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  1. Article ; Online: Multicolor photonic patterns through an intensity-controlled single photopolymerization step.

    Foelen, Yari / van Gils, Nieké J M / Claessen, Mart D T / Schenning, Albertus P H J

    Chemical communications (Cambridge, England)

    2022  Volume 58, Issue 77, Page(s) 10833–10836

    Abstract: The UV intensity during photopolymerization allows control over the structural color of a cholesteric liquid crystal (CLC) polymer photonic coating in a single step. Simultaneously, the glass transition temperature ( ...

    Abstract The UV intensity during photopolymerization allows control over the structural color of a cholesteric liquid crystal (CLC) polymer photonic coating in a single step. Simultaneously, the glass transition temperature (
    Language English
    Publishing date 2022-09-27
    Publishing country England
    Document type Journal Article
    ZDB-ID 1472881-3
    ISSN 1364-548X ; 1359-7345 ; 0009-241X
    ISSN (online) 1364-548X
    ISSN 1359-7345 ; 0009-241X
    DOI 10.1039/d2cc04050f
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: One-Pot Synthesis of Melt-Processable Supramolecular Soft Actuators.

    Lugger, Sean J D / Mulder, Dirk J / Schenning, Albertus P H J

    Angewandte Chemie (International ed. in English)

    2021  Volume 61, Issue 6, Page(s) e202115166

    Abstract: The application of reprocessable and reprogrammable soft actuators is limited by the synthetic strategies, 3D-shaping capabilities, and small deformations. In this work, melt-processable supramolecular soft actuators based on segmented copolymers ... ...

    Abstract The application of reprocessable and reprogrammable soft actuators is limited by the synthetic strategies, 3D-shaping capabilities, and small deformations. In this work, melt-processable supramolecular soft actuators based on segmented copolymers containing thiourethane and liquid crystal segments have been prepared via sequential thiol addition reactions in a one-pot approach using commercially available building blocks. The actuators demonstrated immediate, reversible response and weightlifting capabilities with large deformations up to 32 %. Through exploiting the supramolecular cross-links, the material could be recycled and reprogrammed into 3D actuators and welded into an actuator assembly with different deformation modes. Our work offers a one-pot synthesis and straightforward melt-processable approach to prepare supramolecular soft actuators with large deformations that can be reprocessed and reprogrammed into arbitrary 3D shapes.
    Language English
    Publishing date 2021-12-20
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 2011836-3
    ISSN 1521-3773 ; 1433-7851
    ISSN (online) 1521-3773
    ISSN 1433-7851
    DOI 10.1002/anie.202115166
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Microcrystal actuator arrays see the light.

    Schenning, Albert P H J

    Nature materials

    2023  Volume 22, Issue 9, Page(s) 1053–1054

    Language English
    Publishing date 2023-08-07
    Publishing country England
    Document type Journal Article
    ZDB-ID 2088679-2
    ISSN 1476-4660 ; 1476-1122
    ISSN (online) 1476-4660
    ISSN 1476-1122
    DOI 10.1038/s41563-023-01633-x
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: A full color photonic polymer, rewritable with a liquid crystal ink.

    Moirangthem, Monali / Scheers, Anouk F / Schenning, Albertus P H J

    Chemical communications (Cambridge, England)

    2018  Volume 54, Issue 35, Page(s) 4425–4428

    Abstract: A printable and rewritable photonic polymer coating has been fabricated from a cholesteric liquid crystal. Full color images can be patterned in polymer coatings by using a liquid crystal ink. The printed patterns can be erased and rewritten multiple ... ...

    Abstract A printable and rewritable photonic polymer coating has been fabricated from a cholesteric liquid crystal. Full color images can be patterned in polymer coatings by using a liquid crystal ink. The printed patterns can be erased and rewritten multiple times, making these coatings interesting as rewritable papers.
    Language English
    Publishing date 2018-04-26
    Publishing country England
    Document type Journal Article
    ZDB-ID 1472881-3
    ISSN 1364-548X ; 1359-7345 ; 0009-241X
    ISSN (online) 1364-548X
    ISSN 1359-7345 ; 0009-241X
    DOI 10.1039/c8cc02188k
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Full Color Camouflage in a Printable Photonic Blue-Colored Polymer.

    Moirangthem, Monali / Schenning, Albertus P H J

    ACS applied materials & interfaces

    2018  Volume 10, Issue 4, Page(s) 4168–4172

    Abstract: A blue reflective photonic polymer coating which can be patterned in full color, from blue to red, by printing with an aqueous calcium nitrate solution has been fabricated. Color change in the cholesteric liquid-crystalline polymer network over the ... ...

