| 초록 |
Tetracyclododecene (TCD) and dicyclopentadiene (DCPD) copolymer was synthesized through ring-opening metathesis polymerization (ROMP) using WCl6, triisobutyl aluminium (iso-Bu3Al), and 2-butanol (2-BuOH). The molar ratio of TCD-DCPD/WCl6 was fixed as 500/1 while the optimal molar ratio of ROMP’s catalyst’s components depends on TCD-DCPD compositions. After the polymerization, hydrogenation of ring-opened TCD-DCPD copolymer (p-TCD-DCPD) was conducted using Ni(acac)2 and iso-Bu3Al at 80oC under 600 psig H2. The resulting hydrogenated TCD-DCPD copolymer (H2-p-TCD-DCPD) was characterized using 2D 1H-1H COSY and 2D 1H-13C HSQC NMR spectroscopy. The effect of TCD-DCPD composition over glass transition temperature (Tg) and polydispersity (PDI) were analyzed using DSC and GPC. The effect of hydrogenation over physical properties such as glass transition temperature, thermal stability, and light transmittance was analyzed using DSC, TGA, and UV. |
