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Stereocomplexed Poly(Limonene Carbonate): A Unique Example of the Cocrystallization of Amorphous Enantiomeric Polymers
Author(s) -
Auriemma Finizia,
De Rosa Claudio,
Di Caprio Maria Rosaria,
Di Girolamo Rocco,
Ellis W. Chadwick,
Coates Geoffrey W.
Publication year - 2015
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201410211
Subject(s) - enantiopure drug , enantiomer , steric effects , polymer , copolymer , amorphous solid , crystallinity , carbonate , materials science , chemistry , limonene , polymer chemistry , crystallography , organic chemistry , enantioselective synthesis , catalysis , chromatography , essential oil
We report the cocrystallization of the regio‐ and stereoregular chiral copolymer poly(limonene carbonate). To the best of our knowledge, this marks the first example of an amorphous, enantiomerically pure polymer that becomes crystalline upon stereocomplexation with its complementary enantiomer. By analyzing X‐ray powder diffraction data, we propose a packing model in which sheets of enantiopure chains interdigitate with layers of the opposite enantiomer, forming a “steric zipper”.