Elastomers and Composites

The Rubber Society of Korea (한국고무학회)
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Preparation of Novel Quaternary Plastomers with Extremely Low Glass Transition Temperature

  • Kim, Jin Hoon (Department of Human and Culture Convergence Technology R&BD Group, Korea Institute of Industrial Technology (KITECH)) ;
  • Kim, Jung Soo (Department of Human and Culture Convergence Technology R&BD Group, Korea Institute of Industrial Technology (KITECH)) ;
  • Kim, Min Seong (Department of Human and Culture Convergence Technology R&BD Group, Korea Institute of Industrial Technology (KITECH)) ;
  • Kim, Ki Bum (SR Technopack Co., Ltd.) ;
  • Yang, Hong Joo (SR Technopack Co., Ltd.) ;
  • Ha, Sung Chul (SR Technopack Co., Ltd.) ;
  • Chang, Young-Wook (Department of Fusion Chemical Engineering, Hanyang University) ;
  • Kim, Dong Hyun (Department of Human and Culture Convergence Technology R&BD Group, Korea Institute of Industrial Technology (KITECH))
  • Received : 2016.07.14
  • Accepted : 2016.08.05
  • Published : 2016.09.30
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Abstract

In this study, novel quaternary plastomers consisting of ethylene, 1-hexene, high ${\alpha}$-olefin, and divinylbenzene were prepared using Zr metallocene catalyst, borate type cocatalyst, and tri-isobutylaluminium. The molar ratio changes of 1-hexene and high ${\alpha}$-olefin (1-octene, 1-decene, and 1-dodecene) had an effect on the properties of the quaternary plastomers. The structure of the quaternary plastomers was characterized using $^1H$ NMR. Molecular weight properties, crystallinity, and thermal properties of the plastomers were determined by GPC, WAXS, and DMA, respectively. Compared with the terpolymers prepared in our previous study, molecular weight and molecular weight distribution of the quaternary polymers were very similar, whereas glass transition temperature ($T_g$) was very low. Also, hardness and tensile properties of the quaternary plastomers were measured.

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References

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