[KSCI] Korea Science Citation Index Service

Effect of Solvent on Swelling, Porosity and Morphology of Transparent Poly (HEMA)

Pathak Tara Sankar (Department of Chemical Engineering, Seoul National University of Technology)
Kim Lae-Hyun (Department of Chemical Engineering, Seoul National University of Technology)
Chung Kun-Yong (Department of Chemical Engineering, Seoul National University of Technology)

Publication Information

Korean Membrane Journal / v.8, no.1, 2006 , pp. 67-73 More about this Journal

Abstract

Transparent materials are well known but preparation of transparent poly 2-hydroxyethyl methacrylate {poly (HEMA)} material by varying solvent is a new one and economically reliable. This material is prepared from hydroxyl based monomer HEMA by radical polymerization using benzoyl peroxide (BPO) as initiator and isobutanol, 2-butanol, 1-butanol, hexane and toluene as a solvent. The reaction temperature, time and stirring speed were set at $70^{\circ}C$ , 4 hrs and 150 rpm, respectively. The polymer was characterized for functional group by IR spectroscopy. It was observed that the intensity of band at $1637 cm^{-1}$ a characteristic band of C=C stretching disappeared indicating that it was completely consumed after polymerization. It was observed that swelling percentage increases with increase as time passes but after a certain time a constant swelling percentage is achieved. SEM pictures reveals that poly (HEMA) prepared by different solvent shows pore with a distinguishable void up to several micrometers. The BET surface area, cumulative pore volume and average pore diameter is greater in poly (HEMA) prepared by hexane as a solvent compared to other solvents. Poly (HEMA) prepared by 1-butanol as a solvent shows higher glass transition temperature compared to other solvents. Poly (HEMA) prepared by different solvents shows $90{\sim}94%$ light transmission property from light transmission measurement and looks transparent.

Keywords

transparent poly (HEMA); radical polymerization; swelling; porosity; morphology;

Citations & Related Records

Reference

1	S. Senel, Colloids and Surfaces A: Physicochemical and Engineering Aspects, 219, 17 (2003) DOI
2	V. Kudela, Hydrogels. In: I. K Jacqueline, Eds., Encyclopedia of Polymer Science and Engineering, Wiley Interscience, New York (1976)
3	L. Uzun, R. Say, and A. Denizli, Reactive and functional polymer, 64, 93 (2005) DOI ScienceOn
4	O. Garcia, M. D. Blanco, J. A. Martin, and J. M. Teijon, Eur. Polym. J., 36, 111 (2000) DOI ScienceOn
5	G. Bayramoglu, E. Yalcin, and M. Y. Arica, Biochem. Engg. J., 26, 12 (2005) DOI ScienceOn
6	S. C. Yoon and M. S. Jhon, J. Polym. Sci., 27, 4661 (1982)
7	R. Y. S. Chen, Polym. Prep., 20(1), 1005 (1979)
8	J. P. Montheard, M. Chatzopoulos, and D. Chappard, JMS-rev. Macromol. Chem. Phys., C 32, 1 (1992)
9	C. A. Diakoumakos, I. Raptis, A. Tserepi, and P. Argitis, Polymer, 43, 1103 (2002) DOI ScienceOn
10	S. H. Gehrike and P. L. Lee, Hydrogels for drug delivery systems. In specialized drug delivery systems, P. Tyle, Eds., Marcell Dekker, New York, (1990)
11	A. Barton, Handbook of Solubility Parameters and other Cohesion Parameters, CRC Press, Florida (1985)
12	J. Brandrup and E. H. Immergut, Polymer Handbook, 3rd Edn., Wiley-Interscience, New York (1989)
13	Y. Kiritoshi and K. Ishihara, Polymer, 45, 7499 (2004) DOI ScienceOn
14	J. D. Andrade, Hydrogels for medical and related applications, ACS Symp. Ser., 31 (1976)
15	B. H. Kim, D. Kim, and Y. S. Jung, Macromolecular Research, 11, 291 (2003) DOI
16	C. R. Robert, P. A. Buri, and N. A. Peppas, J. Appl. Polym. Sci., 30, 301 (1985) DOI ScienceOn
17	N. A. Peppas, Hydrogel in medicine and pharmacy, CRC Press, Florida (1987)
18	O. Wichterle and D. Lim D, Nature, 185, 117 (1960) DOI
19	N. A. Peppas and M. J. Moynihan, Polymer News, 9, 139 (1983)
20	B. D. Ratner, and I. F. Miller, J. Biomed. Mater. Res., 7, 353 (1973) DOI
21	J. R. Dorgan and S. Y. Nam, Korean Membrane J., 5, 36 (2003)