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Synthesis and Characterization of Aliphatic Hyperbranched Polyesters  

Kim Jang-Yup (Department of Chemical Environmental Engineering Soongsil University)
Ok Chang-Yul (Department of Chemical Environmental Engineering Soongsil University)
Lee Sang-Won (Department of Chemical Environmental Engineering Soongsil University)
Huh Wansoo (Department of Chemical Environmental Engineering Soongsil University)
Publication Information
Polymer(Korea) / v.29, no.6, 2005 , pp. 575-580 More about this Journal
Abstract
The hydroxy terminated aliphatic hyperbranched polyesters having different generations were synthesized by using melt polycondensation procedure. Then, the terminal groups of hyperbranched polyesters were modified by using acryloyl chloride and characterized by $\^{1}H$-NMR and GPC techniques. As a result of the modification of terminal groups for hyperbranched polyesters, the phase of the polymers were changed from sticky solid to high viscous liquid indicating that the glass transition temperatures of modified hyperbranched polyesters were lower than the original one. The thermal stabilities of hydroxy terminated hyperbranched polyesters were higher than those of terminal group-modified polymers.
Keywords
synthesis; hyperbranched; polyester; thermal properties; generations;
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1 D. Parker and W. J. Feast, Macromolecules, 34, 5792 (2001)   DOI   ScienceOn
2 PO 100-1 Anayltical Method, 'Determination of Hydroxy Number and Hydroxy Content' , Perstorp Specialty Chemicals (2000)
3 K. L. Wooley, C. J. Hawker, R. Lee, and J. M. J. Frechet, Polym. J., 2, 187 (1994)
4 Y. H. Kim and O. W. Webster, Macromolecules, 27, 1968 (1994)   DOI   ScienceOn
5 Y. H. Kim and O. W. Webster, Macromolecules, 25, 5561 (1992)   DOI
6 K. L. Wooley, C. J. Hawker, J. M. Pochan, and J. M. J. Frechet, Macromolecules, 26, 1514 (1993)   DOI   ScienceOn
7 Q. Teng, T. Liming, F. Zhiwei, T. Xinlin, L. Yi, L. Deshan, and Y. Wantai, Polym. Adv. Technol., 15, 65 (2004)   DOI   ScienceOn
8 A. Sidorenko, X. W. Zhai, S. Peleshanko, A. Greco, V. V. Shevchenko, and V. V. Tsukruk, Langmuir, 17, 5924 (2001)   DOI   ScienceOn
9 R. Mezzenga and J. A. E. Manson, J. Mater. Sci., 36, 4883 (2001)   DOI   ScienceOn
10 W. J. Feast and N. M. J. Stainton, Mater. Chem., 5, 404 (1995)   DOI   ScienceOn
11 E. Malmstrom, M. Johansson, and A. Hult, Macromolecules, 28, 1698 (1995)   DOI   ScienceOn
12 R. Pruthtikul, M. M. Coleman, P. C. Painter, and N. B. Tan, Macromolecules, 34, 4145 (2001)   DOI   ScienceOn
13 C. J. Hawker, R. Lee, and J. M. J. Frechet, J. Am. Chem. Soc., 113, 4583 (1991)   DOI
14 K. L. Wooley, J. M. J. Frechet, and C. J. Hawker, Polymer, 35,4489 (1994)   DOI   ScienceOn