Polar switching of dipolar molecules confined in submicron- And micron-sized pores in polymer films

Ryosuke Yamamoto; Shigenori Fujikawa; Nobuo Kimizuka

doi:10.1246/cl.190917

Polar switching of dipolar molecules confined in submicron- And micron-sized pores in polymer films

Ryosuke Yamamoto, Shigenori Fujikawa, Nobuo Kimizuka

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

p-Nitroanisole (pNA) confined in submicron- and micron-sized pores in polyimide films shows enhanced dipolar polarization and polar switching characteristics in the liquid state, as revealed by hysteresis in the polarization (P)-electric field (E) curves. They reflect interface-induced orientational polarization of confined pNA molecules, i.e. inversion of molecular orientation depending on the direction of the external electric field. Such an enhanced orientational polarization is not observed for the bulk pNA nor pristine polyimide films, and interactions between the confined pNA molecules and the surface of the pores are indispensable for the polar switching phenomena.

Original language	English
Pages (from-to)	255-259
Number of pages	5
Journal	Chemistry Letters
Volume	49
Issue number	3
DOIs	https://doi.org/10.1246/cl.190917
Publication status	Published - 2020

All Science Journal Classification (ASJC) codes

Chemistry(all)

Access to Document

10.1246/cl.190917

Cite this

@article{dfab3d0acb9c4994ac9eb8729d691708,

title = "Polar switching of dipolar molecules confined in submicron- And micron-sized pores in polymer films",

abstract = "p-Nitroanisole (pNA) confined in submicron- and micron-sized pores in polyimide films shows enhanced dipolar polarization and polar switching characteristics in the liquid state, as revealed by hysteresis in the polarization (P)-electric field (E) curves. They reflect interface-induced orientational polarization of confined pNA molecules, i.e. inversion of molecular orientation depending on the direction of the external electric field. Such an enhanced orientational polarization is not observed for the bulk pNA nor pristine polyimide films, and interactions between the confined pNA molecules and the surface of the pores are indispensable for the polar switching phenomena.",

author = "Ryosuke Yamamoto and Shigenori Fujikawa and Nobuo Kimizuka",

note = "Funding Information: This work was financially supported by JSPS KAKENHI Grant numbers JP25220805, JP16H06513, and the Ogasawara Foundation for the Promotion of Science & Engineering (20182019). We thank Tokyo Ohka Kogyo Co. Ltd. for providing the porous polyimide films. Funding Information: This work was financially supported by JSPS KAKENHI Grant numbers JP25220805, JP16H06513, and the Ogasawara Foundation for the Promotion of Science & Engineering (2018-2019). We thank Tokyo Ohka Kogyo Co. Ltd. for providing the porous polyimide films. Publisher Copyright: {\textcopyright} 2020 The Chemical Society of Japan",

year = "2020",

doi = "10.1246/cl.190917",

language = "English",

volume = "49",

pages = "255--259",

journal = "Chemistry Letters",

issn = "0366-7022",

publisher = "The Chemical Society of Japan",

number = "3",

}

TY - JOUR

T1 - Polar switching of dipolar molecules confined in submicron- And micron-sized pores in polymer films

AU - Yamamoto, Ryosuke

AU - Fujikawa, Shigenori

AU - Kimizuka, Nobuo

N1 - Funding Information: This work was financially supported by JSPS KAKENHI Grant numbers JP25220805, JP16H06513, and the Ogasawara Foundation for the Promotion of Science & Engineering (20182019). We thank Tokyo Ohka Kogyo Co. Ltd. for providing the porous polyimide films. Funding Information: This work was financially supported by JSPS KAKENHI Grant numbers JP25220805, JP16H06513, and the Ogasawara Foundation for the Promotion of Science & Engineering (2018-2019). We thank Tokyo Ohka Kogyo Co. Ltd. for providing the porous polyimide films. Publisher Copyright: © 2020 The Chemical Society of Japan

PY - 2020

Y1 - 2020

N2 - p-Nitroanisole (pNA) confined in submicron- and micron-sized pores in polyimide films shows enhanced dipolar polarization and polar switching characteristics in the liquid state, as revealed by hysteresis in the polarization (P)-electric field (E) curves. They reflect interface-induced orientational polarization of confined pNA molecules, i.e. inversion of molecular orientation depending on the direction of the external electric field. Such an enhanced orientational polarization is not observed for the bulk pNA nor pristine polyimide films, and interactions between the confined pNA molecules and the surface of the pores are indispensable for the polar switching phenomena.

AB - p-Nitroanisole (pNA) confined in submicron- and micron-sized pores in polyimide films shows enhanced dipolar polarization and polar switching characteristics in the liquid state, as revealed by hysteresis in the polarization (P)-electric field (E) curves. They reflect interface-induced orientational polarization of confined pNA molecules, i.e. inversion of molecular orientation depending on the direction of the external electric field. Such an enhanced orientational polarization is not observed for the bulk pNA nor pristine polyimide films, and interactions between the confined pNA molecules and the surface of the pores are indispensable for the polar switching phenomena.

UR - http://www.scopus.com/inward/record.url?scp=85082828828&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85082828828&partnerID=8YFLogxK

U2 - 10.1246/cl.190917

DO - 10.1246/cl.190917

M3 - Article

AN - SCOPUS:85082828828

SN - 0366-7022

VL - 49

SP - 255

EP - 259

JO - Chemistry Letters

JF - Chemistry Letters

IS - 3

ER -

Polar switching of dipolar molecules confined in submicron- And micron-sized pores in polymer films

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this