Intrinsically stretchable naphthalenediimide-bithiophene conjugated statistical terpolymers using branched conjugation break spacers for field-effect transistors was written by Lin, Yan-Cheng;Matsuda, Megumi;Sato, Kei-ichiro;Chen, Chun-Kai;Yang, Wei-Chen;Chueh, Chu-Chen;Higashihara, Tomoya;Chen, Wen-Chang. And the article was included in Polymer Chemistry in 2021.Computed Properties of C9H20O2 The following contents are mentioned in the article:
The development of conjugated polymers through the statistical terpolymn. of conjugation break spacers (CBSs) has received great attention because of their synergistic potential in enhancing fracture strain and tensile strength. In this study, a series of bulky and branched CBSs with ester functional groups and di-Me (P1), methyl/propyl (P2), ethyl/butyl (P3), and di-Bu (P4) alkyl groups were incorporated into naphthalenediimide-bithiophene-based conjugated polymers through statistical terpolymn. Morphol. studies, including at. force microscopy (AFM) and grazing incidence X-ray diffraction (GIXD) studies, were applied to pristine and stretched polymer films to decipher the structure-stretchability relationship; further, their mobility-stretchability relationship was investigated by studying their field-effect transistor (FET) characteristics. We found that polymers with bulky and branched CBSs exhibit reduced backbone rigidity, allowing polymer chains to entangle more easily than those of stiffer polymers with similar mol. weights Therefore, the polymer film exhibits a more uniform load distribution throughout the channel layer, and the branched CBSs serve as lubricants that deter crack propagation during deformation. Consequently, P4 with sym. extended alkyl groups shows good ductility and mobility-stretchability properties, with orthogonal μe,‖/μe,⊥ retention of approx. 20-30% with 60% strain and 30-40% after 400 stretching-releasing cycles with 60% strain. Our results indicated that statistical terpolymn. with branched CBSs is a versatile and effective methodol. for controlling orientational and stacking patterns to achieve good mobility-stretchability properties in conjugated polymers. This study involved multiple reactions and reactants, such as 2-Butyl-2-ethylpropane-1,3-diol (cas: 115-84-4Computed Properties of C9H20O2).
2-Butyl-2-ethylpropane-1,3-diol (cas: 115-84-4) belongs to alcohols. A strong base can deprotonate an alcohol to yield an alkoxide ion (R―O−). For example, sodamide (NaNH2), a very strong base, abstracts the hydrogen atom of an alcohol. Converting an alcohol to an alkene requires removal of the hydroxyl group and a hydrogen atom on the neighbouring carbon atom. Dehydrations are most commonly carried out by warming the alcohol in the presence of a strong dehydrating acid, such as concentrated sulfuric acid.Computed Properties of C9H20O2
Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts