Series of propylene (C3) and hexylene (C6)-linked tripod-shaped polyhedral octasilsesquioxane (POSS) derivatives were prepared corner-opening type POSS (COPOSS) with completely condensed POSSs (CC-POSSs). The annealed cast films of the tripodal POSSs were optically transparent, except those consisted of the phenylsubstituted CC-POSS, which were rather turbid. The tripodal POSSs showed endothermic peaks corresponding to melting (Tm) and suggest that including the phenyl-substituted CO-POSS unit reduced Tms compared with the isobutyl-substituted CO-POSS.
- Mayu Nagao
- Hiroaki Imoto
- Kensuke Naka
