Self-Assembly and Visualization of Poly(3-hexyl-thiophene) Chain Alignment along Boron Nitride Nanotubes

Martinez‐Rubi, Yadienka; Jakubek, Zygmunt J.; Jakubinek, Michael B.; Kh, Kim; Cheng, Fuyong; Couillard, Martin; Kingston, Christopher T.; Simard, Benoît

doi:10.1021/acs.jpcc.5b09049

Cited by 32 publications

(56 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…to oxidize amorphous boron to B 2 O 3 27,37,[70][71][72] . The optimal oxidation temperature was chosen based on the TGA results in Figure 2e-g, and the exposure time was fixed to 6 h to remove amorphous boron.…”

Section: Resultsmentioning

confidence: 99%

“…In particular, BNNT has not only the unique 1D structure stable up to a temperature of 850 °C but also their superior mechanical properties and chemical resistance 7,9,10,19,[21][22][23] . Therefore, BNNTs among BN materials have been applied to various applications, such as BNNT-polymer composites, BNNT-metal composites, and biological applications 7,9,10,12,15,21,[24][25][26][27][28][29][30][31][32][33] . Additionally, since BNNTs have abundant B 10 isotope, which has the largest scattering cross-section for neutron absorption among low Z atoms, they can be employed as a neutron shielding agent 24,34,35 .…”

mentioning

confidence: 99%

See 1 more Smart Citation

Single- and double-walled boron nitride nanotubes: Controlled synthesis and application for water purification

Cho

Kim

Hwang

et al. 2020

Sci Rep

View full text Add to dashboard Cite

Research interest in boron nitride nanotubes (Bnnts) has increased after the recent success of largescale Bnnt syntheses using high-temperature-pressure laser ablation or high-temperature plasma methods. Nonetheless, there are limits to the application and commercialization of these materials because of the difficulties associated with their fine structural control. Herein, the growth kinetics of Bnnts were systemically studied for this purpose. the growth pressure of the nitrogen feed gas was varied while the growth temperature remained constant, which was confirmed by black body radiation measurements and calculations based on a heat loss model. Changing from the diffusion-limited regime to the supply-limited regime of growth kinetics based on the optimized BNNT synthesis condition afforded the control of the number of BNNT walls. The total amount of BNNTs possessing single and double walls was over 70%, and the BNNT surface area increased to 278.2 m 2 /g corresponding to small wall numbers and diameters. taking advantage of the large surface area and high-temperature durability of the material, BNNTs utilized as a recyclable adsorbent for water purification. The efficiency of the BNNTs for capturing methylene blue particles in water was approximately 94%, even after three repetition cycles, showing the potential of the material for application in the filter industry.

show abstract

Section: Resultsmentioning

confidence: 99%

mentioning

confidence: 99%

Single- and double-walled boron nitride nanotubes: Controlled synthesis and application for water purification

Cho

Kim

Hwang

et al. 2020

Sci Rep

View full text Add to dashboard Cite

show abstract

“…Upon addition of BNNTs, the polymers aggregate with the BNNTs, similar to how poly(carbazole)s have been shown to aggregate with themselves [ 46 ] and poly(thiophene)s aggregate to the surface of BNNTs through strong π‐π interactions. [ 30 ] This aggregation is evident by a red‐shift of the maximum absorption and the presence of partially resolved band structure for all four polymers (Figure 4). The red‐shift for the homopolymers of 45 and 47 nm was significantly larger than for the heteropolymers (31 and 20 nm, Table 2).…”

Section: Resultsmentioning

confidence: 97%

“…Noncovalent functionalization of BNNTs has been reported in the literature, with both conjugated polymers and small molecules exploiting the presence of π‐electrons in the BNNT backbone. [ 27 ] Poly[ m ‐phenylenevinylene‐ co ‐(2,5‐dioctoxy‐ p ‐phenylenevinylene)] (PmPV), [ 15,28 ] rigid‐rod poly( p ‐phenyleneethynylene) derivatives and poly(thiophene)s [ 29–31 ] have all been employed to disperse BNNTs into organic solvents, [ 29 ] whereas aqueous dispersions of BNNTs have been prepared with anionic perylene. [ 32 ] These examples suggest that BNNTs can be selectively coated by the conjugated polymers or small molecules, rendering them soluble and offering a route toward the removal of non‐nanotube impurities.…”

Section: Introductionmentioning

confidence: 99%

Noncovalent functionalization of boron nitride nanotubes using poly(2,7‐carbazole)s

