Macromolecular Research

The Polymer Society of Korea (한국고분자학회)
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Synthesis of Poly(1,6-heptadiyne) Derivatives Containing Bulky Substitutents by Metathesis Polymerization

  • Jin, Sung-Ho (Department of Chemistry Education, Pusan National University) ;
  • Jin, Jeong-Yi (Department of Chemistry Education, Pusan National University) ;
  • Kim, Young-Inn (Department of Chemistry Education, Pusan National University) ;
  • Park, Dong-Kyu (Department of Chemistry, Kyungsung University) ;
  • Gal, Yeong-Soon (Polymer Chemistry Lab., Kyungil University)
  • Published : 2003.12.01
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Abstract

Poly(l,6-heptadiyne) derivatives with phenoxy and 3,7-dimethyloctyloxyphenoxy substituents were synthesized using metathesis polymerization. Polymerizations using MoCl$\sub$5/ as the sole catalyst gave high yields and the resulting polymers were completely soluble in organic solvents. The polymers' structures and thermal properties were characterized using NMR and UV-Vis spectroscopy, as well as with TGA and DSC thermograms. From the analysis of the high-resolution $\^$13/C-NMR spectra, we was found that these polymers contain six-membered rings. The number-average molecular weights and polydispersities of the polymers were ca. 7.0∼20 ${\times}$ 10$^3$ and 3.1∼5.8, respectively. The glass transition temperatures of the polymers were found to be in the range 91∼159$^{\circ}C$.

Keywords

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