Browse > Article

Synthesis and Characterization of Polyurethane bead/silica Hybrid Composites  

Yang, Seung Nam (Department of Chemical Engineering, College of Engineering Sungkyunkwan University)
Yim, Gie Hong (Department of Chemical Engineering, College of Engineering Sungkyunkwan University)
Kim, Nam Ki (Department of Chemical Engineering, College of Engineering Sungkyunkwan University)
Publication Information
Applied Chemistry for Engineering / v.18, no.4, 2007 , pp. 386-390 More about this Journal
Abstract
In this study, polyurethane prepolymers were synthesized from polycaprolactonediol (PCDs. M.W. 530, 830, 1000, 1250, and 2000) and polycaprolactonetriol (PCTs. M.W. 300 and 900), and hexamethylenediisocyanate (HMDI). Polyurethane beads was prepared from the different prepolymers by a two-step suspension polymerization. The particle size of polyurethane beads was investigated by particle size analyzer. The beads were $10{\sim}30{\mu}m$ in size. The structure of beads was confirmed by FT-IR spectrometer. Their thermal properties were analyzed by TGA. Glass transition temperatures ($T_g$) of the beads were in the range of $-23{\sim}-53^{\circ}C$ and decreased with the increase of the PCD molecular weight. In order to prevention the cohesion of beads, the beads were coated with tetraethoxysilane (TEOS).
Keywords
polyurethane bead; TEOS; polyurethane bead/silica hybrid;
Citations & Related Records

Times Cited By SCOPUS : 0
연도 인용수 순위
  • Reference
1 Y. Y. Yu and W. C. Chen, Mater. Chem. Phys, 82, 388 (2003)   DOI   ScienceOn
2 JP. Patent No. 平4-185648 (1992)
3 U. S. Patent 6, 586, 523 (2003)
4 J. P. Patent 特開平 8-290106 (1996)
5 S. M. Kim, N. S. Kwak, Y. K. Yang, B. Y. Park, and T. S. Hwang, Polymer(kor). 29, 253 (2005)
6 X. Shang, Z. K. Zhu, J. Yin, and X. D. Ma, Chem. Mater, 14, 71 (2002)   DOI   ScienceOn
7 J. W. Cho and S. H. Lee, Eur. Polym. J, 40, 1343 (2004)   DOI   ScienceOn
8 J. B. Lee and K. H. Lee, Elastomer, 40, 37 (2005)
9 G. H. Hsiue, W. J. Kuo, Y. P. Huang, and R. J. Jeng, Polymer, 41, 2813 (2000)   DOI   ScienceOn
10 Y. C. Chen, S. Zhou, H. Yang, G. Gu, and L. Wu, J. Col. Inter. Sci, 279, 370 (2004)   DOI   ScienceOn
11 B. Otto, Mod. Plast, 24, 149 (1947)
12 Y. Y. Yu, C. Y. Chen, and W. C. Chen, Polymer, 44, 593 (2003)   DOI   ScienceOn
13 Z. H. Huang. and K. Y. Qiu, Polymer, 38, 521 (1997)
14 D. J. David and H. B. Staley, Analytical Chemistry of Polyurethane, Wiley-interscience, New York (1969)
15 C. H. Cho, H. D. Seo, B. H. Min, H. K. Cho, and S. T. Noh, J. Kor. Ind. Eng. Chem, 13, 825 (2002)
16 S. X. Zhou, L. M. Wu, J. Sun, and W. D. Shen, Prog. Org. Coat, 45, 33 (2002)   DOI
17 M. Xiong, B. You, S. Zhou, and L. Wu, Polymer, 45, 2967 (2004)   DOI   ScienceOn
18 T. Ogoshi, H. Itoh, K. M. Kim, and Y. Chujo, Macromolecules, 35, 334 (2002)   DOI   ScienceOn
19 Y. Chen and J. O. Iroh, Chem. Mater, 11, 1218 (1999)
20 S. G. Kim, M. J. Li, M. T. Ramesan, and D. S. Lee, Polymer (korea), 29, 140 (2005)
21 L. Matejka, K. Dusek, J. Plestil, J. Kriz, and F. Lednicky, Polymer, 40, 171 (1998)