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Microcapsule-based materials for electrophoretic displays

Published online by Cambridge University Press:  20 January 2012

Gang Wu ,
Peipei Yin ,
Runying Dai ,
Mang Wang ,
Hongzheng Chen ,
Hecheng Li  and
Dongyuan Liu
Gang Wu
Affiliation:
MOE Key Laboratory of Macromolecule Synthesis and Functionalization, State Key Lab of Silicon Materials, and Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, People’s Republic of China
Peipei Yin
Affiliation:
MOE Key Laboratory of Macromolecule Synthesis and Functionalization, State Key Lab of Silicon Materials, and Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, People’s Republic of China
Runying Dai
Affiliation:
MOE Key Laboratory of Macromolecule Synthesis and Functionalization, State Key Lab of Silicon Materials, and Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, People’s Republic of China
Mang Wang
Affiliation:
MOE Key Laboratory of Macromolecule Synthesis and Functionalization, State Key Lab of Silicon Materials, and Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, People’s Republic of China
Hongzheng Chen*
Affiliation:
MOE Key Laboratory of Macromolecule Synthesis and Functionalization, State Key Lab of Silicon Materials, and Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, People’s Republic of China
Hecheng Li
Affiliation:
Lucky Huaguang Graphics Co., Ltd, Nanyang 473003, People’s Republic of China
Dongyuan Liu
Affiliation:
Lucky Huaguang Graphics Co., Ltd, Nanyang 473003, People’s Republic of China
*
a)Address all correspondence to this author. e-mail: [email protected]
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Abstract

Electrophoretic displays (EPDs) are attracting a great deal of academic and commercial interest due to the advantages of both electronic displays and conventional paper. The key materials for EPD application of microcapsules are the electrophoretic particles and the capsule wall enwrapping the electrophoretic suspension inside. Here, black and white electrophoretic particles with low density and good dispersity such as titanium dioxide, carbon black, and Cu2Cr2O3 were prepared by surface modification of the pigments. The preparation and properties of the gelatin-based microcapsules prepared by complex coacervation methods are also summarized. The microcapsules have transparent and elastic walls of compact structure, which endows them with good barrier properties and thermal stability for EPD application. EPD prototype devices based on the obtained microcapsules were prepared and could be driven at 9 V.

Keywords

PolymerElectronic materialColloid
Type
Invited Feature Paper
Information
Journal of Materials Research , Volume 27 , Issue 4 , 28 February 2012 , pp. 653 - 662
Copyright
Copyright © Materials Research Society 2012

