Premium
Optically Active “Stereocomplexes” of Isotactic Poly(methyl methacrylates) with Main‐Chain Chirality
Author(s) -
Wulff Günter,
Petzoldt Joachim
Publication year - 1991
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.199108491
Subject(s) - tacticity , superstructure , chirality (physics) , optical rotation , polymer , methacrylate , materials science , chain (unit) , polymer chemistry , methyl methacrylate , optically active , block (permutation group theory) , chemistry , copolymer , organic chemistry , composite material , physics , geometry , mathematics , quantum mechanics , astronomy , nambu–jona lasinio model , polymerization , thermodynamics , quark , chiral symmetry breaking
Even a large difference between the ends of the chain of isotactic polymers is not enough to induce significant optical activity resulting from the configuration of the main chain. This can be achieved only with a chiral superstructure. In this way the optical rotation of the block polymer 1 (R = CH 3 ) is increased by a factor 10 by complexation with achiral, syndiotactic poly(methyl methacrylate). This method is therefore also suitable for the detection of helical conformations in solution.