Articles & Issues
- Language
- English
- Conflict of Interest
- In relation to this article, we declare that there is no conflict of interest.
- Publication history
-
Received April 29, 2009
Accepted June 29, 2009
-
This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits
unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Copyright © KIChE. All rights reserved.
All issues
Preparation of polymethacrylate-based side-chain liquid crystalline polymers with various lengths of aliphatic spacer and their electrorheology
Faculty of Applied Chemical Engineering, Chonnam National University, 300 Yongbong-dong, Gwangju 500-757, Korea
Korean Journal of Chemical Engineering, January 2010, 27(1), 32-36(5), 10.1007/s11814-009-0319-z
Download PDF
Abstract
Three kinds of side-chain liquid crystal polymers (SCLCPs) were prepared in which the lengths of the flexible aliphatic spacer were 6, 8, and 12 methylene units. The SCLCPs consisted of a polymethacrylate backbone carrying cyanobiphenyl mesogenic groups as side chains. All the polymers exhibited liquid crystalline behavior of smectic A phase. The glass transition temperature decreased with increasing aliphatic spacer length. Electrorheological (ER)_x000D_
suspensions were prepared by dispersing the SCLCP particles in silicone oil and their ER effects were investigated. The ER response increased with increasing aliphatic spacer length, indicating that the spacer length between the polymethacrylate backbone and polar mesogenic groups influenced the ER behavior.
References
Winslow WM, J. Appl. Phys., 20, 1137 (1949)
Shulman ZP, Gorodkin RG, Korobko EV, Gleb VK, J. Non-Newt. Fluid Mech., 8, 29 (1981)
Kim YD, Lee MS, Korean J. Chem. Eng., 21(3), 567 (2004)
Kim YD, Park DH, Synthetic Metals, 142, 147 (2004)
Cho MS, Cho YH, Choi HJ, Jhon MS, Langmuir, 19(14), 5875 (2003)
Yoon DJ, Kim YD, J. Colloid Interface Sci., 303(2), 573 (2006)
Kim YD, Kim JH, Colloid Polym. Sci., 286, 631 (2008)
Lee IS, Cho MS, Choi HJ, Polymer, 46(4), 1317 (2005)
Craig AA, Imrie CT, Macromolecules, 28(10), 3617 (1995)
Kaneko K, Miwa Y, Nakamura N, Polymer, 48(25), 7264 (2007)
Inoue A, Maniwa S, J. Appl. Polym. Sci., 55(1), 113 (1995)
Orihara H, Kawasaki T, Doi M, Inoue A, J. Appl. Polym. Sci., 86(14), 3673 (2002)
Chiang YC, Jamieson AM, Zhao YQ, Kasko AM, Pugh C, Polymer, 43(18), 4887 (2002)
Shibaev VP, Kostromin SG, Plate NA, Eur. Polym. J., 18, 651 (1982)
Craig AA, Imrie CT, Polymer, 19, 4951 (1997)
Klingenberg DJ, Zukoski CF, Langmuir, 6, 15 (1990)
Shulman ZP, Gorodkin RG, Korobko EV, Gleb VK, J. Non-Newt. Fluid Mech., 8, 29 (1981)
Kim YD, Lee MS, Korean J. Chem. Eng., 21(3), 567 (2004)
Kim YD, Park DH, Synthetic Metals, 142, 147 (2004)
Cho MS, Cho YH, Choi HJ, Jhon MS, Langmuir, 19(14), 5875 (2003)
Yoon DJ, Kim YD, J. Colloid Interface Sci., 303(2), 573 (2006)
Kim YD, Kim JH, Colloid Polym. Sci., 286, 631 (2008)
Lee IS, Cho MS, Choi HJ, Polymer, 46(4), 1317 (2005)
Craig AA, Imrie CT, Macromolecules, 28(10), 3617 (1995)
Kaneko K, Miwa Y, Nakamura N, Polymer, 48(25), 7264 (2007)
Inoue A, Maniwa S, J. Appl. Polym. Sci., 55(1), 113 (1995)
Orihara H, Kawasaki T, Doi M, Inoue A, J. Appl. Polym. Sci., 86(14), 3673 (2002)
Chiang YC, Jamieson AM, Zhao YQ, Kasko AM, Pugh C, Polymer, 43(18), 4887 (2002)
Shibaev VP, Kostromin SG, Plate NA, Eur. Polym. J., 18, 651 (1982)
Craig AA, Imrie CT, Polymer, 19, 4951 (1997)
Klingenberg DJ, Zukoski CF, Langmuir, 6, 15 (1990)
