https://scholars.lib.ntu.edu.tw/handle/123456789/637905
標題: | Unraveling the Effect of Stereoisomerism on Mobility-Stretchability Properties of n-Type Semiconducting Polymers with Biobased Epimers as Conjugation Break Spacers | 作者: | Matsuda, Megumi Lin, Chia Yu Sung, Chih Yuan Lin, Yan Cheng WEN-CHANG CHEN Higashihara, Tomoya |
關鍵字: | conjugation breakers | diastereomers | isosorbide | organic field-effect transistor | stretchable conjugated polymers | 公開日期: | 8-十一月-2023 | 卷: | 15 | 期: | 44 | 來源出版物: | ACS Applied Materials and Interfaces | 摘要: | The development of intrinsically stretchable n-type semiconducting polymers has garnered much interest in recent years. In this study, three biobased dianhydrohexitol epimers of isosorbide (ISB), isomannide (IMN), and isoidide (IID), derived from cellulose, were incorporated into the backbone of a naphthalenediimide (NDI)-based n-type semiconducting polymer as conjugation break spacers (CBSs). Accordingly, three polymers were synthesized through the Migita-Kosugi-Stille coupling polymerization with NDI, bithiophene, and CBSs, and the mobility-stretchability properties of these polymers were investigated and compared with those of their analogues with conventional alkyl-based CBSs. Experimental results showed that the different configurations of these epimers in CBSs sufficiently modulate the melt entropies, surface aggregation, crystallographic parameters, chain entanglements, and mobility-stretchability properties. Comparable ductility and edge-on preferred stacking were observed in polymers with endo- or exo-configurations in IMN- and IID-based polymers. By contrast, ISB with endo-/exo-configurations exhibits an excellent chain-realigning capability, a reduced crack density, and a proceeding bimodal orientation under tensile strain. Therefore, the ISB-based polymer exhibits high orthogonal electron mobility retention of (53 and 56)% at 100% strain. This study is one of the few examples where biobased moieties are incorporated into semiconducting polymers as stress-relaxation units. Additionally, this is the first study to report on the effect of stereoisomerism of epimers on the morphology and mobility-stretchability properties of semiconducting polymers. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/637905 | ISSN: | 19448244 | DOI: | 10.1021/acsami.3c09951 |
顯示於: | 化學工程學系 |
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