Rice

Bodnaryk

Tamblyn

et al. 2020

Journal of Polymer Science

Self Cite

View full text Add to dashboard Cite

To fully actualize the potential of boron nitride nanotubes (BNNTs), it is necessary to overcome the inherent insolubility of this nanomaterial. Drawing on the successes realized in the analogous carbon nanotube field, noncovalent functionalization with conjugated polymers offers a simple, scalable route toward the production of stable dispersions of BNNTs. 2,7‐carbazoles were chosen as our core monomer based on density functional theory (DFT) predictions, which suggest superior interactions with BNNTs when compared to fluorene‐BNNT interactions. Homo poly(2,7‐carbazole)s and copolymers with fluorenes were synthesized and used successfully to disperse BNNTs into organic solvents. Thermogravimetric analysis and atomic force microscopy results confirm the proficiency of these polymers to disperse large amounts (> 80% by weight) of individualized BNNTs. Analysis of absorbance data shows that the choice of solvent is critical, with stability enhanced in THF compared to CHCl3 due to the more efficient planarization of polymer chains on the surface of BNNTs, particularly for the homopolymers. The utility of these highly‐soluble poly(2,7‐carbazole)‐BNNT complexes for printed electronics and transparent composites was demonstrated by the fabrication of simple capacitors and incorporation into poly(methyl methacrylate) composites, respectively.

show abstract

“…The asproduced BNNT material was purified by use of molecular chlorine at elevated temperature to etch various impurities as reported recently. [40] Details on the preparation of the dispersions and noncovalent functionalization with regiorandom poly(3-hexylthiophene-2,5-diyl) (rra-P3HT) can be found in the work completed by Martinez-Rubi et al [41] A 0.2 mg mL −1 suspension of rra-P3HT functionalized BNNTs in chloroform was spray-coated on Melinex using an Iwata Air Brush Studio Series Smart Jet air compressor to generate PET coated films containing BNNT surface concentrations of 36, 71, and 142 mg m −2 , respectively.…”

Section: Methodsmentioning

confidence: 99%

Boron Nitride Nanotube Coatings for Thermal Management of Printed Silver Inks on Temperature Sensitive Substrates

Wagner

Paquet

Martinez‐Rubi

et al. 2021

Adv Elect Materials

Self Cite

View full text Add to dashboard Cite

sive, high throughput technology to integrate functional inks on low-temperature flexible substrates and to mass-fabricate electronics. A wide range of ink formulations have already been successfully incorporated into electronics using screenprinting, including flake-based ink, [7] nanowire inks, [8] nanoparticle (NP) inks, [9][10][11] and molecular inks. [12,13] Molecular inks derived from metal carboxylate salts have become a viable option to address costly or performative limitations exhibited by flake-based and NP inks. [13] They achieve high electrical performance due to their near bulk conductivity, and mechanically robust traces can be printed with low surface roughness and superior adhesion onto flexible substrates. Through the decomposition of the metal complex by means of photonic or thermal sintering, several ink formulations containing salts such as silver i) and copper ii) ethylene glycol carboxylates, and silver neodecanoate have all demonstrated a capacity to print highly conductive traces. [14][15][16] Silver neodecanoate (AgND) in particular can produce metallic traces that exhibit high current carrying capacity (CCC), low sheet resistivity, and low surface roughness upon printing. [13] Although AgND inks provide a performance-competitive alternative to particle-based inks, the high irradiative and thermal budget required to decompose and convert the ink to its metallic state necessitates a highly calibrated sintering sequence to avoid damaging the substrate.Printed electronics provide inexpensive and light weight electrical components to fuel emerging applications. One major challenge is the high temperature required to sinter conductive metal inks, which leads to thermal degradation of the substrate and subsequently poor performance. A boron nitride nanotube (BNNT) interfacial film is reported for thermal management in rapid processing of a printable silver molecular ink platform using intense pulsed light (IPL) sintering techniques. The inclusion of BNNT thin films of varying surface concentrations deposited between the substrate and the printed features reduces thermal damage to the substrate during sintering while simultaneously improving electrical performance, achieving a sheet resistance value as low as 140 mΩ sq −1 . A wide range of sintering energies ranging from 2.0 and 3.2 J cm −2 are investigated along with printed trace widths ranging from 5 mil (0.127 mm) to 20 mil (0.508 mm). Increases in the rate of cooling and in the current carrying capacity are confirmed with the inclusion of the BNNTs. Overall the thin coating of BNNTs presents no drawbacks while significantly improving the electrical properties of IPL sintered conductive traces and thus represents a simple approach that will advance the adoption of IPL for fabricating printed electronic components.

show abstract

Self-Assembly and Visualization of Poly(3-hexyl-thiophene) Chain Alignment along Boron Nitride Nanotubes

Cited by 32 publications

References 20 publications

Single- and double-walled boron nitride nanotubes: Controlled synthesis and application for water purification

Single- and double-walled boron nitride nanotubes: Controlled synthesis and application for water purification

Noncovalent functionalization of boron nitride nanotubes using poly(2,7‐carbazole)s

Boron Nitride Nanotube Coatings for Thermal Management of Printed Silver Inks on Temperature Sensitive Substrates

Contact Info

Product

Resources

About