Mixed Alkyl- and Alkoxy-Substituted Poly[(phenylene ethynylene)-alt-(phenylene vinylene)] Hybrid Polymers: Synthesis and Photophysical Properties

2004 ◽  
Vol 205 (15) ◽  
pp. 2105-2115 ◽  
Author(s):  
Daniel Ayuk Mbi Egbe ◽  
Stephan Sell ◽  
Christoph Ulbricht ◽  
Eckhard Birckner ◽  
Ulrich-Walter Grummt
Keyword(s):  
Photophysical Properties ◽  
Phenylene Vinylene ◽  
Phenylene Ethynylene ◽  
Hybrid Polymers

Naphthalimide-containing conjugated polyelectrolytes with different chain configurations

2019 ◽  
Vol 17 (10) ◽  
pp. 2635-2639 ◽  
Author(s):  
Yu Chen ◽  
Ying Tan ◽  
Chunyan Tan ◽  
Yunpeng Lu ◽  
Yuzong Chen ◽  
...  
Keyword(s):  
Polymer Chain ◽  
Photophysical Properties ◽  
Phenylene Ethynylene ◽  
Conjugated Polyelectrolytes

Different polymer chain configurations along the main chains of poly(naphthalimide and phenylene ethynylene)s lead to dramatic differences in polymer conformations and photophysical properties.

Synthesis and Photophysical Properties of a Hyperbranched Trimethylsilyl Substituted Poly(phenylene vinylene) Derivative

2020 ◽  
Vol 20 (8) ◽  
pp. 4990-4993
Author(s):  
Kyeongmin Kim ◽  
Taek Ahn
Keyword(s):  
Absorption Maximum ◽  
Photophysical Properties ◽  
Phenylene Vinylene ◽  
Excimer Emission ◽  
Good Thermal Stability ◽  
Long Wavelength ◽  
Good Solubility ◽  
Wavelength Emission ◽  
Linear Poly ◽  
Blue Photoluminescence

A novel trimethylsilyl substituted hyperbranched conjugated poly(phenylene vinylene) (Hyper-PBTMS-PPV) was synthesized through the Wittig polycondensation polymerization. Hyper-PBTMSPPV has good solubility in common organic solvents and showed good thermal stability up to 402 °C with less than 5 wt% weight loss. The photophysical properties of Hyper-PBTMS-PPV film are investigated and compared with trimethylsilyl-containing linear poly(1,4-phenylene vinylene) (Linear-PBTMS-PPV). An absorption maximum of Hyper-PBTMS-PPV film was determined at 335 nm which was far blue-shifted than that of Linear-PBTMS-PPV (380 nm). Hyper-PBTMS-PPV film showed blue photoluminescence (PL) peak at 449 nm. In addition, Hyper-PBTMS-PPV film exhibited almost no long wavelength emission peaks even the film was annealed at 120 °C for 30 min in air condition. High PL efficiency (Φfilm = 0.80) and no aggregate or excimer emission of Hyper-PBTMS-PPV film are due to the inhibition of intramolecular or intermolecular interaction by the introduction of the hyperbranched network into the trimethylsilyl-containing poly(phenylene vinylene) backbone.

Photophysical Properties of Oligo­(phenylene ethynylene) Iridium(III) Complexes Functionalized with Metal-Anchoring Groups

2016 ◽  
Vol 2016 (12) ◽  
pp. 1851-1859 ◽  
Author(s):  
Julia Ponce ◽  
Juan Aragó ◽  
Ignacio Vayá ◽  
Jorge Gómez Magenti ◽  
Sergio Tatay ◽  
...  
Keyword(s):  
Photophysical Properties ◽  
Phenylene Ethynylene ◽  
Anchoring Groups

Effect of Varying Thiophene Units on Charge-Transport and Photovoltaic Properties of Poly(phenylene ethynylene)-alt-poly(phenylene vinylene) Polymers

2014 ◽  
Vol 215 (15) ◽  
pp. 1473-1484 ◽  
Author(s):  
Getachew Adam ◽  
Teketel Yohannes ◽  
Matthew White ◽  
Alberto Montaigne ◽  
Christoph Ulbricht ◽  
...  
Keyword(s):  
Charge Transport ◽  
Phenylene Vinylene ◽  
Phenylene Ethynylene ◽  
Photovoltaic Properties

scholarly journals Thioalkyl- and Sulfone-Substituted Poly(p-Phenylene Vinylene)s

2018 ◽  
Author(s):  
Martina Rimmele ◽  
Klaus Ableidinger ◽  
Adam V. Marsh ◽  
Nathan J. Cheetham ◽  
M. Josef Taublaender ◽  
...  
Keyword(s):  
Molecular Weight ◽  
High Molecular Weight ◽  
Low Cost ◽  
Photophysical Properties ◽  
Quantum Yields ◽  
Phenylene Vinylene ◽  
Structural Variations ◽  
Interesting Class ◽  
New Applications ◽  
Exceptional Stability

Poly(p-phenylene vinylene)s (PPVs) have been studied for decades, but research on this interesting class of conjugated polymers is far from being completed. New applications like in bioimaging keep emerging and even simple structural variations are still waiting to be explored. Surprisingly, not even dithioalkyl-substituted PPVs (S-PPVs) have been reported in the peer-reviewed literature, although the corresponding dialkoxy-substituted PPVs (O-PPVs) like MEH-PPV or MDMO-PPV are most frequently used and although thioalkyl substituents can improve the material properties significantly. We herein report the development of a highly efficient, scalable two-step synthesis of Gilch monomers for S-PPVs starting from low-cost 1,4-diiodobenzene. A low-temperature polymerization protocol has been developed for these monomers, affording high-molecular weight S-PPVs in excellent yields. The thermal, electrochemical, and photophysical properties of S-PPVs are reported to highlight the potential of these polymers. Furthermore, treatment with dimethyldioxirane is demonstrated to result in rapid conversion into sulfone-substituted PPVs (SO<sub>2</sub>-PPVs), introducing a route to high-molecular weight SO<sub>2</sub>-PPVs with exceptional stability and solid-state photoluminescence quantum yields of up to 0.46.

Influence of the Conjugation Pattern on the Photophysical Properties of Alkoxy-Substituted PE/PV Hybrid Polymers

2003 ◽  
Vol 36 (25) ◽  
pp. 9303-9312 ◽  
Author(s):  
Daniel Ayuk Mbi Egbe ◽  
Cornelia Bader ◽  
Elisabeth Klemm ◽  
Liming Ding ◽  
Frank E. Karasz ◽  
...  
Keyword(s):  
Photophysical Properties ◽  
Hybrid Polymers
Sign in / Sign up

Export Citation Format

Share Document