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A comparative analysis of the preparation of cellulose acetate butyrate and the characteristics of applying in pearlescent coating film. Polym Bull (Berl) 2019. [DOI: 10.1007/s00289-019-02886-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Kim NS, Lee WY, Jung SH, Suh MC. Light modulation of top emission organic light emitting diodes showing strong microcavity effect by applying multilayered scattering film. OPTICS EXPRESS 2018; 26:1185-1198. [PMID: 29401995 DOI: 10.1364/oe.26.001185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Accepted: 01/03/2018] [Indexed: 06/07/2023]
Abstract
In order to suppress the viewing angle dependence of top emission organic light emitting diodes (TEOEDs) on a strong microcavity structure, we prepared multi-layered nano scattering film which was consisted with transparent planarizing layer and hazy crosslinked scattering layer. Through such an approach, we could obtain not only a stable color shift and luminance distribution with viewing angle but also a negligible pixel blur level. Meanwhile, we investigated a black tint level of TEOLEDs after attachment of circular polarizer (CP) on various nano scattering films because nano scattering film deteriorates a black level. We found that the black level could be improved from the black tint by reducing the refractive index difference between planarizing layer and scattering layer.
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A versatile method for the surface tailoring of cellulose nanocrystal building blocks by acylation with functional vinyl esters. Carbohydr Polym 2017; 169:189-197. [DOI: 10.1016/j.carbpol.2017.03.077] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Revised: 03/17/2017] [Accepted: 03/23/2017] [Indexed: 11/21/2022]
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4
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He XZ, Gao YF, Zheng JJ, Li XY, Meng FB, Hu JS. Chiral photosensitive side-chain liquid crystalline polymers—synthesis and characterization. Colloid Polym Sci 2016. [DOI: 10.1007/s00396-016-3939-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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5
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Planes M, Brand J, Lewandowski S, Remaury S, Solé S, Le Coz C, Carlotti S, Sèbe G. Improvement of the Thermal and Optical Performances of Protective Polydimethylsiloxane Space Coatings with Cellulose Nanocrystal Additives. ACS APPLIED MATERIALS & INTERFACES 2016; 8:28030-28039. [PMID: 27673743 DOI: 10.1021/acsami.6b09043] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
This work investigates the possibility of using cellulose nanocrystals (CNCs) as biobased nanoadditives in protective polydimethylsiloxane (PDMS) space coatings, to improve the thermal and optical performances of the material. CNCs produced from wood pulp were functionalized in different conditions with the objective to improve their dispersibility in the PDMS matrix, increase their thermal stability and provide photoactive functions. Polysiloxane, cinnamate, chloroacetate and trifluoroacetate moieties were accordingly anchored at the CNCs surface by silylation, using two different approaches, or acylation with different functional vinyl esters. The modified CNCs were thoroughly characterized by FT-IR spectroscopy, solid-state NMR spectroscopy and thermogravimetric analysis, before being incorporated into a PDMS space coating formulation in low concentration (0.5 to 4 wt %). The cross-linked PDMS films were subsequently investigated with regards to their mechanical behavior, thermal stability and optical properties after photoaging. Results revealed that the CNC additives could significantly improve the thermal stability of the PDMS coating, up to 140 °C, depending on the treatment and CNC concentration, without affecting the mechanical properties and transparency of the material. In addition, the PDMS films loaded with as low as 1 wt % halogenated nanoparticles, exhibited an improved UV-stability after irradiation in geostationary conditions.
