Circular Polarization Luminescence of Groove Anchor Driving Optically Active Poly(methyl methacrylate) Stereocomplexes

Ming-Chia Li; Masanao Sato; Fa-Chung Chen; Wei-Tsung Chuang; Tomoyasu Hirai; Atsushi Takahara; Rong-Ming Ho

doi:10.1021/acsmacrolett.2c00529

Circular Polarization Luminescence of Groove Anchor Driving Optically Active Poly(methyl methacrylate) Stereocomplexes

ACS Macro Lett. 2022 Nov 15;11(11):1306-1311. doi: 10.1021/acsmacrolett.2c00529. Epub 2022 Nov 3.

Authors

Ming-Chia Li¹, Masanao Sato², Fa-Chung Chen¹, Wei-Tsung Chuang³, Tomoyasu Hirai⁴, Atsushi Takahara², Rong-Ming Ho⁵

Affiliations

¹ Department of Biological Science and Technology, Center For Intelligent Drug Systems and Smart Bio-devices (IDS2B), National Yang Ming Chiao Tung University, Hsinchu 300, Taiwan, China.
² Institute for Materials Chemistry and Engineering, Kyushu University, Fukuoka 819-0395, Japan.
³ National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan, China.
⁴ Department of Applied Chemistry, Osaka Institute of Technology, Osaka, 535-8585, Japan.
⁵ Department of Chemical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan, China.

PMID: 36326692
DOI: 10.1021/acsmacrolett.2c00529

Abstract

This paper presents a facile method for fabricating a thin-film sample with a high asymmetry value of induced circularly polarized luminescence (iCPL) (|g_lum| = 2.0 × 10^-3). The method involves mixing stereoregular poly(methyl methacrylate) (PMMA) and chiral chromophore (2,2,2-trifluoro-1-(9-anthryl)ethanol (TFAE)) to form a complex with a dynamic helical conformation of poly(methyl methacrylate) (PMMA) associated with TFAE via hydrogen bonding. This dynamic helical conformation can be stabilized by the stereocomplexation of a pair of stereoregular PMMA, where the TFAE is sandwiched between a double-helix isotactic PMMA and single-helix syndiotactic PMMA, resulting in a preferential one-handed helical conformation with a high value of iCPL from self-assembly.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Luminescence*
Molecular Conformation
Polymethyl Methacrylate* / chemistry
Stereoisomerism

Substances

Polymethyl Methacrylate
2,2,2-trifluoroethyl allyl ether