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References

REFERENCES

1.Jang, I.B., Sung, J.H., Choi, H.J., and Chin, I.: Synthesis and characterization of TiO2/polystyrene hybrid nanoparticles via admicellar polymerization. J. Mater. Sci. 40, 3021 (2005).CrossRefGoogle Scholar
2.Kim, C.A., Kim, M.K., Joung, M.J., Ahn, S.D., Kang, S.Y., Lee, Y.E., and Suh, K.S.: Amino resin microcapsules containing polystyrene-coated electrophoretic titanium oxide particle suspension. J. Ind. Eng. Chem. 9, 674 (2003).Google Scholar
3.Yu, D.G., An, J.H., Bae, J.Y., Jung, D.J., Kim, S., Ahn, S.D., Kang, S.Y., and Suh, K.S.: Preparation and characterization of acrylic-based electronic inks by in situ emulsifier-free emulsion polymerization for electrophoretic displays. Chem. Mater. 16, 4693 (2004).CrossRefGoogle Scholar
4.Granmar, M. and Cho, A.: Electronic paper: A revolution about to unfold? Science 308, 785 (2005).CrossRefGoogle ScholarPubMed
5.Jang, I.B., Sung, J.H., Choi, H.J., and Chin, I.: Synthesis and characterization of titania coated polystyrene core-shell spheres for electronic ink. Synth. Met. 152, 9 (2005).CrossRefGoogle Scholar
6.Evans, P.F., Lees, H.D., Maltz, M.S., and Dailey, J.L.: Color Display Device. US Patent 3612758 (1969).Google Scholar
7.Comiskey, B., Albert, J.D., Yoshizawa, H., and Jacobson, J.: An electrophoretic ink for all-printed reflective electronic displays. Nature 394, 253 (1998).CrossRefGoogle Scholar
8.Meng, X.W., Tang, F.Q., Peng, B., and Ren, J.: Monodisperse hollow tricolor pigment particles for electronic paper. Nanoscale Res. Lett. 5, 174 (2010).CrossRefGoogle Scholar
9.Fang, X.J., Yang, H., Wu, G., Chen, H.Z., and Wang, M.: Preparation and characterization of low density polystyrene/TiO2 core-shell particles for electronic paper application. Curr. Appl. Phys. 9, 755 (2009).CrossRefGoogle Scholar
10.Zou, H., Wu, S.S., and Shen, J.: Polymer/silica nanocomposites: Preparation, characterization, properties, and applications. Chem. Rev. 108, 3893 (2008).CrossRefGoogle ScholarPubMed
11.Park, J.H., Lee, M.A., Park, B.J., and Choi, H.J.: Preparation and electrophoretic response of poly(methyl methacrylate-co-methacrylic acid) coated TiO2 nanoparticles for electronic paper application. Curr. Appl. Phys. 7, 349 (2007).CrossRefGoogle Scholar
12.Werts, M.P.L., Badila, M., Brochon, C., Hebraud, A., and Hadziioannou, G.: Titanium dioxide-polymer core–shell particles dispersions as electronic inks for electrophoretic displays. Chem. Mater. 20, 1292 (2008).CrossRefGoogle Scholar
13.Li, L.Y., Qin, D.B., Yang, X.L., and Liu, G.Y.: Synthesis of titania/polymer core-shell hybrid microspheres. Colloid Polym. Sci. 288, 199 (2010).CrossRefGoogle Scholar
14.Kim, J., Garoff, S.G., Anderson, J.L., and Schlangen, L.J.M.: Movement of colloidal particles in two-dimensional electric fields. Langmuir 21, 10941 (2005).CrossRefGoogle ScholarPubMed
15.Yin, P.P., Wu, G., and Chen, H.Z.: Preparation and characterization of carbon black/acrylic copolymer hybrid particles for dual particle electrophoretic display. Synth. Met. 161, 15 (2011).CrossRefGoogle Scholar
16.Meng, X.W., Wen, T., Sun, S.W., Zheng, R.B., Ren, J., and Tang, F.Q.: Synthesis and application of carbon–iron oxide microspheres’ black pigments in electrophoretic displays. Nanoscale Res. Lett. 5, 1664 (2010).CrossRefGoogle ScholarPubMed
