Premium
When Single‐Site Polymerization Catalysis Meets Chirality: Optical Activity of Stereoregular Polyolefins
Author(s) -
Carpentier JeanFrançois
Publication year - 2007
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200701664
Subject(s) - methylaluminoxane , tacticity , natta , polymerization , polymer chemistry , catalysis , materials science , chirality (physics) , macromolecule , coordination polymerization , degree of polymerization , titanium , polymer science , chemistry , organic chemistry , metallocene , polymer , radical polymerization , composite material , chiral symmetry , physics , biochemistry , quantum mechanics , nambu–jona lasinio model , quark , metallurgy
Ziegler–Natta revival : Enantiomerically pure, isotactic oligo/polystyrenes have been prepared by titanium‐based single‐site catalysis. The optical activity of these polystyrenes was shown to be measurable up to a degree of polymerization of 45, providing a discrete border for the appearance of “cryptochirality” for larger macromolecules. MAO=methylaluminoxane.