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Noncovalent Chiral Functionalization of Graphene with Optically Active Helical Polymers
Author(s) -
Ren Chonglei,
Chen Yu,
Zhang Haiyang,
Deng Jianping
Publication year - 2013
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.201300342
Subject(s) - graphene , surface modification , materials science , circular dichroism , polymer , polyacetylene , raman spectroscopy , pyrene , fourier transform infrared spectroscopy , polymer chemistry , covalent bond , chemical engineering , photochemistry , nanotechnology , organic chemistry , chemistry , crystallography , composite material , physics , optics , engineering
Optically active helical substituted (co)polyacetylenes containing pendent pyrene groups are prepared and then noncovalently immobilized on graphene via π – π interactions. The resulting graphene composite is characterized by XRD, FTIR, Raman, circular dichroism, UV‐vis absorption, TEM, TGA, and fluorescent spectroscopy techniques. The helical polyacetylene endows graphene with the desired optical activity. Also interestingly, the dispersibility of the functionalized graphene in tetrahydrofuran is remarkably improved due to the presence of the helical polymer chains. The present methodology opens new opportunities and serves as a versatile platform toward preparing novel graphene‐based materials.