Enantioseparation of Doubly Functionalized Polar Norbornenes by HPLC and Their Ruthenium-Catalyzed Ring-Opening Metathesis Polymerization
Resource
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, 48(2), 485-491
Journal
Journal of Polymer Science Part A Polymer Chemistry
Pages
485-491
Date Issued
2010
Date
2010
Author(s)
Nishihara, Yasushi
Doi, Yukiko
Izawa, Seisuke
Li, Horng-Yi
Inoue, Yoshiaki
Kojima, Masaaki
Chen, Jwu-Ting
Takagi, Kentaro
Abstract
A study was conducted to demonstrate enantioseparation of exo-2,3-disubstituted norbornene 1 and the subsequent Ru-catalyzed living ROMP of the obtained optically active norbornene derivatives. The resulting polymers were characterized with various spectra, such as 1H and 13C{H} NMR, UV-vis, and circular dichroism (CD). The influence of the microstructure of the main chain of the prepared polynorbornenes on the optical behavior was discussed, based on polynorbornene backbones. It was observed that the microstructure of polynorbornenes prepared by ROMP depended the relationship between adjacent chain units. The exo-2,3-disubstituted polynorbornene main chain consisted of up to eight different relationships between two units.
Type
journal article
File(s)![Thumbnail Image]()
Loading...
Name
413.pdf
Size
23.21 KB
Format
Adobe PDF
Checksum
(MD5):ad552c7f8a13091937fe5eb97a02a482