17.Zhao, Q., Tan, T.F., Qi, P., Wang, S.R., Bian, S.G., Li, X.G., An, Y., and Liu, Z.J.: Preparation and surface encapsulation of hollow TiO nanoparticles for electrophoretic displays. Appl. Surf. Sci. 257, 3499 (2011).CrossRefGoogle Scholar
18.Yu, D.G., An, J.H., Bae, J.Y., Ahn, S.D., Kang, S.Y., and Suh, K.S.: Negatively charged ultrafine black particles of P(MMA-co-EGDMA) by dispersion polymerization for electrophoretic displays. Macromolecules 38, 7485 (2005).CrossRefGoogle Scholar
19.Chan, Y.N., Craig, G.S.W., Schrock, R.R., and Cohen, R.E.: Synthesis of palladium and platinum nanoclusters within microphase-separated diblock copolymers. Chem. Mater. 4, 885 (1992).CrossRefGoogle Scholar
20.Wang, P.H. and Pan, C.Y.: Polymer metal composite microspheres. Preparation and characterization of poly(St-co-AN)Ni microspheres. Eur. Polym. J. 36, 2297 (2000).CrossRefGoogle Scholar
21.Kim, K.S., Lee, J.Y., Park, B.J., Sung, J.H., Chin, I., Choi, H.J., and Lee, J.H.: Synthesis and characteristics of microcapsules containing electrophoretic particle suspensions. Colloid Polym. Sci. 284, 813 (2006).CrossRefGoogle Scholar
22.Encina, G.G., Sangliv, S.P., and Nairn, J.G.: Phase diagram studies of microcapsule formation using hydroxpropyl methylcellulose phthalate. Drug Dev. Ind. Pharm. 18, 561 (1992).CrossRefGoogle Scholar
23.Naka, Y., Kaetsu, I., Yamamoto, Y., and Hayashi, K.: Preparation of microspheres by radiation-induced polymerization. I: Mechanism for the formation of monodisperse poly(diethylene glycol dimethacrylate) microspheres. J. Polym. Sci. Part A: Polym. Chem. 29, 1197 (1991).CrossRefGoogle Scholar
24.Sung, J.H., Lee, Y.H., Jang, I.B., Choi, H.J., and Jhon, M.S.: Synthesis and electrorheological characteristics of microencapsulated conducting polymer. Des. Monomers Polym. 7, 101 (2004).CrossRefGoogle Scholar
25.Hong, K. and Park, S.: Preparation of polyurea microcapsules containing ovalbumin. Mater. Chem. Phys. 64(1), 20 (2000).CrossRefGoogle Scholar
26.Hong, K. and Park, S.: Preparation of polyurethane microcapsules with different soft segments and their characteristics. React. Funct. Polym. 42(3), 193 (1999).CrossRefGoogle Scholar
27.Wang, J.P., Zhao, X.P., Guo, H.L., and Zheng, Q.: Preparation and response behavior of blue electronic ink microcapsules. Opt. Mater. 30(8), 1268 (2008).CrossRefGoogle Scholar
28.Guo, H.L., Zhao, X.P., and Wang, J.P.: Synthesis of functional microcapsules containing suspensions responsive to electric fields. J. Colloid Interface Sci. 284(2), 646 (2005).CrossRefGoogle ScholarPubMed
29.Mayya, K.S., Bhattacharyya, A., and Argillier, J.F.: Micro-encapsulation by complex coacervation: Influence of surfactant. Polym. Int. 52(4), 644 (2003).CrossRefGoogle Scholar
30.Kruif, C.G.D., Weinbreck, F., and Vries, R.D.: Complex coacervation of proteins and anionic polysaccharides. Curr. Opin. Colloid Interface Sci. 9(5), 340 (2004).CrossRefGoogle Scholar
31.Sun, G. and Zhang, Z.: Mechanical strength of microcapsules made of different wall materials. Int. J. Pharm. 242, 307 (2002).CrossRefGoogle ScholarPubMed
32.Chang, C.P., Leung, T.K., and Lin, S.M.: Release properties on gelatin-gum arabic microcapsules containing camphor oil with added polystyrene. Colloids Surf. B 50, 136 (2006).CrossRefGoogle ScholarPubMed
33.Dong, Z.J., Xia, S.Q., Hua, S., Hayat, K., Zhang, X.M., and Xu, S.Y.: Optimization of cross-linking parameters during production of transglutaminase-hardened spherical multinuclear microcapsules by complex coacervation. Colloids Surf. B 63, 41 (2008).CrossRefGoogle ScholarPubMed
