Light driven asymmetric polymerization: an approach for tele-control reaction | Zendy

Hiromasa Goto | Zendy; Kohsuke Kawabata | Zendy

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Light driven asymmetric polymerization: an approach for tele-control reaction

Author(s) -

Hiromasa Goto,

Kohsuke Kawabata

Publication year - 2011

Publication title -

polymer chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.403

H-Index - 117

eISSN - 1759-9962

pISSN - 1759-9954

DOI - 10.1039/c0py00396d

Subject(s) - polymerization , electrolyte , photochemistry , irradiation , liquid crystal , chemistry , materials science , chemical engineering , polymer chemistry , optoelectronics , organic chemistry , polymer , physics , engineering , electrode , nuclear physics

Chiroptical activity-tunable electro-polymerization is carried out in liquid crystal (LC) electrolyte solution under irradiation by UV or visible (Vis) light. The LC electrolyte prepared in this study undergoes photo-induced phase transition through trans–cis isomerization of an azobenzene-based chiral photo-isomerization dopant in the LC electrolyte solution. The trans–cis isomerization of the dopant induced by UV light changes the structural chirality of the cholesteric LC electrolyte solution, which allows chiroptical activity tuning under the polymerization conditions. The results demonstrate realization of light-commandable asymmetric polymerization through change in a chiral environment for the electro-polymerization reaction. Note that the chiral polymer thus synthesized shows redox (electrochemical doping/dedoping)-driven change in chiroptical activity. This method can be used to induce light-driven asymmetric chemical reactions

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