Fiber-regeneration reaction field polymerization (FRRP) for preparation of polyaniline composites

ABSTRACT

We propose fiber-regeneration reaction field polymerization (FRRP). In this study, we were able to create PANI composites with electrical conductivity that penetrated the fiber’s surface through to the interior of the fiber via fiber regeneration processes. This is referred to as fiber-regeneration reaction field polymerization (FRRP). The resulting Rayon/PANI composite was characterized via infrared absorption (IR)and reflection spectroscopic methods. Additionally, analysis was conducted using synchrotron X-ray diffraction measurements, scanning electron microscopy (SEM), and a conductivity meter. The composite’s magnetic properties were measured via electron spin resonance (ESR) analysis and superconducting quantum interference device (SQUID) magnetometry. Rayon/PANI composite shows excellent conductivity. Applications for the thermistor devices and the textile electrochemical transistors were examined.

Graphical abstract

KEYWORDS:

• Conductive polymers
• polyaniline
• magnetic properties
• synchrotron XRD

Acknowledgments

A part of this work was supported by NIMS microstructural characterization platform as a program of “Nanotechnology Platform” of the Ministry of Education. Synchrotron XRD measurements were performed under the approval of the Photon Factory Program Advisory Committee (Proposal No. 2019G005 and 2021PF-G016).

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Notes on contributors

Kyoka Komaba

Kyoka Komaba is currently PhD student in the Goto group (University of Tsukuba, Japan)

Reiji Kumai

Reiji Kumai received his Ph.D. degree from the University of Tokyo in 1995.   He was a research scientist at the Joint Research Center of Atom Technology (1995 – 1999) and joined the National Institute of Advanced Interdisciplinary Research (1999 – 2001) as a researcher. In 2001, his institute was reorganized as National Institute of Advanced Industrial Science and Technology (AIST).  In 2011, he moved to Institute of Material Structure Science, High Energy Accelerator Research Organization (KEK) as a professor.  His research is now focused on the structural science of condensed matter by using quantum beams.

Hiromasa Goto

Hiromasa Goto received his PhD degree with a focus on liquid crystalline conjugated polymer from University of Tsukuba under supervision of Prof.Hideki Shirakawa (2000 Nobel Prize laureate). Goto has continued research on polymer liquid crystals and synthetic metals. In 1994, he proposed an idea of employment of chiral dopants to achiral nematic liquid crystal for construction of liquid crystal chemical asymmetric reaction field. Based on this, he has developed asymmetric electro-polymerization, and asymmetric liquid crystal chemical polymerization.