Eckstein, Brian J.’s team published research in Macromolecules (Washington, DC, United States) in 50 | CAS: 303734-52-3

Macromolecules (Washington, DC, United States) published new progress about 303734-52-3. 303734-52-3 belongs to bromides-buliding-blocks, auxiliary class Thiophene,Bromide, name is 2-Bromo-3-(2-ethylhexyl)thiophene, and the molecular formula is C12H19BrS, Application In Synthesis of 303734-52-3.

Eckstein, Brian J. published the artcileButa-1,3-diyne-Based π-Conjugated Polymers for Organic Transistors and Solar Cells, Application In Synthesis of 303734-52-3, the publication is Macromolecules (Washington, DC, United States) (2017), 50(4), 1430-1441, database is CAplus.

We report the synthesis and characterization of new alkyl-substituted 1,4-di(thiophen-2-yl)buta-1,3-diyne (R-DTB) donor building blocks, based on the -CC-CC- conjugative pathway, and their incorporation with thienyl-diketopyrrolopyrrole (R’-TDPP) acceptor units into π-conjugated PTDPP-DTB polymers (P1-P4). The solubility of the new polymers strongly depends on the DTB and DPP solubilizing (R and R’, resp.) substituents. Thus, solution processable and high mol. weight PDPP-DTB polymers are achieved for P3 (R = n-C12H25, R’ = 2-butyloctyl) and P4 (R = 2-ethylhexyl, R’ = 2-butyloctyl). Systematic studies of P3 and P4 physicochem. properties are carried using optical spectroscopy, cyclic voltammetry, and thermal anal., revealing characteristic features of the dialkynyl motif. For the first time, optoelectronic devices (OFETs, OPVs) are fabricated with 1,3-butadiyne containing organic semiconductors. OFET hole mobilities and record OPV power conversion efficiencies for acetylenic organic materials approach 0.1 cm2/(V s) and 4% resp., which can be understood from detailed thin-film morphol. and microstructural characterization using AFM, TEM, x-ray diffraction, and GIWAXS methodologies. Importantly, DTB-based polymers (P3 and P4) exhibit, in addition to stabilization of frontier MOs and to -CC-CC- relief of steric torsions, discrete morphol. pliability through thermal annealing and processing additives. The advantageous materials properties and preliminary device performance reported here demonstrate the promise of 1,3-butadiyne-based semiconducting polymers.

Macromolecules (Washington, DC, United States) published new progress about 303734-52-3. 303734-52-3 belongs to bromides-buliding-blocks, auxiliary class Thiophene,Bromide, name is 2-Bromo-3-(2-ethylhexyl)thiophene, and the molecular formula is C12H19BrS, Application In Synthesis of 303734-52-3.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary