TY - JOUR
T1 - Novel supramolecular conjugated polyrotaxane as an acid-base controllable optical molecular switch
AU - Shukla, Tarun
AU - Arumugaperumal, Reguram
AU - Raghunath, Putikam
AU - Lin, Ming-Chang
AU - Lin, Chien Min
AU - Lin, Hong-Cheu
PY - 2017/5/1
Y1 - 2017/5/1
N2 - To study the supramolecular interactions of the mechanically interlocked rotaxane pendants with the backbone of two comparable conjugated polymers, axle polymer P1 and polyrotaxane P2 were synthesized by copolymerization of fluorine-based monomer F with phenanthroimidazole (PIZ)-based axle monomer A and rotaxane monomer R, respectively. Prevailing 1H NMR, UV–vis and PL profiles revealed that polyrotaxane P2 showed sensitive and reversible acid-base molecular switching properties via supramolecular interactions in contrast to the other analogous polymer P1. The capability of molecular switching is also proven by computational study. Apparently, the controllable nano self-assembly process of P2 was fulfilled by reversible acid-base molecular switch approaches, where the orthogonal H-bonded polyrotaxane units were converted from bloated form into flake form on protonation.
AB - To study the supramolecular interactions of the mechanically interlocked rotaxane pendants with the backbone of two comparable conjugated polymers, axle polymer P1 and polyrotaxane P2 were synthesized by copolymerization of fluorine-based monomer F with phenanthroimidazole (PIZ)-based axle monomer A and rotaxane monomer R, respectively. Prevailing 1H NMR, UV–vis and PL profiles revealed that polyrotaxane P2 showed sensitive and reversible acid-base molecular switching properties via supramolecular interactions in contrast to the other analogous polymer P1. The capability of molecular switching is also proven by computational study. Apparently, the controllable nano self-assembly process of P2 was fulfilled by reversible acid-base molecular switch approaches, where the orthogonal H-bonded polyrotaxane units were converted from bloated form into flake form on protonation.
KW - Acid-base molecular switch
KW - Computational study
KW - Mechanically interlocked rotaxane
KW - Phenanthroimidazole
KW - Polyrotaxane
UR - http://www.scopus.com/inward/record.url?scp=84998850060&partnerID=8YFLogxK
U2 - 10.1016/j.snb.2016.11.130
DO - 10.1016/j.snb.2016.11.130
M3 - Article
AN - SCOPUS:84998850060
SN - 0925-4005
VL - 243
SP - 84
EP - 95
JO - Sensors and Actuators, B: Chemical
JF - Sensors and Actuators, B: Chemical
ER -