Chiral Silica with Preferred-Handed Helical Structure via Chiral Transfer
Journal
JACS Au
Journal Volume
1
Journal Issue
4
Pages
375
Date Issued
2021-04-26
Author(s)
Manabe, Kei
Tsai, Sung-Yu
Kuretani, Satoshi
Kometani, Satoshi
Ando, Katsuyuki
Agata, Yoshihiro
Ohta, Noboru
Chiang, Yeo-Wan
Lin, I-Ming
Fujii, Syuji
Nakamura, Yoshinobu
Chang, Yu-Ning
Nabae, Yuta
Hayakawa, Teruaki
Li, Ming-Chia
Hirai, Tomoyasu
Abstract
A strategy to obtain chiral silica using an achiral stereoregular polymer with polyhedral oligomeric silsesquioxane (POSS) side chains is described herein. The preferred helical conformation of the POSS-containing polymer could be achieved by mixing isotactic polymethacrylate-functionalized POSS (it-PMAPOSS) and a chiral dopant. The array structure of POSS molecules, which are placed along the helical conformation, is memorized even after removing the chiral dopant at high temperatures, leading to a chiral silica compound with exclusive optical activity after calcination.
Subjects
chiral transfer | living anionic polymerization | polyhedral oligomeric silsesquioxane (POSS) | silica | stereoregularity
SDGs
Type
journal article