    Abstract A blue reflective photonic polymer coating which can be patterned in full color, from blue to red, by printing with an aqueous calcium nitrate solution has been fabricated. Color change in the cholesteric liquid-crystalline polymer network over the entire visible spectrum is obtained by the use of nonreactive mesogen. The pattern in the coating is hidden in the blue color dry state and appears upon exposure to water or by exhaling breath onto it due to different degrees of swelling of the polymer network. The degree of swelling depends on the printed amount of calcium which acts as a cross-linker. The printed full color pattern can also be hidden simply by using a circular polarizer. The responsive full color camouflage polymers are interesting for various applications ranging from responsive house and automobile decors to anticounterfeit labels and data encryption.
    Language English
    Publishing date 2018-01-17
    Publishing country United States
    Document type Journal Article
    ISSN 1944-8252
    ISSN (online) 1944-8252
    DOI 10.1021/acsami.7b17892
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: Multicolor photonic patterns through an intensity-controlled single photopolymerization step

    Foelen, Yari / van Gils, Nieké J. M. / Claessen, Mart D. T. / Schenning, Albertus P. H. J.

    Chemical communications. 2022 Sept. 27, v. 58, no. 77

    2022  

    Abstract: The UV intensity during photopolymerization allows control over the structural color of a cholesteric liquid crystal (CLC) polymer photonic coating in a single step. Simultaneously, the glass transition temperature (Tg) of the polymer can be tuned by the ...

    Abstract The UV intensity during photopolymerization allows control over the structural color of a cholesteric liquid crystal (CLC) polymer photonic coating in a single step. Simultaneously, the glass transition temperature (Tg) of the polymer can be tuned by the applied UV intensity. Most likely the low intensity photopolymerization increases the inhibition time, leading to in situ formation of polymer fragments through oxygen inhibition. The formation of polymer fragments changes the matrix during the inhibition time, which results in a color change before the polymer network is formed. Additionally, these fragments inside the network act as a plasticizer, effectively lowering the Tg. This method can be combined with temperature responsive properties based on shape memory to fabricate photonic coatings with multiple, responsive colored patterns. The presented work allows for new functionalities in responsive photonic polymers as multiple colors and response temperatures can be incorporated in a single polymerization step.
    Keywords color ; glass transition temperature ; liquid crystals ; oxygen ; photons ; plasticizers ; polymerization ; polymers
    Language English
    Dates of publication 2022-0927
    Size p. 10833-10836.
    Publishing place The Royal Society of Chemistry
    Document type Article
    ZDB-ID 1472881-3
    ISSN 1364-548X ; 1359-7345 ; 0009-241X
    ISSN (online) 1364-548X
    ISSN 1359-7345 ; 0009-241X
    DOI 10.1039/d2cc04050f
    Database NAL-Catalogue (AGRICOLA)

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  7. Article ; Online: Scalable Photochromic Film for Solar Heat and Daylight Management.

    Meng, Weihao / Kragt, Augustinus J J / Gao, Yingtao / Brembilla, Eleonora / Hu, Xiaowen / van der Burgt, Julia S / Schenning, Albertus P H J / Klein, Tillmann / Zhou, Guofu / van den Ham, Eric R / Tan, Longfei / Li, Laifeng / Wang, Jingxia / Jiang, Lei

    Advanced materials (Deerfield Beach, Fla.)

    2023  Volume 36, Issue 5, Page(s) e2304910

    Abstract: The adaptive control of sunlight through photochromic smart windows could have a huge impact on the energy efficiency and daylight comfort in buildings. However, the fabrication of inorganic nanoparticle and polymer composite photochromic films with a ... ...

    Abstract The adaptive control of sunlight through photochromic smart windows could have a huge impact on the energy efficiency and daylight comfort in buildings. However, the fabrication of inorganic nanoparticle and polymer composite photochromic films with a high contrast ratio and high transparency/low haze remains a challenge. Here, a solution method is presented for the in situ growth of copper-doped tungsten trioxide nanoparticles in polymethyl methacrylate, which allows a low-cost preparation of photochromic films with a high luminous transparency (luminous transmittance T
    Language English
    Publishing date 2023-12-05
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 1474949-X
    ISSN 1521-4095 ; 0935-9648
    ISSN (online) 1521-4095
    ISSN 0935-9648
    DOI 10.1002/adma.202304910
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Anisotropic Iridescence and Polarization Patterns in a Direct Ink Written Chiral Photonic Polymer.

    Sol, Jeroen A H P / Sentjens, Henk / Yang, Lanti / Grossiord, Nadia / Schenning, Albertus P H J / Debije, Michael G

    Advanced materials (Deerfield Beach, Fla.)

    2021  Volume 33, Issue 39, Page(s) e2103309

    Abstract: The iridescence of structural color and its polarization characteristics originate from the nanoscale organization of materials. A major challenge in materials science is generating the bright, lustrous hues seen in nature through nanoscale engineering, ... ...

