화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2021년 가을 (10/20 ~ 10/22, 경주컨벤션센터)
권호 46권 2호
발표분야 Virtual Lightning Session
제목 On the Impact of Siloxanated Side Chains on the Properties of Semiconducting Polymers
초록 For several years, semiconducting polymers substituted with siloxane side chains have shown remarkable charge transport properties, without being able to clearly identify its origin. To help clarify this matter, different series of π-conjugated polymers functionalized with either neat-alkylated or siloxane containing side-chains were synthesized and extensively characterized. While electronic molecular properties were little affected by the lateral chain change, the siloxane-functionalized polymers systematically showed enhanced charge carrier mobility values, suggesting the effect of a modified structure and/or morphology. Effectively, an extended X-ray scattering study of bulk materials and thin films evidenced an improved stacking of backbones enhancing the efficiency of conduction pathways. These results were explained in compliance with the intrinsic properties of siloxane. Molecular design rules were specified for the rational substitution of semiconducting polymer side chains.
저자 Benoît Heinrich, Thomas Heiser, Patrick Lévêque, Nicolas Leclerc, Stéphane Méry
소속 CNRS-Université de Strasbourg
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