34.Dai, R.Y., Wu, G., and Chen, H.Z.: Stable titanium dioxide grafted with poly[N-(p-vinyl benzyl) phthalimide] composite particles in suspension for electrophoretic displays. Colloid Polym. Sci. 289, 401 (2011).CrossRefGoogle Scholar
35.Dai, R.Y., Wu, G., Li, W.G., Zhou, Q., Li, X.H., and Chen, H.Z.: Gelatin/carboxymethylcellulose/dioctyl sulfosuccinate sodium microcapsule by complex coacervation and its application for electrophoretic display. Colloids Surf. A 362, 84 (2010).CrossRefGoogle Scholar
36.Chatterjee, A., Moulik, S.P., Sanyal, S.K., Mishra, B.K., and Puri, P.M.: Thermodynamics of micelle formation of ionic surfactants: A critical assessment for sodium dodecyl sulfate, cetyl pyridinium chloride and dioctyl sulfosuccinate (Na salt) by microcalorimetric, conductometric, and tensiometric measurements. J. Phys. Chem. B 105, 12823 (2001).CrossRefGoogle Scholar
37.Emregiil, E., Sungur, S., and Akbulut, U.: Effect of chromium salts on invertase immobilization onto carboxymethylcellulose-gelatine carrier system. Biomaterials 17, 1423 (1996).CrossRefGoogle Scholar
38.Rong, Y., Chen, H.Z., Wei, D.C., and Wang, M.: Microcapsules with compact membrane structure from gelatin and styrene–maleic anhydride copolymer by complex coacervation. Colloids Surf. A 242, 17 (2004).CrossRefGoogle Scholar
39.Li, W.G., Wu, G., Chen, H.Z., and Wang, M.: Preparation of gelatin/alginate electrophoretic ink microcapsules and electrophoretic display prototype, in The 6th International Conference on Imaging Science and Hardcopy ICISH’2008, p. 228, 2008.Google Scholar
40.Li, W.G., Wu, G., Chen, H.Z., and Wang, M.: Preparation and characterization of gelatin/SDS/NaCMC microcapsules with compact wall structure by complex coacervation. Colloids Surf. A 333, 133 (2009).CrossRefGoogle Scholar
41.Wu, G., Dai, R.Y., Li, W.G., Yin, P.P., Chen, H.Z., and Wang, M.: Preparation of stable gelatin/ sodium carboxymethylcellulose/ sodium laurylsulfonate microcapsules with ultra-thin capsule wall for electrophoretic displays. Curr. Appl. Phys. 11, 321 (2011).CrossRefGoogle Scholar
42.Dai, R.Y., Wu, G., and Chen, H.Z.: Microcapsules with compact wall from hydrocarbon/fluorocarbon composite surfactants for electrophoretic display. Sci. China Chem. 54, 385 (2011).CrossRefGoogle Scholar
43.Mayya, K.S., Bhattacharyya, A., and Argillier, J.F.: Micro-encapsulation by complex coacervation: Influence of surfactant. Polym. Int. 52, 644 (2003).CrossRefGoogle Scholar
44.Guillot, S., Delsanti, M., Desert, S., and Langevin, D.: Surfactant-induced collapse of polymer chains and monodisperse growth of aggregates near the precipitation boundary in carboxymethylcellulose−DTAB aqueous solutions. Langmuir 19, 230 (2003).CrossRefGoogle Scholar
45.Luzzi, L.A. and Gerraughty, R.J.: Effects of selected variables on the extractability of oils from coacervate capsules. J. Pharm. Sci. 53, 429 (1964).CrossRefGoogle ScholarPubMed
46.Mayya, K.S., Bhattacharyya, A., and Argillier, J.F.: Micro-encapsulation by complex coacervation: Influence of surfactant. Polym. Int. 52, 644 (2003).CrossRefGoogle Scholar
47.Dhara, D. and Shah, D.O.: Stability of sodium dodecyl sulfate micelles in the presence of a range of water-soluble polymers: A pressure-jump study. J. Phys. Chem. B 105, 7133 (2001).CrossRefGoogle Scholar
48.Dickinson, E. and Matsumura, Y.: Competitive adsorption of β-lactoglobulin+ Tween 20 at the oil–water interface. Int. J. Biol. Macromol. 13, 26 (1991).CrossRefGoogle Scholar