Thermal graft copolymerization of 4-vinyl pyridine on polyimide to improve adhesion to copper

Chan‐Park, Mary B.; Tan, Shiro

doi:10.1016/s0143-7496(02)00057-x

Cited by 21 publications

(7 citation statements)

References 17 publications

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“…The vinylpyridine monomer has been identified as an adhesion promoting agent for metal-polymer interfaces due to the strong interaction of the pyridine functional group [21,22]. In the work carried out by Huang et al [8], mentioned above, it is also found that the addition of polystyrene to the blend of PCBM and the low molecular weight donor improves the adhesion.…”

Section: Resultsmentioning

confidence: 99%

“…Previous reports have identified the poor interface adhesion between the organic active layer and the contacts [ 20 ], when evaluating all the component interfaces in a photovoltaic device, as a limiting performance factor. The vinylpyridine monomer has been identified as an adhesion promoting agent for metal-polymer interfaces due to the strong interaction of the pyridine functional group [ 21 , 22 ]. In the work carried out by Huang et al [ 8 ], mentioned above, it is also found that the addition of polystyrene to the blend of PCBM and the low molecular weight donor improves the adhesion.…”

Section: Resultsmentioning

confidence: 99%

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Improving the Efficiency of Organic Solar Cells upon Addition of Polyvinylpyridine

et al. 2014

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We report on the efficiency improvement of organic solar cells (OPVs) based on the low energy gap polyfluorene derivative, APFO-3, and the soluble C60 fullerene PCBM, upon addition of a residual amount of poly (4-vinylpyridine) (PVP). We find that the addition of 1% by weight of PVP with respect to the APFO-3 content leads to an increase of efficiency from 2.4% to 2.9%. Modifications in the phase separation details of the active layer were investigated as a possible origin of the efficiency increase. At high concentrations of PVP, the blend morphology is radically altered as observed by Atomic Force Microscopy. Although the use of low molecular weight additives is a routine method to improve OPVs efficiency, this report shows that inert polymers, in terms of optical and charge transport properties, may also improve the performance of polymer-based solar cells.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Improving the Efficiency of Organic Solar Cells upon Addition of Polyvinylpyridine

et al. 2014

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“…[11][12][13] Recently, the introducing of pyridine group and its derivatives into polymer to increase thermal stability of polymers has attracted some research efforts. [14][15][16][17][18] Pyridine is an electron-rich aromatic heterocycle, with a localized lone pair of electrons in sp 2 orbital on the nitrogen atom. The pyridinic polymers can increase electron affinity to improve electron-transporting properties and offer the possibility of protonation or alkylation of the lone pair electrons as a way of modifying their properties.…”

Section: Introductionmentioning

confidence: 99%

Novel heterocyclic semi-aromatic polyamides: synthesis and characterization

Nazari

Shabanian

2013

Designed Monomers and Polymers

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Novel heterocyclic aliphatic-aromatic polyamides (PAs) with enhanced flame retardancy, thermal stability, and solubility in organic solvents were synthesized from a polycondensation reaction of 4-aryl-2,6-bis(4-aminophenyl)pyridine 4a-c with adipic acid 5. Diamine monomers 4a-c containing a pyridine ring bearing different kinds of aromatic type pendant groups on its 4-position were synthesized and characterized by FTIR and NMR spectroscopy. The resulting PAs were characterized by Fourier transform infrared spectra, nuclear magnetic resonance ( 1 H NMR), size exclusion chromatography, thermogravimetric analysis, differential scanning calorimetric, and microscale combustion calorimeter. The polymers showed good flame retardancy, thermal stability, and very good solubility in polar aprotic solvents. In the presence of bromide, PA 6c showed good flame retardancy, reflecting the decrease in heat release rate and the total heat release while the char yield of the PA was higher than two other polymers.

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“…These aromatic polyimides have excellent thermal stability, mechanical, electrical and solventresistance properties [1][2][3]. Therefore, they are being used in applications such as automobile and aircraft parts, electronic packaging, films, adhesives, and matrix materials for composites [4][5][6][7]. However, many polyimides are insoluble in common organic solvents and have extremely high glass transition or melting temperatures due to their rigid backbones which limited their applications.…”

Section: Introductionmentioning

confidence: 99%

Study on preparation and properties of novel reactive phenolic hydroxyl-containing polyimides

et al. 2012

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Novel reactive polyimides (PIs) containing phenolic hydroxyl functionalities were prepared from 4-(4-hydroxyphenyl)-2,6-bis[3-(4-aminophenoxy)phenyl]pyridine (m,p-HAPP) with various aromatic dianhydrides via one-step polycondensation procedure. The inherent viscosities of the PIs were 0.54-0.63 dL/g in DMF solution and most of them were readily soluble in common organic solvents such as DMF, DMAc, NMP, and m-Cresol, etc. Meanwhile, the PIs also had good thermal stability, with the glass transition temperature (T g ) of 221.7-310.5°C, the temperature at 10 % weight loss of 524.1-579.3°C in nitrogen atmosphere. Then commercial epoxy resin was cured in the presence of different ratios of the reactive polyimide, giving a series of polyimide modified epoxy films. Thermogravimetric analysis showed the increase of the temperature at 5 % weight loss of the films with the increase of the polyimide content; 296°C for 0 %, 309°C for 1.95 %, 337°C for 3.85 % and 350°C for 5.63 %.

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Thermal graft copolymerization of 4-vinyl pyridine on polyimide to improve adhesion to copper

Cited by 21 publications

References 17 publications

Improving the Efficiency of Organic Solar Cells upon Addition of Polyvinylpyridine

Improving the Efficiency of Organic Solar Cells upon Addition of Polyvinylpyridine

Novel heterocyclic semi-aromatic polyamides: synthesis and characterization

Study on preparation and properties of novel reactive phenolic hydroxyl-containing polyimides

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