Tripathi, Ayushi published the artcileOptimization of Thermoelectric Properties of Polymers by Incorporating Oligoethylene Glycol Side Chains and Sequential Solution Doping with Preannealing Treatment, SDS of cas: 111865-47-5, the publication is Macromolecules (Washington, DC, United States) (2020), 53(16), 7063-7072, database is CAplus.
Two types of p-type thermoelec. (TE) polymers with alkyl (PCPDTSBT) and oligoethylene glycol (OEG) side chains (PCPDTSBT-A) on an sp2-hybridized olefinic bis(alkylsulfanyl)methylene-substituted cyclopentadithiophene backbone are synthesized. Interestingly, the OEG-substituted polymer, PCPDTSBT-A, exhibits significant self-doping compared to PCPDTSBT, where the polaron d. of the former is 2.3 × 1016 mm-3 (vs. 7.9 × 1014 mm-3 for PCPDTSBT) without external doping. Changing the side chains also induces a completely different polymer chain orientation in the PCPDTSBT-A (face-on) and PCPDTSBT (edge-on) films. The effect of doping with 2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane (F4TCNQ) on the morphol. and TE properties of the polymers with different side chains is studied. Sequential solution doping (SQD) is performed by overcoating the preannealed polymer films with F4TCNQ solution, which affords highly effective doping without disrupting the morphol. of the crystalline films, especially for PCPDTSBT-A with OEG side chains. Resulting from the synergistic effect of the OEG side chains and SQD, PCPDTSBT-A exhibits remarkably improved elec. conductivity (53.8 S cm-1) with a higher power factor (40.4μW m-1 K-2), compared to PCPDTSBT, for which the maximum elec. conductivity is 1.4 S cm-1 and the power factor is 1.8μW m-1 K-2. In addition, the transport coefficient of PCPDTSBT-A, determined by applying the Kang-Snyder model (2.40 × 10-2 S cm-1), is superior to that of PCPDTSBT (3.59 × 10-3 S cm-1), thereby showing the excellence of the developed strategy for improving the performance of TE polymers.
Macromolecules (Washington, DC, United States) published new progress about 111865-47-5. 111865-47-5 belongs to bromides-buliding-blocks, auxiliary class Benzenes, name is Mono(N,N,N-trimethyl-1-phenylmethanaminium) tribromide, and the molecular formula is C16H14O6, SDS of cas: 111865-47-5.
Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary