@article{67dcd600a04440f58eaca136afae4619,
title = "Extremely Soft, Conductive, and Transparent Ionic Gels by 3D Optical Printing",
abstract = "A series of 3D printable multifunctional ionic gels (IGs) are developed incorporating ionic liquid (IL) in the thiol–ene network of thiol-based end-crosslinker and acrylate monomers. The resulted gels, termed as thiol-ionic gels (T-IGs), are highly transparent and very soft with IL content of 70–85 wt%. The mechanical and conductive properties of the T-IGs are found to be largely dependent on the IL content, end-crosslinker functionalities, and chain-length of monomers. Progression of ionic conductivity is observed with an increase in IL content and conductivity as high as 5.40 mS cm−1 is attained for longer acrylate group containing T-IGs at room temperature, while further increase is observed at elevated temperature. T-IGs in all systems are found to exhibit superior thermal stability. Three-dimensional fabrication of these functional T-IGs is achieved by optical 3D printing process with microscale resolution in facile steps.",
keywords = "3D printing, ionic liquids, multifunctional ionic gels, thiol–ene reaction",
author = "Kumkum Ahmed and Naofumi Naga and Masaru Kawakami and Hidemitsu Furukawa",
note = "Funding Information: This study was partly supported by the Grant-in-Aid for Scientific Research (Category A, Project No. 17H01224, etc.) from the Japan Society for the Promotion of Science (JSPS), the Center Of Innovation (COI) program from the Japan Science and Technology Agency (JST), the Strategic Innovation Creation Project (SIP) from the New Energy and Industrial Technology Development Organization (NEDO) of Japan, and the Program on Open Innovation Platform with Enterprises, Research Institute and Academia (OPERA) from the JST. K.A. is supported by JSPS fellowship for young scientist in DC1 category. The authors acknowledge the contribution of Mr. Kyuichiro Takamatsu (technical assistance) during 3D printing. Publisher Copyright: {\textcopyright} 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim",
year = "2018",
month = dec,
doi = "10.1002/macp.201800216",
language = "English",
volume = "219",
journal = "Macromolecular Chemistry and Physics",
issn = "1022-1352",
publisher = "Wiley-VCH Verlag",
number = "24",
}