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Affiliation(s)
- Mikael Planes
- Université Bordeaux , Bordeaux INP, LCPO, UMR 5629, F-33600 Pessac, France
- CNRS, LCPO, UMR 5629, F-33600 Pessac, France
- CNES-French Aerospace Agency , 18 avenue Edouard Belin, F-31401 Toulouse cedex 9, France
| | - Jérémie Brand
- Université Bordeaux , Bordeaux INP, LCPO, UMR 5629, F-33600 Pessac, France
- CNRS, LCPO, UMR 5629, F-33600 Pessac, France
| | | | - Stéphanie Remaury
- CNES-French Aerospace Agency , 18 avenue Edouard Belin, F-31401 Toulouse cedex 9, France
| | | | | | - Stéphane Carlotti
- Université Bordeaux , Bordeaux INP, LCPO, UMR 5629, F-33600 Pessac, France
- CNRS, LCPO, UMR 5629, F-33600 Pessac, France
| | - Gilles Sèbe
- Université Bordeaux , Bordeaux INP, LCPO, UMR 5629, F-33600 Pessac, France
- CNRS, LCPO, UMR 5629, F-33600 Pessac, France
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Farcas A, Assaf KI, Resmerita AM, Cantin S, Balan M, Aubert PH, Nau WM. Cucurbit[7]uril-based fluorene polyrotaxanes. Eur Polym J 2016. [DOI: 10.1016/j.eurpolymj.2016.08.031] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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7
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Han HJ, Zhang S, Sun RY, Wu JH, Xie MR, Liao XJ. Photocrosslinkable polynorbornene-based block copolymers with enhanced dielectric and thermal properties. CHINESE JOURNAL OF POLYMER SCIENCE 2016. [DOI: 10.1007/s10118-016-1753-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Guo W, Wang T, Tang X, Zhang Q, Yu F, Pei M. Triple stimuli-responsive amphiphilic glycopolymer. ACTA ACUST UNITED AC 2014. [DOI: 10.1002/pola.27222] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Wenjuan Guo
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering; University of Jinan; Jinan 250022 China
| | - Tieshi Wang
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering; University of Jinan; Jinan 250022 China
| | - Xinde Tang
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering; University of Jinan; Jinan 250022 China
- Department of Polymeric Materials, School of Material Science and Engineering; Shandong Jiaotong University; Jinan 250023 China
| | - Qun Zhang
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering; University of Jinan; Jinan 250022 China
| | - Faqi Yu
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering; University of Jinan; Jinan 250022 China
| | - Meishan Pei
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering; University of Jinan; Jinan 250022 China
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Abrakhi S, Péralta S, Fichet O, Teyssié D, Cantin S. Poly(azobenzene acrylate-co-fluorinated acrylate) spin-coated films: influence of the composition on the photo-controlled wettability. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:9499-9509. [PMID: 23805895 DOI: 10.1021/la400938j] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The wetting properties of spin-coated films of copolymers based on azobenzene and fluorinated units have been investigated. The copolymers, denoted as poly(Azo-co-AcRf6), have been synthesized by free-radical polymerization of different proportions of acrylate monomers bearing either an azobenzene group or a semifluorinated side chain. The UV-visible spectroscopy analysis of the different spin-coating films through a cycle of UV and visible light irradiation indicates the reversible trans-cis isomerization of azobenzene groups. Simultaneously, atomic force microscopy shows that surface roughness does not exceed 1 nm. Advancing and receding contact angles of water and diiodomethane have been measured before and after UV photoirradiation of the different surfaces. In particular, a decrease in the advancing contact angles has been observed upon trans-cis isomerization of azobenzene groups. Switching variations up to 50° have been evidenced without any introduction of surface nanoroughness. Surface free-energy evaluations have been deduced from these measurements, including dispersive and polar components. The results show that, through surface composition and UV photoirradiation, a large range of surface free-energies can be obtained, from 7 to 46 mN·m(-1).
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Affiliation(s)
- Sanae Abrakhi
- Laboratoire de Physicochimie des Polymères et des Interfaces (LPPI, EA 2528), Institut des Matériaux, Université de Cergy-Pontoise, 5 mail Gay-Lussac Neuville/Oise, 95000 Cergy-Pontoise Cedex, France
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Backus EHG, Abrakhi S, Péralta S, Teyssié D, Fichet O, Cantin S. Sum-Frequency Generation Spectroscopy of Cinnamate Modified Cellulosic Polymer at the Air–Water Interface. J Phys Chem B 2012; 116:6041-9. [DOI: 10.1021/jp301844b] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Ellen H. G. Backus
- FOM Institute AMOLF, Science Park 104, 1098 XG Amsterdam,
The Netherlands, and Max Planck Institute for Polymer Research (MPIP), Ackermannweg 10, 55128
Mainz, Germany
| | - Sanae Abrakhi
- Laboratoire
de Physico-Chimie
des Polymères et des Interfaces (LPPI, EA 2528), Institut des
Matériaux, Université de Cergy-Pontoise, 5 mail Gay-Lussac Neuville/Oise, 95000 Cergy-Pontoise Cedex, France
| | - Sébastien Péralta
- Laboratoire
de Physico-Chimie
des Polymères et des Interfaces (LPPI, EA 2528), Institut des
Matériaux, Université de Cergy-Pontoise, 5 mail Gay-Lussac Neuville/Oise, 95000 Cergy-Pontoise Cedex, France
| | - Dominique Teyssié
- Laboratoire
de Physico-Chimie
des Polymères et des Interfaces (LPPI, EA 2528), Institut des
Matériaux, Université de Cergy-Pontoise, 5 mail Gay-Lussac Neuville/Oise, 95000 Cergy-Pontoise Cedex, France
| | - Odile Fichet
- Laboratoire
de Physico-Chimie
des Polymères et des Interfaces (LPPI, EA 2528), Institut des
Matériaux, Université de Cergy-Pontoise, 5 mail Gay-Lussac Neuville/Oise, 95000 Cergy-Pontoise Cedex, France
| | - Sophie Cantin
- Laboratoire
de Physico-Chimie
des Polymères et des Interfaces (LPPI, EA 2528), Institut des
Matériaux, Université de Cergy-Pontoise, 5 mail Gay-Lussac Neuville/Oise, 95000 Cergy-Pontoise Cedex, France
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