431898-06-5

Upstream product

• 431898-05-4 ((2,5-bis((2-ethylhexyl)oxy)-1,4-phenylene)bis(ethyne-2,1-diyl))bis(trimethylsilane) 
• 18908-66-2 3-bromomethylheptane 
• 110126-93-7 1,4-bis((2-ethylhexyl)oxy)benzene 
• 123-31-9 hydroquinone 
• 173428-79-0 1,4-bis((2-ethylhexyl)oxy)-2,5-diiodobenzene 
• 191867-85-3 1,4-dibromo-2,5-bis((2-ethylhexyl)oxy)benzene 
• 14753-51-6 2,5-dibromohydroquinone 

Downstream Products

• 431898-07-6 4,4'-{[2,5-bis(2-ethylhexyloxy)-1,4-phenylene]bis(ethynediyl)}dibenzaldehyde 
• 1220453-49-5 2,2'-{4,4'-[2,5-bis(2-ethylhexyloxy)-1,4-phenylene]bis(ethynediyl)bis(4,1-phenylene)}di-1,3,2-dioxaborolane 
• 1220453-47-3 4,4'-{[2,5-bis(2-ethylhexyloxy)-1,4-phenylene]bis(ethynediyl)}bis(1-iodobenzene) 

Relevant academic research and scientific papers

A hybridized local and charge transfer excited state for solution-processed non-doped green electroluminescence based on oligo(: p -phenyleneethynylene)

We herein report a new highly efficient green emissive hot-exciton molecule, 1,4-bis((4′-diphenylamino-3-cyano-[1,1′-biphenyl]-4-yl)ethynyl)-2,5-bis(2-ethylhexyloxy)benzene (2EHO-TPA-CNPE) that consists of an extended D′-π′-A-π-D-π-A-π′-D′ molecular π-sys

CYANO-DERIVATIZED OLIGONOPHENYLACETYLENE-BASED FLUORESCENT SMALL MOLECULES SUITABLE FOR USE IN ORGANIC LIGHT-EMITTING DIODE APPLICATIONS AND THEIR USE IN ORGANIC LIGHT-EMITTING DIODE APPLICATIONS

The present invention relates to the synthesis of oligonophenylacetylene-based fluorescent π-conjugated small molecules, which are derivatized with group or groups of cyano (-CN) and have the ability to emit light with very sharp emission peaks at differe

A new rod-shaped BODIPY-acetylene molecule for solution-processed semiconducting microribbons in n-channel organic field-effect transistors

BODIPY-based π-conjugated small molecules have been extensively studied in various fields of sensing and biochemical labelling; however, their use in organic optoelectronic applications is very limited. A new solution-processable acceptor-donor-acceptor (

Polytriazole bridged with 2,5-diphenyl-1,3,4-oxadiazole moieties: A highly sensitive and selective fluorescence chemosensor for Ag+

Fluorescent conjugated polytriazoles (FCP 1-4) containing both 2,5-diphenyl-1,3,5-oxadiazole (OXD) and 1,2,3-triazole moieties in the main chain were synthesized from aromatic diazide (1) and dialkynes (2-5) via click polymerization, respectively. In the polymers, OXDs (fluorophores) and triazole rings (generated via CuAAC acting as metal ion ligands) comprise a fluorescent system. The polytriazoles displayed relatively strong emission with quantum yields in the range of 0.20-0.28 at room temperature in DMF. The study on their ion-responsive properties showed that, although all four FCPs have good selectivity for Ag+, the integration of alkoxy side groups (methoxy for FCP 2, hexyloxy for FCP 3 and 2-ethylhexyloxy for FCP 4) to the main chains of the polytriazoles decreased their sensitivity for Ag+via alteration of the polymer aggregation status and electron density of the main chains. Thus FCP 1 is highly sensitive for Ag+, where its Ksv is as high as 1.44 × 105 M-1 and its lowest detection limit is in the ppb range (4.22 × 10-7 M). This study provides an efficient click approach to the synthesis of a novel fluorescence sensor for Ag+ detection, which could expand the application of click polymerization in designing fluorescence sensors based on the triazole unit. This journal is

Fluorescent conjugated polymer nanoparticles by polymerization in miniemulsion

Highly fluorescent conjugated polymer nanoparticles were prepared directly by polymerization in aqueous miniemulsion, employing Glaser coupling polymerization as a suitable step-growth reaction. A 4,4′-dinonyl-2, 2′-bipyridine-modified catalyst was found to be suited for the polymerization in the aqueous heterophase system. Nanoparticles of poly(arylene diethynylenes) (arylene = 2,5-dialkyoxy phenylenes and 9,9′-dihexyl fluorene) with molecular weights in the range of Mn 104 to 105 g mol-1 and with sizes of ≤30 nm, as observed by TEM, result. N,N′-Di(4-ethynylphenyl)-1,7-di[4-(1,1,3,3-tetramethylbutyl) phenoxy]-perylene-3,4:9,10-tetracarboxdiimide or 2,7-diethynylfluorenone was converted completely during the heterophase polymerization to afford colloidally stable nanoparticles of poly(arylene diethynylenes) with 0.1-2 mol % covalently incorporated perylene dye and 2-9 mol % of covalently incorporated fluorenone dye, respectively. Fluorescence spectroscopy of the aqueous dispersions reveals an efficient energy transfer to the dye in the nanoparticles, which enables a variation of the luminescence emission color between red (λem (max.) ca. 650 nm) and the green emission of the nanoparticles without dye.

Side chain effects in hybrid PPV/PPE polymers

The Horner-Wadsworth-Emmons olefination reaction of luminophoric dialdehydes 1 and 2 and bisphosphonates 3 provide high-molecular-weight and thermostable PPV/PPE hybrid polymers 4 and 5 of well-defined general constitutional structure -(CH=CH-Ph-CH=CH-Ph-