    Abstract The iridescence of structural color and its polarization characteristics originate from the nanoscale organization of materials. A major challenge in materials science is generating the bright, lustrous hues seen in nature through nanoscale engineering, while simultaneously controlling interaction of the material with different light polarizations. In this work, a suitable chiral nematic liquid crystal elastomer ink is synthesized for direct ink writing, which self-assembles into a chiral photonic structure. Tuning the writing direction and speed leads to the programmed formation of a slanted photonic axis, which exhibits atypical iridescence and polarization selectivity. After crosslinking, a freely programmable, chiroptical photonic polymer material is obtained. The strongly perspective-dependent appearance of the material can function as specialized anticounterfeit markers, as optical elements in decorative iridescent coatings, or, as demonstrated here, in optically based signaling features.
    Language English
    Publishing date 2021-08-09
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 1474949-X
    ISSN 1521-4095 ; 0935-9648
    ISSN (online) 1521-4095
    ISSN 0935-9648
    DOI 10.1002/adma.202103309
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Environmentally responsive photonic polymers.

    van Heeswijk, Ellen P A / Kragt, Augustinus J J / Grossiord, Nadia / Schenning, Albertus P H J

    Chemical communications (Cambridge, England)

    2019  Volume 55, Issue 20, Page(s) 2880–2891

    Abstract: Stimulus-responsive photonic polymer materials that change their reflection colour as function of environmental stimuli such as temperature, humidity and light, are attractive for various applications (e.g. sensors, smart windows and communication). ... ...

    Abstract Stimulus-responsive photonic polymer materials that change their reflection colour as function of environmental stimuli such as temperature, humidity and light, are attractive for various applications (e.g. sensors, smart windows and communication). Polymers provide low density, tunable and patternable materials. This feature article focusses on various autonomously responding photonic polymer materials such as hydrogels, block copolymers and liquid crystals and discusses their potential industrial implementation.
    Language English
    Publishing date 2019-02-13
    Publishing country England
    Document type Journal Article
    ZDB-ID 1472881-3
    ISSN 1364-548X ; 1359-7345 ; 0009-241X
    ISSN (online) 1364-548X
    ISSN 1359-7345 ; 0009-241X
    DOI 10.1039/c8cc09672d
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Polymer Stabilized Cholesteric Liquid Crystal Siloxane for Temperature-Responsive Photonic Coatings.

    Zhang, Weixin / Lub, Johan / Schenning, Albertus P H J / Zhou, Guofu / de Haan, Laurens T

    International journal of molecular sciences

    2020  Volume 21, Issue 5

    Abstract: Temperature-responsive photonic coatings are appealing for a variety of applications, including smart windows. However, the fabrication of such reflective polymer coatings remains a challenge. In this work, we report the development of a temperature- ... ...

    Abstract Temperature-responsive photonic coatings are appealing for a variety of applications, including smart windows. However, the fabrication of such reflective polymer coatings remains a challenge. In this work, we report the development of a temperature-responsive, infrared-reflective coating consisting of a polymer-stabilized cholesteric liquid crystal siloxane, applied by a simple bar coating method. First, a side-chain liquid crystal oligosiloxane containing acrylate, chiral and mesogenic moieties was successfully synthesized via multiple steps, including preparing precursors, hydrosilylation, deprotection, and esterification reactions. Products of all the steps were fully characterized revealing a chain extension during the deprotection step. Subsequently, the photonic coating was fabricated by bar-coating the cholesteric liquid crystal oligomer on glass, using a mediator liquid crystalline molecule. After the UV-curing and removal of the mediator, a transparent IR reflective polymer-stabilized cholesteric liquid crystal coating was obtained. Notably, this fully cured, partially crosslinked transparent polymer coating retained temperature responsiveness due to the presence of non-reactive liquid-crystal oligosiloxanes. Upon increasing the temperature from room temperature, the polymer-stabilized cholesteric liquid crystal coating showed a continuous blue-shift of the reflection band from 1400 nm to 800 nm, and the shift was fully reversible.
    MeSH term(s) Liquid Crystals/chemistry ; Optical Phenomena ; Photons ; Polymers/chemistry ; Siloxanes/chemistry ; Temperature
    Chemical Substances Polymers ; Siloxanes ; liquid crystal polymer
    Language English
    Publishing date 2020-03-06
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2019364-6
    ISSN 1422-0067 ; 1422-0067 ; 1661-6596
    ISSN (online) 1422-0067
    ISSN 1422-0067 ; 1661-6596
    DOI 10.3390/ijms21051803
    Database MEDical Literature Analysis and Retrieval System OnLINE

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