation, high safety and broad applications. Recently, mechanochromic photonic crystal fibers were proposed to satisfy the booming wearable smart textile market. In this Concept, the fundamental mechanism, fabrication, and recent progress on mechanochromic photonic crystals, especially in fiber shape, are summarized to represent a new direction in sensing and displaying.

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Facile fabrication of mechanochromic-responsive colloidal crystal films

Cited by 29 publications

References 36 publications

Functional Polymer Opals and Porous Materials by Shear‐Induced Assembly of Tailor‐Made Particles

Functional Polymer Opals and Porous Materials by Shear‐Induced Assembly of Tailor‐Made Particles

Rapid fabrication of organic/organic photonic bandgap films with tuneable mechanical properties using blended polymer spheres

Mechanochromic Fibers with Structural Color

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